Refactor the Custom Space patch.

Instead of modifying all the get_constraint_targets and
flush_constraint_targets callbacks, introduce wrapper API
functions and handle the new reference there.

Also, it is not needed to do all the target dance to compute
the space_obj_world_matrix.

.clang-tidy

@@ -29,7 +29,6 @@ Checks:  >
   -bugprone-sizeof-expression,
   -bugprone-integer-division,
 
-  -bugprone-exception-escape,
   -bugprone-redundant-branch-condition,
 
   modernize-*,

CMakeLists.txt

@@ -1480,10 +1480,12 @@ if(CMAKE_COMPILER_IS_GNUCC)
   ADD_CHECK_C_COMPILER_FLAG(C_REMOVE_STRICT_FLAGS C_WARN_NO_INT_IN_BOOL_CONTEXT     -Wno-int-in-bool-context)
   ADD_CHECK_C_COMPILER_FLAG(C_REMOVE_STRICT_FLAGS C_WARN_NO_FORMAT                  -Wno-format)
   ADD_CHECK_C_COMPILER_FLAG(C_REMOVE_STRICT_FLAGS C_WARN_NO_SWITCH                  -Wno-switch)
+  ADD_CHECK_C_COMPILER_FLAG(C_REMOVE_STRICT_FLAGS C_WARN_NO_UNUSED_VARIABLE         -Wno-unused-variable)
 
   ADD_CHECK_CXX_COMPILER_FLAG(CXX_REMOVE_STRICT_FLAGS CXX_WARN_NO_CLASS_MEMACCESS     -Wno-class-memaccess)
   ADD_CHECK_CXX_COMPILER_FLAG(CXX_REMOVE_STRICT_FLAGS CXX_WARN_NO_COMMENT             -Wno-comment)
   ADD_CHECK_CXX_COMPILER_FLAG(CXX_REMOVE_STRICT_FLAGS CXX_WARN_NO_UNUSED_TYPEDEFS     -Wno-unused-local-typedefs)
+  ADD_CHECK_CXX_COMPILER_FLAG(CXX_REMOVE_STRICT_FLAGS CXX_WARN_NO_UNUSED_VARIABLE     -Wno-unused-variable)
 
   if(CMAKE_COMPILER_IS_GNUCC AND (NOT "${CMAKE_C_COMPILER_VERSION}" VERSION_LESS "7.0"))
     ADD_CHECK_C_COMPILER_FLAG(C_REMOVE_STRICT_FLAGS C_WARN_NO_IMPLICIT_FALLTHROUGH    -Wno-implicit-fallthrough)
@@ -1538,6 +1540,7 @@ elseif(CMAKE_C_COMPILER_ID MATCHES "Clang")
   ADD_CHECK_CXX_COMPILER_FLAG(CXX_REMOVE_STRICT_FLAGS CXX_WARN_NO_CXX11_NARROWING -Wno-c++11-narrowing)
   ADD_CHECK_CXX_COMPILER_FLAG(CXX_REMOVE_STRICT_FLAGS CXX_WARN_NO_NON_VIRTUAL_DTOR -Wno-non-virtual-dtor)
   ADD_CHECK_CXX_COMPILER_FLAG(CXX_REMOVE_STRICT_FLAGS CXX_WARN_NO_UNUSED_MACROS -Wno-unused-macros)
+  ADD_CHECK_CXX_COMPILER_FLAG(CXX_REMOVE_STRICT_FLAGS CXX_WARN_NO_UNUSED_VARIABLE  -Wno-unused-variable)
   ADD_CHECK_CXX_COMPILER_FLAG(CXX_REMOVE_STRICT_FLAGS CXX_WARN_NO_REORDER -Wno-reorder)
   ADD_CHECK_CXX_COMPILER_FLAG(CXX_REMOVE_STRICT_FLAGS CXX_WARN_NO_COMMENT -Wno-comment)
   ADD_CHECK_CXX_COMPILER_FLAG(CXX_REMOVE_STRICT_FLAGS CXX_WARN_NO_UNUSED_TYPEDEFS -Wno-unused-local-typedefs)

build_files/buildbot/codesign/archive_with_indicator.py

@@ -18,12 +18,72 @@
 
 # <pep8 compliant>
 
+import dataclasses
+import json
 import os
+
 from pathlib import Path
+from typing import Optional
 
 import codesign.util as util
 
 
+class ArchiveStateError(Exception):
+    message: str
+
+    def __init__(self, message):
+        self.message = message
+        super().__init__(self.message)
+
+
+@dataclasses.dataclass
+class ArchiveState:
+    """
+    Additional information (state) of the archive
+
+    Includes information like expected file size of the archive file in the case
+    the archive file is expected to be successfully created.
+
+    If the archive can not be created, this state will contain error message
+    indicating details of error.
+    """
+
+    # Size in bytes of the corresponding archive.
+    file_size: Optional[int] = None
+
+    # Non-empty value indicates that error has happenned.
+    error_message: str = ''
+
+    def has_error(self) -> bool:
+        """
+        Check whether the archive is at error state
+        """
+
+        return self.error_message
+
+    def serialize_to_string(self) -> str:
+        payload = dataclasses.asdict(self)
+        return json.dumps(payload, sort_keys=True, indent=4)
+
+    def serialize_to_file(self, filepath: Path) -> None:
+        string = self.serialize_to_string()
+        filepath.write_text(string)
+
+    @classmethod
+    def deserialize_from_string(cls, string: str) -> 'ArchiveState':
+        try:
+            object_as_dict = json.loads(string)
+        except json.decoder.JSONDecodeError:
+            raise ArchiveStateError('Error parsing JSON')
+
+        return cls(**object_as_dict)
+
+    @classmethod
+    def deserialize_from_file(cls, filepath: Path):
+        string = filepath.read_text()
+        return cls.deserialize_from_string(string)
+
+
 class ArchiveWithIndicator:
     """
     The idea of this class is to wrap around logic which takes care of keeping
@@ -79,6 +139,19 @@ class ArchiveWithIndicator:
         if not self.ready_indicator_filepath.exists():
             return False
 
+        try:
+            archive_state = ArchiveState.deserialize_from_file(
+                self.ready_indicator_filepath)
+        except ArchiveStateError as error:
+            print(f'Error deserializing archive state: {error.message}')
+            return False
+
+        if archive_state.has_error():
+            # If the error did happen during codesign procedure there will be no
+            # corresponding archive file.
+            # The caller code will deal with the error check further.
+            return True
+
         # Sometimes on macOS indicator file appears prior to the actual archive
         # despite the order of creation and os.sync() used in tag_ready().
         # So consider archive not ready if there is an indicator without an
@@ -88,23 +161,11 @@ class ArchiveWithIndicator:
                   f'({self.archive_filepath}) to appear.')
             return False
 
-        # Read archive size from indicator/
-        #
-        # Assume that file is either empty or is fully written. This is being checked
-        # by performing ValueError check since empty string will throw this exception
-        # when attempted to be converted to int.
-        expected_archive_size_str = self.ready_indicator_filepath.read_text()
-        try:
-            expected_archive_size = int(expected_archive_size_str)
-        except ValueError:
-            print(f'Invalid archive size "{expected_archive_size_str}"')
-            return False
-
         # Wait for until archive is fully stored.
         actual_archive_size = self.archive_filepath.stat().st_size
-        if actual_archive_size != expected_archive_size:
+        if actual_archive_size != archive_state.file_size:
             print('Partial/invalid archive size (expected '
-                  f'{expected_archive_size} got {actual_archive_size})')
+                  f'{archive_state.file_size} got {actual_archive_size})')
             return False
 
         return True
@@ -129,7 +190,7 @@ class ArchiveWithIndicator:
             print(f'Exception checking archive: {e}')
             return False
 
-    def tag_ready(self) -> None:
+    def tag_ready(self, error_message='') -> None:
         """
         Tag the archive as ready by creating the corresponding indication file.
 
@@ -138,13 +199,34 @@ class ArchiveWithIndicator:
               If it is violated, an assert will fail.
         """
         assert not self.is_ready()
+
         # Try the best to make sure everything is synced to the file system,
         # to avoid any possibility of stamp appearing on a network share prior to
         # an actual file.
         if util.get_current_platform() != util.Platform.WINDOWS:
             os.sync()
-        archive_size = self.archive_filepath.stat().st_size
-        self.ready_indicator_filepath.write_text(str(archive_size))
+
+        archive_size = -1
+        if self.archive_filepath.exists():
+            archive_size = self.archive_filepath.stat().st_size
+
+        archive_info = ArchiveState(
+            file_size=archive_size, error_message=error_message)
+
+        self.ready_indicator_filepath.write_text(
+            archive_info.serialize_to_string())
+
+    def get_state(self) -> ArchiveState:
+        """
+        Get state object for this archive
+
+        The state is read from the corresponding state file.
+        """
+
+        try:
+            return ArchiveState.deserialize_from_file(self.ready_indicator_filepath)
+        except ArchiveStateError as error:
+            return ArchiveState(error_message=f'Error in information format: {error}')
 
     def clean(self) -> None:
         """

build_files/buildbot/codesign/base_code_signer.py

@@ -58,6 +58,7 @@ import codesign.util as util
 
 from codesign.absolute_and_relative_filename import AbsoluteAndRelativeFileName
 from codesign.archive_with_indicator import ArchiveWithIndicator
+from codesign.exception import CodeSignException
 
 
 logger = logging.getLogger(__name__)
@@ -145,13 +146,13 @@ class BaseCodeSigner(metaclass=abc.ABCMeta):
     def cleanup_environment_for_builder(self) -> None:
         # TODO(sergey): Revisit need of cleaning up the existing files.
         # In practice it wasn't so helpful, and with multiple clients
-        # talking to the same server it becomes even mor etricky.
+        # talking to the same server it becomes even more tricky.
         pass
 
     def cleanup_environment_for_signing_server(self) -> None:
         # TODO(sergey): Revisit need of cleaning up the existing files.
         # In practice it wasn't so helpful, and with multiple clients
-        # talking to the same server it becomes even mor etricky.
+        # talking to the same server it becomes even more tricky.
         pass
 
     def generate_request_id(self) -> str:
@@ -220,9 +221,15 @@ class BaseCodeSigner(metaclass=abc.ABCMeta):
         """
         Wait until archive with signed files is available.
 
+        Will only return if the archive with signed files is available. If there
+        was an error during code sign procedure the SystemExit exception is
+        raised, with the message set to the error reported by the codesign
+        server.
+
         Will only wait for the configured time. If that time exceeds and there
         is still no responce from the signing server the application will exit
         with a non-zero exit code.
+
         """
 
         signed_archive_info = self.signed_archive_info_for_request_id(
@@ -236,9 +243,17 @@ class BaseCodeSigner(metaclass=abc.ABCMeta):
             time.sleep(1)
             time_slept_in_seconds = time.monotonic() - time_start
             if time_slept_in_seconds > timeout_in_seconds:
+                signed_archive_info.clean()
                 unsigned_archive_info.clean()
                 raise SystemExit("Signing server didn't finish signing in "
-                                 f"{timeout_in_seconds} seconds, dying :(")
+                                 f'{timeout_in_seconds} seconds, dying :(')
+
+        archive_state = signed_archive_info.get_state()
+        if archive_state.has_error():
+            signed_archive_info.clean()
+            unsigned_archive_info.clean()
+            raise SystemExit(
+                f'Error happenned during codesign procedure: {archive_state.error_message}')
 
     def copy_signed_files_to_directory(
             self, signed_dir: Path, destination_dir: Path) -> None:
@@ -396,7 +411,13 @@ class BaseCodeSigner(metaclass=abc.ABCMeta):
                 temp_dir)
 
             logger_server.info('Signing all requested files...')
-            self.sign_all_files(files)
+            try:
+                self.sign_all_files(files)
+            except CodeSignException as error:
+                signed_archive_info.tag_ready(error_message=error.message)
+                unsigned_archive_info.clean()
+                logger_server.info('Signing is complete with errors.')
+                return
 
             logger_server.info('Packing signed files...')
             pack_files(files=files,

build_files/buildbot/codesign/exception.py

@@ -0,0 +1,26 @@
+# ##### BEGIN GPL LICENSE BLOCK #####
+#
+#  This program is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU General Public License
+#  as published by the Free Software Foundation; either version 2
+#  of the License, or (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program; if not, write to the Free Software Foundation,
+#  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ##### END GPL LICENSE BLOCK #####
+
+# <pep8 compliant>
+
+class CodeSignException(Exception):
+    message: str
+
+    def __init__(self, message):
+        self.message = message
+        super().__init__(self.message)

build_files/buildbot/codesign/macos_code_signer.py

@@ -33,6 +33,7 @@ from buildbot_utils import Builder
 
 from codesign.absolute_and_relative_filename import AbsoluteAndRelativeFileName
 from codesign.base_code_signer import BaseCodeSigner
+from codesign.exception import CodeSignException
 
 logger = logging.getLogger(__name__)
 logger_server = logger.getChild('server')
@@ -45,6 +46,10 @@ EXTENSIONS_TO_BE_SIGNED = {'.dylib', '.so', '.dmg'}
 NAME_PREFIXES_TO_BE_SIGNED = {'python'}
 
 
+class NotarizationException(CodeSignException):
+    pass
+
+
 def is_file_from_bundle(file: AbsoluteAndRelativeFileName) -> bool:
     """
     Check whether file is coming from an .app bundle
@@ -186,7 +191,7 @@ class MacOSCodeSigner(BaseCodeSigner):
                    file.absolute_filepath]
         self.run_command_or_mock(command, util.Platform.MACOS)
 
-    def codesign_all_files(self, files: List[AbsoluteAndRelativeFileName]) -> bool:
+    def codesign_all_files(self, files: List[AbsoluteAndRelativeFileName]) -> None:
         """
         Run codesign tool on all eligible files in the given list.
 
@@ -225,8 +230,6 @@ class MacOSCodeSigner(BaseCodeSigner):
                     file_index + 1, num_signed_files,
                     signed_file.relative_filepath)
 
-        return True
-
     def codesign_bundles(
             self, files: List[AbsoluteAndRelativeFileName]) -> None:
         """
@@ -273,8 +276,6 @@ class MacOSCodeSigner(BaseCodeSigner):
 
         files.extend(extra_files)
 
-        return True
-
     ############################################################################
     # Notarization.
 
@@ -334,7 +335,40 @@ class MacOSCodeSigner(BaseCodeSigner):
         logger_server.error('xcrun command did not report RequestUUID')
         return None
 
-    def notarize_wait_result(self, request_uuid: str) -> bool:
+    def notarize_review_status(self, xcrun_output: str) -> bool:
+        """
+        Review status returned by xcrun's notarization info
+
+        Returns truth if the notarization process has finished.
+        If there are errors during notarization, a NotarizationException()
+        exception is thrown with status message from the notarial office.
+        """
+
+        # Parse status and message
+        status = xcrun_field_value_from_output('Status', xcrun_output)
+        status_message = xcrun_field_value_from_output(
+            'Status Message', xcrun_output)
+
+        if status == 'success':
+            logger_server.info(
+                'Package successfully notarized: %s', status_message)
+            return True
+
+        if status == 'invalid':
+            logger_server.error(xcrun_output)
+            logger_server.error(
+                'Package notarization has failed: %s', status_message)
+            raise NotarizationException(status_message)
+
+        if status == 'in progress':
+            return False
+
+        logger_server.info(
+            'Unknown notarization status %s (%s)', status, status_message)
+
+        return False
+
+    def notarize_wait_result(self, request_uuid: str) -> None:
         """
         Wait for until notarial office have a reply
         """
@@ -351,29 +385,11 @@ class MacOSCodeSigner(BaseCodeSigner):
         timeout_in_seconds = self.config.MACOS_NOTARIZE_TIMEOUT_IN_SECONDS
 
         while True:
-            output = self.check_output_or_mock(
+            xcrun_output = self.check_output_or_mock(
                 command, util.Platform.MACOS, allow_nonzero_exit_code=True)
-            # Parse status and message
-            status = xcrun_field_value_from_output('Status', output)
-            status_message = xcrun_field_value_from_output(
-                'Status Message', output)
 
-            # Review status.
-            if status:
-                if status == 'success':
-                    logger_server.info(
-                        'Package successfully notarized: %s', status_message)
-                    return True
-                elif status == 'invalid':
-                    logger_server.error(output)
-                    logger_server.error(
-                        'Package notarization has failed: %s', status_message)
-                    return False
-                elif status == 'in progress':
-                    pass
-                else:
-                    logger_server.info(
-                        'Unknown notarization status %s (%s)', status, status_message)
+            if self.notarize_review_status(xcrun_output):
+                break
 
             logger_server.info('Keep waiting for notarization office.')
             time.sleep(30)
@@ -394,8 +410,6 @@ class MacOSCodeSigner(BaseCodeSigner):
         command = ['xcrun', 'stapler', 'staple', '-v', file.absolute_filepath]
         self.check_output_or_mock(command, util.Platform.MACOS)
 
-        return True
-
     def notarize_dmg(self, file: AbsoluteAndRelativeFileName) -> bool:
         """
         Run entire pipeline to get DMG notarized.
@@ -414,10 +428,7 @@ class MacOSCodeSigner(BaseCodeSigner):
             return False
 
         # Staple.
-        if not self.notarize_staple(file):
-            return False
-
-        return True
+        self.notarize_staple(file)
 
     def notarize_all_dmg(
             self, files: List[AbsoluteAndRelativeFileName]) -> bool:
@@ -432,10 +443,7 @@ class MacOSCodeSigner(BaseCodeSigner):
             if not self.check_file_is_to_be_signed(file):
                 continue
 
-            if not self.notarize_dmg(file):
-                return False
-
-        return True
+            self.notarize_dmg(file)
 
     ############################################################################
     # Entry point.
@@ -443,11 +451,6 @@ class MacOSCodeSigner(BaseCodeSigner):
     def sign_all_files(self, files: List[AbsoluteAndRelativeFileName]) -> None:
         # TODO(sergey): Handle errors somehow.
 
-        if not self.codesign_all_files(files):
-            return
-
-        if not self.codesign_bundles(files):
-            return
-
-        if not self.notarize_all_dmg(files):
-            return
+        self.codesign_all_files(files)
+        self.codesign_bundles(files)
+        self.notarize_all_dmg(files)

build_files/buildbot/codesign/windows_code_signer.py

@@ -29,6 +29,7 @@ from buildbot_utils import Builder
 
 from codesign.absolute_and_relative_filename import AbsoluteAndRelativeFileName
 from codesign.base_code_signer import BaseCodeSigner
+from codesign.exception import CodeSignException
 
 logger = logging.getLogger(__name__)
 logger_server = logger.getChild('server')
@@ -40,6 +41,9 @@ BLACKLIST_FILE_PREFIXES = (
     'api-ms-', 'concrt', 'msvcp', 'ucrtbase', 'vcomp', 'vcruntime')
 
 
+class SigntoolException(CodeSignException):
+    pass
+
 class WindowsCodeSigner(BaseCodeSigner):
     def check_file_is_to_be_signed(
             self, file: AbsoluteAndRelativeFileName) -> bool:
@@ -50,12 +54,41 @@ class WindowsCodeSigner(BaseCodeSigner):
 
         return file.relative_filepath.suffix in EXTENSIONS_TO_BE_SIGNED
 
+
     def get_sign_command_prefix(self) -> List[str]:
         return [
             'signtool', 'sign', '/v',
             '/f', self.config.WIN_CERTIFICATE_FILEPATH,
             '/tr', self.config.WIN_TIMESTAMP_AUTHORITY_URL]
 
+
+    def run_codesign_tool(self, filepath: Path) -> None:
+        command = self.get_sign_command_prefix() + [filepath]
+        codesign_output = self.check_output_or_mock(command, util.Platform.WINDOWS)
+        logger_server.info(f'signtool output:\n{codesign_output}')
+
+        got_number_of_success = False
+
+        for line in codesign_output.split('\n'):
+            line_clean = line.strip()
+            line_clean_lower = line_clean.lower()
+
+            if line_clean_lower.startswith('number of warnings') or \
+               line_clean_lower.startswith('number of errors'):
+                 number = int(line_clean_lower.split(':')[1])
+                 if number != 0:
+                     raise SigntoolException('Non-clean success of signtool')
+
+            if line_clean_lower.startswith('number of files successfully signed'):
+                 got_number_of_success = True
+                 number = int(line_clean_lower.split(':')[1])
+                 if number != 1:
+                     raise SigntoolException('Signtool did not consider codesign a success')
+
+        if not got_number_of_success:
+            raise SigntoolException('Signtool did not report number of files signed')
+
+
     def sign_all_files(self, files: List[AbsoluteAndRelativeFileName]) -> None:
         # NOTE: Sign files one by one to avoid possible command line length
         # overflow (which could happen if we ever decide to sign every binary
@@ -73,12 +106,7 @@ class WindowsCodeSigner(BaseCodeSigner):
                     file_index + 1, num_files, file.relative_filepath)
                 continue
 
-            command = self.get_sign_command_prefix()
-            command.append(file.absolute_filepath)
             logger_server.info(
                 'Running signtool command for file [%d/%d] %s...',
                 file_index + 1, num_files, file.relative_filepath)
-            # TODO(sergey): Check the status somehow. With a missing certificate
-            # the command still exists with a zero code.
-            self.run_command_or_mock(command, util.Platform.WINDOWS)
-        # TODO(sergey): Report number of signed and ignored files.
+            self.run_codesign_tool(file.absolute_filepath)

build_files/cmake/config/blender_full.cmake

@@ -44,6 +44,7 @@ set(WITH_OPENMP              ON  CACHE BOOL "" FORCE)
 set(WITH_OPENSUBDIV          ON  CACHE BOOL "" FORCE)
 set(WITH_OPENVDB             ON  CACHE BOOL "" FORCE)
 set(WITH_OPENVDB_BLOSC       ON  CACHE BOOL "" FORCE)
+set(WITH_NANOVDB             ON  CACHE BOOL "" FORCE)
 set(WITH_POTRACE             ON  CACHE BOOL "" FORCE)
 set(WITH_PYTHON_INSTALL      ON  CACHE BOOL "" FORCE)
 set(WITH_QUADRIFLOW          ON  CACHE BOOL "" FORCE)

build_files/cmake/config/blender_lite.cmake

@@ -51,6 +51,7 @@ set(WITH_OPENIMAGEIO         OFF CACHE BOOL "" FORCE)
 set(WITH_OPENMP              OFF CACHE BOOL "" FORCE)
 set(WITH_OPENSUBDIV          OFF CACHE BOOL "" FORCE)
 set(WITH_OPENVDB             OFF CACHE BOOL "" FORCE)
+set(WITH_NANOVDB             OFF CACHE BOOL "" FORCE)
 set(WITH_QUADRIFLOW          OFF CACHE BOOL "" FORCE)
 set(WITH_SDL                 OFF CACHE BOOL "" FORCE)
 set(WITH_TBB                 OFF CACHE BOOL "" FORCE)

build_files/cmake/config/blender_release.cmake

@@ -45,6 +45,7 @@ set(WITH_OPENMP              ON  CACHE BOOL "" FORCE)
 set(WITH_OPENSUBDIV          ON  CACHE BOOL "" FORCE)
 set(WITH_OPENVDB             ON  CACHE BOOL "" FORCE)
 set(WITH_OPENVDB_BLOSC       ON  CACHE BOOL "" FORCE)
+set(WITH_NANOVDB             ON  CACHE BOOL "" FORCE)
 set(WITH_POTRACE             ON  CACHE BOOL "" FORCE)
 set(WITH_PYTHON_INSTALL      ON  CACHE BOOL "" FORCE)
 set(WITH_QUADRIFLOW          ON  CACHE BOOL "" FORCE)

build_files/cmake/config/bpy_module.cmake

@@ -28,6 +28,7 @@ set(WITH_OPENCOLLADA         OFF CACHE BOOL "" FORCE)
 set(WITH_INTERNATIONAL       OFF CACHE BOOL "" FORCE)
 set(WITH_BULLET              OFF CACHE BOOL "" FORCE)
 set(WITH_OPENVDB             OFF CACHE BOOL "" FORCE)
+set(WITH_NANOVDB             OFF CACHE BOOL "" FORCE)
 set(WITH_ALEMBIC             OFF CACHE BOOL "" FORCE)
 
 # Depends on Python install, do this to quiet warning.

doc/python_api/sphinx_doc_gen.py

@@ -2188,9 +2188,20 @@ def setup_blender():
 
     # Remove handlers since the functions get included
     # in the doc-string and don't have meaningful names.
-    for ls in bpy.app.handlers:
-        if isinstance(ls, list):
-            ls.clear()
+    lists_to_restore = []
+    for var in bpy.app.handlers:
+        if isinstance(var, list):
+            lists_to_restore.append((var[:], var))
+            var.clear()
+
+    return {
+        "lists_to_restore": lists_to_restore,
+    }
+
+
+def teardown_blender(setup_data):
+    for var_src, var_dst in setup_data["lists_to_restore"]:
+        var_dst[:] = var_src
 
 
 def main():
@@ -2199,7 +2210,7 @@ def main():
     setup_monkey_patch()
 
     # Perform changes to Blender it's self.
-    setup_blender()
+    setup_data = setup_blender()
 
     # eventually, create the dirs
     for dir_path in [ARGS.output_dir, SPHINX_IN]:
@@ -2305,6 +2316,8 @@ def main():
             shutil.copy(os.path.join(SPHINX_OUT_PDF, "contents.pdf"),
                         os.path.join(REFERENCE_PATH, BLENDER_PDF_FILENAME))
 
+    teardown_blender(setup_data)
+
     sys.exit()
 
 

extern/ceres/README.blender

@@ -1,4 +1,4 @@
 Project: Ceres Solver
 URL: http://ceres-solver.org/
-Upstream version 1.11 (aef9c9563b08d5f39eee1576af133a84749d1b48)
+Upstream version 2.0.0
 Local modifications: None

extern/ceres/bundle.sh

@@ -8,8 +8,8 @@ else
 fi
 
 repo="https://ceres-solver.googlesource.com/ceres-solver"
-branch="master"
-tag=""
+#branch="master"
+tag="2.0.0"
 tmp=`mktemp -d`
 checkout="$tmp/ceres"
 

extern/ceres/include/ceres/autodiff_cost_function.h

@@ -153,28 +153,44 @@ template <typename CostFunctor,
           int... Ns>          // Number of parameters in each parameter block.
 class AutoDiffCostFunction : public SizedCostFunction<kNumResiduals, Ns...> {
  public:
-  // Takes ownership of functor. Uses the template-provided value for the
-  // number of residuals ("kNumResiduals").
-  explicit AutoDiffCostFunction(CostFunctor* functor) : functor_(functor) {
+  // Takes ownership of functor by default. Uses the template-provided
+  // value for the number of residuals ("kNumResiduals").
+  explicit AutoDiffCostFunction(CostFunctor* functor,
+                                Ownership ownership = TAKE_OWNERSHIP)
+      : functor_(functor), ownership_(ownership) {
     static_assert(kNumResiduals != DYNAMIC,
                   "Can't run the fixed-size constructor if the number of "
                   "residuals is set to ceres::DYNAMIC.");
   }
 
-  // Takes ownership of functor. Ignores the template-provided
+  // Takes ownership of functor by default. Ignores the template-provided
   // kNumResiduals in favor of the "num_residuals" argument provided.
   //
   // This allows for having autodiff cost functions which return varying
   // numbers of residuals at runtime.
-  AutoDiffCostFunction(CostFunctor* functor, int num_residuals)
-      : functor_(functor) {
+  AutoDiffCostFunction(CostFunctor* functor,
+                       int num_residuals,
+                       Ownership ownership = TAKE_OWNERSHIP)
+      : functor_(functor), ownership_(ownership) {
     static_assert(kNumResiduals == DYNAMIC,
                   "Can't run the dynamic-size constructor if the number of "
                   "residuals is not ceres::DYNAMIC.");
     SizedCostFunction<kNumResiduals, Ns...>::set_num_residuals(num_residuals);
   }
 
-  virtual ~AutoDiffCostFunction() {}
+  explicit AutoDiffCostFunction(AutoDiffCostFunction&& other)
+      : functor_(std::move(other.functor_)), ownership_(other.ownership_) {}
+
+  virtual ~AutoDiffCostFunction() {
+    // Manually release pointer if configured to not take ownership rather than
+    // deleting only if ownership is taken.
+    // This is to stay maximally compatible to old user code which may have
+    // forgotten to implement a virtual destructor, from when the
+    // AutoDiffCostFunction always took ownership.
+    if (ownership_ == DO_NOT_TAKE_OWNERSHIP) {
+      functor_.release();
+    }
+  }
 
   // Implementation details follow; clients of the autodiff cost function should
   // not have to examine below here.
@@ -201,6 +217,7 @@ class AutoDiffCostFunction : public SizedCostFunction<kNumResiduals, Ns...> {
 
  private:
   std::unique_ptr<CostFunctor> functor_;
+  Ownership ownership_;
 };
 
 }  // namespace ceres

extern/ceres/include/ceres/c_api.h

@@ -38,8 +38,10 @@
 #ifndef CERES_PUBLIC_C_API_H_
 #define CERES_PUBLIC_C_API_H_
 
+// clang-format off
 #include "ceres/internal/port.h"
 #include "ceres/internal/disable_warnings.h"
+// clang-format on
 
 #ifdef __cplusplus
 extern "C" {

extern/ceres/include/ceres/cost_function_to_functor.h

@@ -144,8 +144,7 @@ class CostFunctionToFunctor {
 
     // Extract parameter block pointers from params.
     using Indices =
-        std::make_integer_sequence<int,
-                                   ParameterDims::kNumParameterBlocks>;
+        std::make_integer_sequence<int, ParameterDims::kNumParameterBlocks>;
     std::array<const T*, ParameterDims::kNumParameterBlocks> parameter_blocks =
         GetParameterPointers<T>(params, Indices());
 

extern/ceres/include/ceres/covariance.h

@@ -51,7 +51,7 @@ class CovarianceImpl;
 // =======
 // It is very easy to use this class incorrectly without understanding
 // the underlying mathematics. Please read and understand the
-// documentation completely before attempting to use this class.
+// documentation completely before attempting to use it.
 //
 //
 // This class allows the user to evaluate the covariance for a
@@ -73,7 +73,7 @@ class CovarianceImpl;
 // the maximum likelihood estimate of x given observations y is the
 // solution to the non-linear least squares problem:
 //
-//  x* = arg min_x |f(x)|^2
+//  x* = arg min_x |f(x) - y|^2
 //
 // And the covariance of x* is given by
 //
@@ -220,11 +220,11 @@ class CERES_EXPORT Covariance {
     // 1. DENSE_SVD uses Eigen's JacobiSVD to perform the
     //    computations. It computes the singular value decomposition
     //
-    //      U * S * V' = J
+    //      U * D * V' = J
     //
     //    and then uses it to compute the pseudo inverse of J'J as
     //
-    //      pseudoinverse[J'J]^ = V * pseudoinverse[S] * V'
+    //      pseudoinverse[J'J] = V * pseudoinverse[D^2] * V'
     //
     //    It is an accurate but slow method and should only be used
     //    for small to moderate sized problems. It can handle
@@ -235,7 +235,7 @@ class CERES_EXPORT Covariance {
     //
     //      Q * R = J
     //
-    //    [J'J]^-1 = [R*R']^-1
+    //    [J'J]^-1 = [R'*R]^-1
     //
     // SPARSE_QR is not capable of computing the covariance if the
     // Jacobian is rank deficient. Depending on the value of

extern/ceres/include/ceres/dynamic_autodiff_cost_function.h

@@ -40,6 +40,7 @@
 #include "ceres/dynamic_cost_function.h"
 #include "ceres/internal/fixed_array.h"
 #include "ceres/jet.h"
+#include "ceres/types.h"
 #include "glog/logging.h"
 
 namespace ceres {
@@ -78,10 +79,24 @@ namespace ceres {
 template <typename CostFunctor, int Stride = 4>
 class DynamicAutoDiffCostFunction : public DynamicCostFunction {
  public:
-  explicit DynamicAutoDiffCostFunction(CostFunctor* functor)
-      : functor_(functor) {}
+  // Takes ownership by default.
+  DynamicAutoDiffCostFunction(CostFunctor* functor,
+                              Ownership ownership = TAKE_OWNERSHIP)
+      : functor_(functor), ownership_(ownership) {}
 
-  virtual ~DynamicAutoDiffCostFunction() {}
+  explicit DynamicAutoDiffCostFunction(DynamicAutoDiffCostFunction&& other)
+      : functor_(std::move(other.functor_)), ownership_(other.ownership_) {}
+
+  virtual ~DynamicAutoDiffCostFunction() {
+    // Manually release pointer if configured to not take ownership
+    // rather than deleting only if ownership is taken.  This is to
+    // stay maximally compatible to old user code which may have
+    // forgotten to implement a virtual destructor, from when the
+    // AutoDiffCostFunction always took ownership.
+    if (ownership_ == DO_NOT_TAKE_OWNERSHIP) {
+      functor_.release();
+    }
+  }
 
   bool Evaluate(double const* const* parameters,
                 double* residuals,
@@ -151,6 +166,9 @@ class DynamicAutoDiffCostFunction : public DynamicCostFunction {
       }
     }
 
+    if (num_active_parameters == 0) {
+      return (*functor_)(parameters, residuals);
+    }
     // When `num_active_parameters % Stride != 0` then it can be the case
     // that `active_parameter_count < Stride` while parameter_cursor is less
     // than the total number of parameters and with no remaining non-constant
@@ -248,6 +266,7 @@ class DynamicAutoDiffCostFunction : public DynamicCostFunction {
 
  private:
   std::unique_ptr<CostFunctor> functor_;
+  Ownership ownership_;
 };
 
 }  // namespace ceres

extern/ceres/include/ceres/dynamic_numeric_diff_cost_function.h

@@ -44,6 +44,7 @@
 #include "ceres/internal/numeric_diff.h"
 #include "ceres/internal/parameter_dims.h"
 #include "ceres/numeric_diff_options.h"
+#include "ceres/types.h"
 #include "glog/logging.h"
 
 namespace ceres {
@@ -84,6 +85,10 @@ class DynamicNumericDiffCostFunction : public DynamicCostFunction {
       const NumericDiffOptions& options = NumericDiffOptions())
       : functor_(functor), ownership_(ownership), options_(options) {}
 
+  explicit DynamicNumericDiffCostFunction(
+      DynamicNumericDiffCostFunction&& other)
+      : functor_(std::move(other.functor_)), ownership_(other.ownership_) {}
+
   virtual ~DynamicNumericDiffCostFunction() {
     if (ownership_ != TAKE_OWNERSHIP) {
       functor_.release();

extern/ceres/include/ceres/gradient_problem_solver.h

@@ -62,7 +62,8 @@ class CERES_EXPORT GradientProblemSolver {
     // Minimizer options ----------------------------------------
     LineSearchDirectionType line_search_direction_type = LBFGS;
     LineSearchType line_search_type = WOLFE;
-    NonlinearConjugateGradientType nonlinear_conjugate_gradient_type = FLETCHER_REEVES;
+    NonlinearConjugateGradientType nonlinear_conjugate_gradient_type =
+        FLETCHER_REEVES;
 
     // The LBFGS hessian approximation is a low rank approximation to
     // the inverse of the Hessian matrix. The rank of the

extern/ceres/include/ceres/internal/autodiff.h

@@ -198,7 +198,7 @@ struct Make1stOrderPerturbation {
 template <int N, int Offset, typename T, typename JetT>
 struct Make1stOrderPerturbation<N, N, Offset, T, JetT> {
  public:
-  static void Apply(const T* /*src*/, JetT* /*dst*/) {}
+  static void Apply(const T* src, JetT* dst) {}
 };
 
 // Calls Make1stOrderPerturbation for every parameter block.
@@ -229,7 +229,9 @@ struct Make1stOrderPerturbations<std::integer_sequence<int, N, Ns...>,
 
 // End of 'recursion'. Nothing more to do.
 template <int ParameterIdx, int Total>
-struct Make1stOrderPerturbations<std::integer_sequence<int>, ParameterIdx, Total> {
+struct Make1stOrderPerturbations<std::integer_sequence<int>,
+                                 ParameterIdx,
+                                 Total> {
   template <typename T, typename JetT>
   static void Apply(T const* const* /* NOT USED */, JetT* /* NOT USED */) {}
 };

extern/ceres/include/ceres/internal/disable_warnings.h

@@ -34,11 +34,11 @@
 #define CERES_WARNINGS_DISABLED
 
 #ifdef _MSC_VER
-#pragma warning( push )
+#pragma warning(push)
 // Disable the warning C4251 which is triggered by stl classes in
 // Ceres' public interface. To quote MSDN: "C4251 can be ignored "
 // "if you are deriving from a type in the Standard C++ Library"
-#pragma warning( disable : 4251 )
+#pragma warning(disable : 4251)
 #endif
 
 #endif  // CERES_WARNINGS_DISABLED

extern/ceres/include/ceres/internal/eigen.h

@@ -36,31 +36,26 @@
 namespace ceres {
 
 typedef Eigen::Matrix<double, Eigen::Dynamic, 1> Vector;
-typedef Eigen::Matrix<double,
-                      Eigen::Dynamic,
-                      Eigen::Dynamic,
-                      Eigen::RowMajor> Matrix;
+typedef Eigen::Matrix<double, Eigen::Dynamic, Eigen::Dynamic, Eigen::RowMajor>
+    Matrix;
 typedef Eigen::Map<Vector> VectorRef;
 typedef Eigen::Map<Matrix> MatrixRef;
 typedef Eigen::Map<const Vector> ConstVectorRef;
 typedef Eigen::Map<const Matrix> ConstMatrixRef;
 
 // Column major matrices for DenseSparseMatrix/DenseQRSolver
-typedef Eigen::Matrix<double,
-                      Eigen::Dynamic,
-                      Eigen::Dynamic,
-                      Eigen::ColMajor> ColMajorMatrix;
+typedef Eigen::Matrix<double, Eigen::Dynamic, Eigen::Dynamic, Eigen::ColMajor>
+    ColMajorMatrix;
 
-typedef Eigen::Map<ColMajorMatrix, 0,
-                   Eigen::Stride<Eigen::Dynamic, 1>> ColMajorMatrixRef;
+typedef Eigen::Map<ColMajorMatrix, 0, Eigen::Stride<Eigen::Dynamic, 1>>
+    ColMajorMatrixRef;
 
-typedef Eigen::Map<const ColMajorMatrix,
-                   0,
-                   Eigen::Stride<Eigen::Dynamic, 1>> ConstColMajorMatrixRef;
+typedef Eigen::Map<const ColMajorMatrix, 0, Eigen::Stride<Eigen::Dynamic, 1>>
+    ConstColMajorMatrixRef;
 
 // C++ does not support templated typdefs, thus the need for this
 // struct so that we can support statically sized Matrix and Maps.
- template <int num_rows = Eigen::Dynamic, int num_cols = Eigen::Dynamic>
+template <int num_rows = Eigen::Dynamic, int num_cols = Eigen::Dynamic>
 struct EigenTypes {
   typedef Eigen::Matrix<double,
                         num_rows,

extern/ceres/include/ceres/internal/fixed_array.h

@@ -30,6 +30,7 @@
 #ifndef CERES_PUBLIC_INTERNAL_FIXED_ARRAY_H_
 #define CERES_PUBLIC_INTERNAL_FIXED_ARRAY_H_
 
+#include <Eigen/Core>  // For Eigen::aligned_allocator
 #include <algorithm>
 #include <array>
 #include <cstddef>
@@ -37,8 +38,6 @@
 #include <tuple>
 #include <type_traits>
 
-#include <Eigen/Core> // For Eigen::aligned_allocator
-
 #include "ceres/internal/memory.h"
 #include "glog/logging.h"
 

extern/ceres/include/ceres/internal/integer_sequence_algorithm.h

@@ -62,7 +62,8 @@ struct SumImpl;
 // Strip of and sum the first number.
 template <typename T, T N, T... Ns>
 struct SumImpl<std::integer_sequence<T, N, Ns...>> {
-  static constexpr T Value = N + SumImpl<std::integer_sequence<T, Ns...>>::Value;
+  static constexpr T Value =
+      N + SumImpl<std::integer_sequence<T, Ns...>>::Value;
 };
 
 // Strip of and sum the first two numbers.
@@ -129,10 +130,14 @@ template <typename T, T Sum, typename SeqIn, typename SeqOut>
 struct ExclusiveScanImpl;
 
 template <typename T, T Sum, T N, T... Ns, T... Rs>
-struct ExclusiveScanImpl<T, Sum, std::integer_sequence<T, N, Ns...>,
+struct ExclusiveScanImpl<T,
+                         Sum,
+                         std::integer_sequence<T, N, Ns...>,
                          std::integer_sequence<T, Rs...>> {
   using Type =
-      typename ExclusiveScanImpl<T, Sum + N, std::integer_sequence<T, Ns...>,
+      typename ExclusiveScanImpl<T,
+                                 Sum + N,
+                                 std::integer_sequence<T, Ns...>,
                                  std::integer_sequence<T, Rs..., Sum>>::Type;
 };
 

extern/ceres/include/ceres/internal/numeric_diff.h

@@ -47,15 +47,17 @@
 #include "ceres/types.h"
 #include "glog/logging.h"
 
-
 namespace ceres {
 namespace internal {
 
 // This is split from the main class because C++ doesn't allow partial template
 // specializations for member functions. The alternative is to repeat the main
 // class for differing numbers of parameters, which is also unfortunate.
-template <typename CostFunctor, NumericDiffMethodType kMethod,
-          int kNumResiduals, typename ParameterDims, int kParameterBlock,
+template <typename CostFunctor,
+          NumericDiffMethodType kMethod,
+          int kNumResiduals,
+          typename ParameterDims,
+          int kParameterBlock,
           int kParameterBlockSize>
 struct NumericDiff {
   // Mutates parameters but must restore them before return.
@@ -66,23 +68,23 @@ struct NumericDiff {
       int num_residuals,
       int parameter_block_index,
       int parameter_block_size,
-      double **parameters,
-      double *jacobian) {
+      double** parameters,
+      double* jacobian) {
+    using Eigen::ColMajor;
     using Eigen::Map;
     using Eigen::Matrix;
     using Eigen::RowMajor;
-    using Eigen::ColMajor;
 
     DCHECK(jacobian);
 
     const int num_residuals_internal =
         (kNumResiduals != ceres::DYNAMIC ? kNumResiduals : num_residuals);
     const int parameter_block_index_internal =
-        (kParameterBlock != ceres::DYNAMIC ? kParameterBlock :
-                                             parameter_block_index);
+        (kParameterBlock != ceres::DYNAMIC ? kParameterBlock
+                                           : parameter_block_index);
     const int parameter_block_size_internal =
-        (kParameterBlockSize != ceres::DYNAMIC ? kParameterBlockSize :
-                                                 parameter_block_size);
+        (kParameterBlockSize != ceres::DYNAMIC ? kParameterBlockSize
+                                               : parameter_block_size);
 
     typedef Matrix<double, kNumResiduals, 1> ResidualVector;
     typedef Matrix<double, kParameterBlockSize, 1> ParameterVector;
@@ -97,17 +99,17 @@ struct NumericDiff {
                    (kParameterBlockSize == 1) ? ColMajor : RowMajor>
         JacobianMatrix;
 
-    Map<JacobianMatrix> parameter_jacobian(jacobian,
-                                           num_residuals_internal,
-                                           parameter_block_size_internal);
+    Map<JacobianMatrix> parameter_jacobian(
+        jacobian, num_residuals_internal, parameter_block_size_internal);
 
     Map<ParameterVector> x_plus_delta(
         parameters[parameter_block_index_internal],
         parameter_block_size_internal);
     ParameterVector x(x_plus_delta);
-    ParameterVector step_size = x.array().abs() *
-        ((kMethod == RIDDERS) ? options.ridders_relative_initial_step_size :
-        options.relative_step_size);
+    ParameterVector step_size =
+        x.array().abs() * ((kMethod == RIDDERS)
+                               ? options.ridders_relative_initial_step_size
+                               : options.relative_step_size);
 
     // It is not a good idea to make the step size arbitrarily
     // small. This will lead to problems with round off and numerical
@@ -118,8 +120,8 @@ struct NumericDiff {
     // For Ridders' method, the initial step size is required to be large,
     // thus ridders_relative_initial_step_size is used.
     if (kMethod == RIDDERS) {
-      min_step_size = std::max(min_step_size,
-                               options.ridders_relative_initial_step_size);
+      min_step_size =
+          std::max(min_step_size, options.ridders_relative_initial_step_size);
     }
 
     // For each parameter in the parameter block, use finite differences to
@@ -133,7 +135,9 @@ struct NumericDiff {
       const double delta = std::max(min_step_size, step_size(j));
 
       if (kMethod == RIDDERS) {
-        if (!EvaluateRiddersJacobianColumn(functor, j, delta,
+        if (!EvaluateRiddersJacobianColumn(functor,
+                                           j,
+                                           delta,
                                            options,
                                            num_residuals_internal,
                                            parameter_block_size_internal,
@@ -146,7 +150,9 @@ struct NumericDiff {
           return false;
         }
       } else {
-        if (!EvaluateJacobianColumn(functor, j, delta,
+        if (!EvaluateJacobianColumn(functor,
+                                    j,
+                                    delta,
                                     num_residuals_internal,
                                     parameter_block_size_internal,
                                     x.data(),
@@ -182,8 +188,7 @@ struct NumericDiff {
     typedef Matrix<double, kParameterBlockSize, 1> ParameterVector;
 
     Map<const ParameterVector> x(x_ptr, parameter_block_size);
-    Map<ParameterVector> x_plus_delta(x_plus_delta_ptr,
-                                      parameter_block_size);
+    Map<ParameterVector> x_plus_delta(x_plus_delta_ptr, parameter_block_size);
 
     Map<ResidualVector> residuals(residuals_ptr, num_residuals);
     Map<ResidualVector> temp_residuals(temp_residuals_ptr, num_residuals);
@@ -191,9 +196,8 @@ struct NumericDiff {
     // Mutate 1 element at a time and then restore.
     x_plus_delta(parameter_index) = x(parameter_index) + delta;
 
-    if (!VariadicEvaluate<ParameterDims>(*functor,
-                                         parameters,
-                                         residuals.data())) {
+    if (!VariadicEvaluate<ParameterDims>(
+            *functor, parameters, residuals.data())) {
       return false;
     }
 
@@ -206,9 +210,8 @@ struct NumericDiff {
       // Compute the function on the other side of x(parameter_index).
       x_plus_delta(parameter_index) = x(parameter_index) - delta;
 
-      if (!VariadicEvaluate<ParameterDims>(*functor,
-                                           parameters,
-                                           temp_residuals.data())) {
+      if (!VariadicEvaluate<ParameterDims>(
+              *functor, parameters, temp_residuals.data())) {
         return false;
       }
 
@@ -217,8 +220,7 @@ struct NumericDiff {
     } else {
       // Forward difference only; reuse existing residuals evaluation.
       residuals -=
-          Map<const ResidualVector>(residuals_at_eval_point,
-                                    num_residuals);
+          Map<const ResidualVector>(residuals_at_eval_point, num_residuals);
     }
 
     // Restore x_plus_delta.
@@ -254,17 +256,17 @@ struct NumericDiff {
       double* x_plus_delta_ptr,
       double* temp_residuals_ptr,
       double* residuals_ptr) {
+    using Eigen::aligned_allocator;
     using Eigen::Map;
     using Eigen::Matrix;
-    using Eigen::aligned_allocator;
 
     typedef Matrix<double, kNumResiduals, 1> ResidualVector;
-    typedef Matrix<double, kNumResiduals, Eigen::Dynamic> ResidualCandidateMatrix;
+    typedef Matrix<double, kNumResiduals, Eigen::Dynamic>
+        ResidualCandidateMatrix;
     typedef Matrix<double, kParameterBlockSize, 1> ParameterVector;
 
     Map<const ParameterVector> x(x_ptr, parameter_block_size);
-    Map<ParameterVector> x_plus_delta(x_plus_delta_ptr,
-                                      parameter_block_size);
+    Map<ParameterVector> x_plus_delta(x_plus_delta_ptr, parameter_block_size);
 
     Map<ResidualVector> residuals(residuals_ptr, num_residuals);
     Map<ResidualVector> temp_residuals(temp_residuals_ptr, num_residuals);
@@ -275,18 +277,16 @@ struct NumericDiff {
     // As the derivative is estimated, the step size decreases.
     // By default, the step sizes are chosen so that the middle column
     // of the Romberg tableau uses the input delta.
-    double current_step_size = delta *
-        pow(options.ridders_step_shrink_factor,
-            options.max_num_ridders_extrapolations / 2);
+    double current_step_size =
+        delta * pow(options.ridders_step_shrink_factor,
+                    options.max_num_ridders_extrapolations / 2);
 
     // Double-buffering temporary differential candidate vectors
     // from previous step size.
     ResidualCandidateMatrix stepsize_candidates_a(
-        num_residuals,
-        options.max_num_ridders_extrapolations);
+        num_residuals, options.max_num_ridders_extrapolations);
     ResidualCandidateMatrix stepsize_candidates_b(
-        num_residuals,
-        options.max_num_ridders_extrapolations);
+        num_residuals, options.max_num_ridders_extrapolations);
     ResidualCandidateMatrix* current_candidates = &stepsize_candidates_a;
     ResidualCandidateMatrix* previous_candidates = &stepsize_candidates_b;
 
@@ -304,7 +304,9 @@ struct NumericDiff {
     //  3. Extrapolation becomes numerically unstable.
     for (int i = 0; i < options.max_num_ridders_extrapolations; ++i) {
       // Compute the numerical derivative at this step size.
-      if (!EvaluateJacobianColumn(functor, parameter_index, current_step_size,
+      if (!EvaluateJacobianColumn(functor,
+                                  parameter_index,
+                                  current_step_size,
                                   num_residuals,
                                   parameter_block_size,
                                   x.data(),
@@ -327,23 +329,24 @@ struct NumericDiff {
 
       // Extrapolation factor for Richardson acceleration method (see below).
       double richardson_factor = options.ridders_step_shrink_factor *
-          options.ridders_step_shrink_factor;
+                                 options.ridders_step_shrink_factor;
       for (int k = 1; k <= i; ++k) {
         // Extrapolate the various orders of finite differences using
         // the Richardson acceleration method.
         current_candidates->col(k) =
             (richardson_factor * current_candidates->col(k - 1) -
-             previous_candidates->col(k - 1)) / (richardson_factor - 1.0);
+             previous_candidates->col(k - 1)) /
+            (richardson_factor - 1.0);
 
         richardson_factor *= options.ridders_step_shrink_factor *
-            options.ridders_step_shrink_factor;
+                             options.ridders_step_shrink_factor;
 
         // Compute the difference between the previous value and the current.
         double candidate_error = std::max(
-            (current_candidates->col(k) -
-             current_candidates->col(k - 1)).norm(),
-            (current_candidates->col(k) -
-             previous_candidates->col(k - 1)).norm());
+            (current_candidates->col(k) - current_candidates->col(k - 1))
+                .norm(),
+            (current_candidates->col(k) - previous_candidates->col(k - 1))
+                .norm());
 
         // If the error has decreased, update results.
         if (candidate_error <= norm_error) {
@@ -365,8 +368,9 @@ struct NumericDiff {
       // Check to see if the current gradient estimate is numerically unstable.
       // If so, bail out and return the last stable result.
       if (i > 0) {
-        double tableau_error = (current_candidates->col(i) -
-            previous_candidates->col(i - 1)).norm();
+        double tableau_error =
+            (current_candidates->col(i) - previous_candidates->col(i - 1))
+                .norm();
 
         // Compare current error to the chosen candidate's error.
         if (tableau_error >= 2 * norm_error) {
@@ -482,14 +486,18 @@ struct EvaluateJacobianForParameterBlocks<ParameterDims,
 
 // End of 'recursion'. Nothing more to do.
 template <typename ParameterDims, int ParameterIdx>
-struct EvaluateJacobianForParameterBlocks<ParameterDims, std::integer_sequence<int>,
+struct EvaluateJacobianForParameterBlocks<ParameterDims,
+                                          std::integer_sequence<int>,
                                           ParameterIdx> {
-  template <NumericDiffMethodType method, int kNumResiduals,
+  template <NumericDiffMethodType method,
+            int kNumResiduals,
             typename CostFunctor>
   static bool Apply(const CostFunctor* /* NOT USED*/,
                     const double* /* NOT USED*/,
-                    const NumericDiffOptions& /* NOT USED*/, int /* NOT USED*/,
-                    double** /* NOT USED*/, double** /* NOT USED*/) {
+                    const NumericDiffOptions& /* NOT USED*/,
+                    int /* NOT USED*/,
+                    double** /* NOT USED*/,
+                    double** /* NOT USED*/) {
     return true;
   }
 };

extern/ceres/include/ceres/internal/port.h

@@ -35,17 +35,17 @@
 #include "ceres/internal/config.h"
 
 #if defined(CERES_USE_OPENMP)
-#  if defined(CERES_USE_CXX_THREADS) || defined(CERES_NO_THREADS)
-#    error CERES_USE_OPENMP is mutually exclusive to CERES_USE_CXX_THREADS and CERES_NO_THREADS
-#  endif
+#if defined(CERES_USE_CXX_THREADS) || defined(CERES_NO_THREADS)
+#error CERES_USE_OPENMP is mutually exclusive to CERES_USE_CXX_THREADS and CERES_NO_THREADS
+#endif
 #elif defined(CERES_USE_CXX_THREADS)
-#  if defined(CERES_USE_OPENMP) || defined(CERES_NO_THREADS)
-#    error CERES_USE_CXX_THREADS is mutually exclusive to CERES_USE_OPENMP, CERES_USE_CXX_THREADS and CERES_NO_THREADS
-#  endif
+#if defined(CERES_USE_OPENMP) || defined(CERES_NO_THREADS)
+#error CERES_USE_CXX_THREADS is mutually exclusive to CERES_USE_OPENMP, CERES_USE_CXX_THREADS and CERES_NO_THREADS
+#endif
 #elif defined(CERES_NO_THREADS)
-#  if defined(CERES_USE_OPENMP) || defined(CERES_USE_CXX_THREADS)
-#    error CERES_NO_THREADS is mutually exclusive to CERES_USE_OPENMP and CERES_USE_CXX_THREADS
-#  endif
+#if defined(CERES_USE_OPENMP) || defined(CERES_USE_CXX_THREADS)
+#error CERES_NO_THREADS is mutually exclusive to CERES_USE_OPENMP and CERES_USE_CXX_THREADS
+#endif
 #else
 #  error One of CERES_USE_OPENMP, CERES_USE_CXX_THREADS or CERES_NO_THREADS must be defined.
 #endif
@@ -54,37 +54,57 @@
 // compiled without any sparse back-end.  Verify that it has not subsequently
 // been inconsistently redefined.
 #if defined(CERES_NO_SPARSE)
-#  if !defined(CERES_NO_SUITESPARSE)
-#    error CERES_NO_SPARSE requires CERES_NO_SUITESPARSE.
-#  endif
-#  if !defined(CERES_NO_CXSPARSE)
-#    error CERES_NO_SPARSE requires CERES_NO_CXSPARSE
-#  endif
-#  if !defined(CERES_NO_ACCELERATE_SPARSE)
-#    error CERES_NO_SPARSE requires CERES_NO_ACCELERATE_SPARSE
-#  endif
-#  if defined(CERES_USE_EIGEN_SPARSE)
-#    error CERES_NO_SPARSE requires !CERES_USE_EIGEN_SPARSE
-#  endif
+#if !defined(CERES_NO_SUITESPARSE)
+#error CERES_NO_SPARSE requires CERES_NO_SUITESPARSE.
+#endif
+#if !defined(CERES_NO_CXSPARSE)
+#error CERES_NO_SPARSE requires CERES_NO_CXSPARSE
+#endif
+#if !defined(CERES_NO_ACCELERATE_SPARSE)
+#error CERES_NO_SPARSE requires CERES_NO_ACCELERATE_SPARSE
+#endif
+#if defined(CERES_USE_EIGEN_SPARSE)
+#error CERES_NO_SPARSE requires !CERES_USE_EIGEN_SPARSE
+#endif
 #endif
 
 // A macro to signal which functions and classes are exported when
-// building a DLL with MSVC.
-//
-// Note that the ordering here is important, CERES_BUILDING_SHARED_LIBRARY
-// is only defined locally when Ceres is compiled, it is never exported to
-// users.  However, in order that we do not have to configure config.h
-// separately for building vs installing, if we are using MSVC and building
-// a shared library, then both CERES_BUILDING_SHARED_LIBRARY and
-// CERES_USING_SHARED_LIBRARY will be defined when Ceres is compiled.
-// Hence it is important that the check for CERES_BUILDING_SHARED_LIBRARY
-// happens first.
-#if defined(_MSC_VER) && defined(CERES_BUILDING_SHARED_LIBRARY)
-# define CERES_EXPORT __declspec(dllexport)
-#elif defined(_MSC_VER) && defined(CERES_USING_SHARED_LIBRARY)
-# define CERES_EXPORT __declspec(dllimport)
+// building a shared library.
+#if defined(_MSC_VER)
+#define CERES_API_SHARED_IMPORT __declspec(dllimport)
+#define CERES_API_SHARED_EXPORT __declspec(dllexport)
+#elif defined(__GNUC__)
+#define CERES_API_SHARED_IMPORT __attribute__((visibility("default")))
+#define CERES_API_SHARED_EXPORT __attribute__((visibility("default")))
 #else
-# define CERES_EXPORT
+#define CERES_API_SHARED_IMPORT
+#define CERES_API_SHARED_EXPORT
+#endif
+
+// CERES_BUILDING_SHARED_LIBRARY is only defined locally when Ceres itself is
+// compiled as a shared library, it is never exported to users.  In order that
+// we do not have to configure config.h separately when building Ceres as either
+// a static or dynamic library, we define both CERES_USING_SHARED_LIBRARY and
+// CERES_BUILDING_SHARED_LIBRARY when building as a shared library.
+#if defined(CERES_USING_SHARED_LIBRARY)
+#if defined(CERES_BUILDING_SHARED_LIBRARY)
+// Compiling Ceres itself as a shared library.
+#define CERES_EXPORT CERES_API_SHARED_EXPORT
+#else
+// Using Ceres as a shared library.
+#define CERES_EXPORT CERES_API_SHARED_IMPORT
+#endif
+#else
+// Ceres was compiled as a static library, export everything.
+#define CERES_EXPORT
+#endif
+
+// Unit tests reach in and test internal functionality so we need a way to make
+// those symbols visible
+#ifdef CERES_EXPORT_INTERNAL_SYMBOLS
+#define CERES_EXPORT_INTERNAL CERES_EXPORT
+#else
+#define CERES_EXPORT_INTERNAL
 #endif
 
 #endif  // CERES_PUBLIC_INTERNAL_PORT_H_

extern/ceres/include/ceres/internal/reenable_warnings.h

@@ -32,7 +32,7 @@
 #undef CERES_WARNINGS_DISABLED
 
 #ifdef _MSC_VER
-#pragma warning( pop )
+#pragma warning(pop)
 #endif
 
 #endif  // CERES_WARNINGS_DISABLED

extern/ceres/include/ceres/internal/variadic_evaluate.h

@@ -46,8 +46,10 @@ namespace internal {
 
 // For fixed size cost functors
 template <typename Functor, typename T, int... Indices>
-inline bool VariadicEvaluateImpl(const Functor& functor, T const* const* input,
-                                 T* output, std::false_type /*is_dynamic*/,
+inline bool VariadicEvaluateImpl(const Functor& functor,
+                                 T const* const* input,
+                                 T* output,
+                                 std::false_type /*is_dynamic*/,
                                  std::integer_sequence<int, Indices...>) {
   static_assert(sizeof...(Indices),
                 "Invalid number of parameter blocks. At least one parameter "
@@ -57,26 +59,31 @@ inline bool VariadicEvaluateImpl(const Functor& functor, T const* const* input,
 
 // For dynamic sized cost functors
 template <typename Functor, typename T>
-inline bool VariadicEvaluateImpl(const Functor& functor, T const* const* input,
-                                 T* output, std::true_type /*is_dynamic*/,
+inline bool VariadicEvaluateImpl(const Functor& functor,
+                                 T const* const* input,
+                                 T* output,
+                                 std::true_type /*is_dynamic*/,
                                  std::integer_sequence<int>) {
   return functor(input, output);
 }
 
 // For ceres cost functors (not ceres::CostFunction)
 template <typename ParameterDims, typename Functor, typename T>
-inline bool VariadicEvaluateImpl(const Functor& functor, T const* const* input,
-                                 T* output, const void* /* NOT USED */) {
+inline bool VariadicEvaluateImpl(const Functor& functor,
+                                 T const* const* input,
+                                 T* output,
+                                 const void* /* NOT USED */) {
   using ParameterBlockIndices =
       std::make_integer_sequence<int, ParameterDims::kNumParameterBlocks>;
   using IsDynamic = std::integral_constant<bool, ParameterDims::kIsDynamic>;
-  return VariadicEvaluateImpl(functor, input, output, IsDynamic(),
-                              ParameterBlockIndices());
+  return VariadicEvaluateImpl(
+      functor, input, output, IsDynamic(), ParameterBlockIndices());
 }
 
 // For ceres::CostFunction
 template <typename ParameterDims, typename Functor, typename T>
-inline bool VariadicEvaluateImpl(const Functor& functor, T const* const* input,
+inline bool VariadicEvaluateImpl(const Functor& functor,
+                                 T const* const* input,
                                  T* output,
                                  const CostFunction* /* NOT USED */) {
   return functor.Evaluate(input, output, nullptr);
@@ -95,7 +102,8 @@ inline bool VariadicEvaluateImpl(const Functor& functor, T const* const* input,
 // blocks. The signature of the functor must have the following signature
 // 'bool()(const T* i_1, const T* i_2, ... const T* i_n, T* output)'.
 template <typename ParameterDims, typename Functor, typename T>
-inline bool VariadicEvaluate(const Functor& functor, T const* const* input,
+inline bool VariadicEvaluate(const Functor& functor,
+                             T const* const* input,
                              T* output) {
   return VariadicEvaluateImpl<ParameterDims>(functor, input, output, &functor);
 }

extern/ceres/include/ceres/iteration_callback.h

@@ -73,7 +73,7 @@ struct CERES_EXPORT IterationSummary {
   bool step_is_successful = false;
 
   // Value of the objective function.
-  double cost = 0.90;
+  double cost = 0.0;
 
   // Change in the value of the objective function in this
   // iteration. This can be positive or negative.

extern/ceres/include/ceres/jet.h

@@ -388,6 +388,8 @@ using std::cbrt;
 using std::ceil;
 using std::cos;
 using std::cosh;
+using std::erf;
+using std::erfc;
 using std::exp;
 using std::exp2;
 using std::floor;
@@ -573,6 +575,21 @@ inline Jet<T, N> fmin(const Jet<T, N>& x, const Jet<T, N>& y) {
   return y < x ? y : x;
 }
 
+// erf is defined as an integral that cannot be expressed analyticaly
+// however, the derivative is trivial to compute
+// erf(x + h) = erf(x) + h * 2*exp(-x^2)/sqrt(pi)
+template <typename T, int N>
+inline Jet<T, N> erf(const Jet<T, N>& x) {
+  return Jet<T, N>(erf(x.a), x.v * M_2_SQRTPI * exp(-x.a * x.a));
+}
+
+// erfc(x) = 1-erf(x)
+// erfc(x + h) = erfc(x) + h * (-2*exp(-x^2)/sqrt(pi))
+template <typename T, int N>
+inline Jet<T, N> erfc(const Jet<T, N>& x) {
+  return Jet<T, N>(erfc(x.a), -x.v * M_2_SQRTPI * exp(-x.a * x.a));
+}
+
 // Bessel functions of the first kind with integer order equal to 0, 1, n.
 //
 // Microsoft has deprecated the j[0,1,n]() POSIX Bessel functions in favour of

extern/ceres/include/ceres/local_parameterization.h

@@ -90,8 +90,8 @@ namespace ceres {
 //
 // An example that occurs commonly in Structure from Motion problems
 // is when camera rotations are parameterized using Quaternion. There,
-// it is useful only make updates orthogonal to that 4-vector defining
-// the quaternion. One way to do this is to let delta be a 3
+// it is useful to only make updates orthogonal to that 4-vector
+// defining the quaternion. One way to do this is to let delta be a 3
 // dimensional vector and define Plus to be
 //
 //   Plus(x, delta) = [cos(|delta|), sin(|delta|) delta / |delta|] * x
@@ -99,7 +99,7 @@ namespace ceres {
 // The multiplication between the two 4-vectors on the RHS is the
 // standard quaternion product.
 //
-// Given g and a point x, optimizing f can now be restated as
+// Given f and a point x, optimizing f can now be restated as
 //
 //     min  f(Plus(x, delta))
 //    delta
@@ -306,6 +306,7 @@ class CERES_EXPORT ProductParameterization : public LocalParameterization {
  public:
   ProductParameterization(const ProductParameterization&) = delete;
   ProductParameterization& operator=(const ProductParameterization&) = delete;
+  virtual ~ProductParameterization() {}
   //
   // NOTE: The constructor takes ownership of the input local
   // parameterizations.
@@ -341,7 +342,8 @@ class CERES_EXPORT ProductParameterization : public LocalParameterization {
   bool Plus(const double* x,
             const double* delta,
             double* x_plus_delta) const override;
-  bool ComputeJacobian(const double* x, double* jacobian) const override;
+  bool ComputeJacobian(const double* x,
+                       double* jacobian) const override;
   int GlobalSize() const override { return global_size_; }
   int LocalSize() const override { return local_size_; }
 
@@ -354,8 +356,8 @@ class CERES_EXPORT ProductParameterization : public LocalParameterization {
 
 }  // namespace ceres
 
+// clang-format off
 #include "ceres/internal/reenable_warnings.h"
 #include "ceres/internal/line_parameterization.h"
 
 #endif  // CERES_PUBLIC_LOCAL_PARAMETERIZATION_H_
-

extern/ceres/include/ceres/numeric_diff_cost_function.h

@@ -192,7 +192,10 @@ class NumericDiffCostFunction : public SizedCostFunction<kNumResiduals, Ns...> {
     }
   }
 
-  ~NumericDiffCostFunction() {
+  explicit NumericDiffCostFunction(NumericDiffCostFunction&& other)
+      : functor_(std::move(other.functor_)), ownership_(other.ownership_) {}
+
+  virtual ~NumericDiffCostFunction() {
     if (ownership_ != TAKE_OWNERSHIP) {
       functor_.release();
     }

extern/ceres/include/ceres/problem.h

@@ -453,13 +453,15 @@ class CERES_EXPORT Problem {
   //   problem.AddResidualBlock(new MyCostFunction, nullptr, &x);
   //
   //   double cost = 0.0;
-  //   problem.Evaluate(Problem::EvaluateOptions(), &cost, nullptr, nullptr, nullptr);
+  //   problem.Evaluate(Problem::EvaluateOptions(), &cost,
+  //                    nullptr, nullptr, nullptr);
   //
   // The cost is evaluated at x = 1. If you wish to evaluate the
   // problem at x = 2, then
   //
   //   x = 2;
-  //   problem.Evaluate(Problem::EvaluateOptions(), &cost, nullptr, nullptr, nullptr);
+  //   problem.Evaluate(Problem::EvaluateOptions(), &cost,
+  //                    nullptr, nullptr, nullptr);
   //
   // is the way to do so.
   //
@@ -475,7 +477,7 @@ class CERES_EXPORT Problem {
   // at the end of an iteration during a solve.
   //
   // Note 4: If an EvaluationCallback is associated with the problem,
-  // then its PrepareForEvaluation method will be called everytime
+  // then its PrepareForEvaluation method will be called every time
   // this method is called with new_point = true.
   bool Evaluate(const EvaluateOptions& options,
                 double* cost,
@@ -509,23 +511,41 @@ class CERES_EXPORT Problem {
   // apply_loss_function as the name implies allows the user to switch
   // the application of the loss function on and off.
   //
-  // WARNING: If an EvaluationCallback is associated with the problem
-  // then it is the user's responsibility to call it before calling
-  // this method.
-  //
-  // This is because, if the user calls this method multiple times, we
-  // cannot tell if the underlying parameter blocks have changed
-  // between calls or not. So if EvaluateResidualBlock was responsible
-  // for calling the EvaluationCallback, it will have to do it
-  // everytime it is called. Which makes the common case where the
-  // parameter blocks do not change, inefficient. So we leave it to
-  // the user to call the EvaluationCallback as needed.
+  // If an EvaluationCallback is associated with the problem, then its
+  // PrepareForEvaluation method will be called every time this method
+  // is called with new_point = true. This conservatively assumes that
+  // the user may have changed the parameter values since the previous
+  // call to evaluate / solve.  For improved efficiency, and only if
+  // you know that the parameter values have not changed between
+  // calls, see EvaluateResidualBlockAssumingParametersUnchanged().
   bool EvaluateResidualBlock(ResidualBlockId residual_block_id,
                              bool apply_loss_function,
                              double* cost,
                              double* residuals,
                              double** jacobians) const;
 
+  // Same as EvaluateResidualBlock except that if an
+  // EvaluationCallback is associated with the problem, then its
+  // PrepareForEvaluation method will be called every time this method
+  // is called with new_point = false.
+  //
+  // This means, if an EvaluationCallback is associated with the
+  // problem then it is the user's responsibility to call
+  // PrepareForEvaluation before calling this method if necessary,
+  // i.e. iff the parameter values have been changed since the last
+  // call to evaluate / solve.'
+  //
+  // This is because, as the name implies, we assume that the
+  // parameter blocks did not change since the last time
+  // PrepareForEvaluation was called (via Solve, Evaluate or
+  // EvaluateResidualBlock).
+  bool EvaluateResidualBlockAssumingParametersUnchanged(
+      ResidualBlockId residual_block_id,
+      bool apply_loss_function,
+      double* cost,
+      double* residuals,
+      double** jacobians) const;
+
  private:
   friend class Solver;
   friend class Covariance;

extern/ceres/include/ceres/rotation.h

@@ -320,8 +320,8 @@ inline void QuaternionToAngleAxis(const T* quaternion, T* angle_axis) {
 }
 
 template <typename T>
-void RotationMatrixToQuaternion(const T* R, T* angle_axis) {
-  RotationMatrixToQuaternion(ColumnMajorAdapter3x3(R), angle_axis);
+void RotationMatrixToQuaternion(const T* R, T* quaternion) {
+  RotationMatrixToQuaternion(ColumnMajorAdapter3x3(R), quaternion);
 }
 
 // This algorithm comes from "Quaternion Calculus and Fast Animation",

extern/ceres/include/ceres/solver.h

@@ -360,7 +360,8 @@ class CERES_EXPORT Solver {
     //
     // If Solver::Options::preconditioner_type == SUBSET, then
     // residual_blocks_for_subset_preconditioner must be non-empty.
-    std::unordered_set<ResidualBlockId> residual_blocks_for_subset_preconditioner;
+    std::unordered_set<ResidualBlockId>
+        residual_blocks_for_subset_preconditioner;
 
     // Ceres supports using multiple dense linear algebra libraries
     // for dense matrix factorizations. Currently EIGEN and LAPACK are
@@ -838,7 +839,7 @@ class CERES_EXPORT Solver {
     int num_linear_solves = -1;
 
     // Time (in seconds) spent evaluating the residual vector.
-    double residual_evaluation_time_in_seconds = 1.0;
+    double residual_evaluation_time_in_seconds = -1.0;
 
     // Number of residual only evaluations.
     int num_residual_evaluations = -1;

extern/ceres/include/ceres/types.h

@@ -50,7 +50,7 @@ namespace ceres {
 // delete on it upon completion.
 enum Ownership {
   DO_NOT_TAKE_OWNERSHIP,
-  TAKE_OWNERSHIP
+  TAKE_OWNERSHIP,
 };
 
 // TODO(keir): Considerably expand the explanations of each solver type.
@@ -185,19 +185,19 @@ enum SparseLinearAlgebraLibraryType {
 
 enum DenseLinearAlgebraLibraryType {
   EIGEN,
-  LAPACK
+  LAPACK,
 };
 
 // Logging options
 // The options get progressively noisier.
 enum LoggingType {
   SILENT,
-  PER_MINIMIZER_ITERATION
+  PER_MINIMIZER_ITERATION,
 };
 
 enum MinimizerType {
   LINE_SEARCH,
-  TRUST_REGION
+  TRUST_REGION,
 };
 
 enum LineSearchDirectionType {
@@ -412,7 +412,7 @@ enum DumpFormatType {
 // specified for the number of residuals. If specified, then the
 // number of residuas for that cost function can vary at runtime.
 enum DimensionType {
-  DYNAMIC = -1
+  DYNAMIC = -1,
 };
 
 // The differentiation method used to compute numerical derivatives in
@@ -433,7 +433,7 @@ enum NumericDiffMethodType {
 enum LineSearchInterpolationType {
   BISECTION,
   QUADRATIC,
-  CUBIC
+  CUBIC,
 };
 
 enum CovarianceAlgorithmType {
@@ -448,8 +448,7 @@ enum CovarianceAlgorithmType {
 // did not write to that memory location.
 const double kImpossibleValue = 1e302;
 
-CERES_EXPORT const char* LinearSolverTypeToString(
-    LinearSolverType type);
+CERES_EXPORT const char* LinearSolverTypeToString(LinearSolverType type);
 CERES_EXPORT bool StringToLinearSolverType(std::string value,
                                            LinearSolverType* type);
 
@@ -459,25 +458,23 @@ CERES_EXPORT bool StringToPreconditionerType(std::string value,
 
 CERES_EXPORT const char* VisibilityClusteringTypeToString(
     VisibilityClusteringType type);
-CERES_EXPORT bool StringToVisibilityClusteringType(std::string value,
-                                      VisibilityClusteringType* type);
+CERES_EXPORT bool StringToVisibilityClusteringType(
+    std::string value, VisibilityClusteringType* type);
 
 CERES_EXPORT const char* SparseLinearAlgebraLibraryTypeToString(
     SparseLinearAlgebraLibraryType type);
 CERES_EXPORT bool StringToSparseLinearAlgebraLibraryType(
-    std::string value,
-    SparseLinearAlgebraLibraryType* type);
+    std::string value, SparseLinearAlgebraLibraryType* type);
 
 CERES_EXPORT const char* DenseLinearAlgebraLibraryTypeToString(
     DenseLinearAlgebraLibraryType type);
 CERES_EXPORT bool StringToDenseLinearAlgebraLibraryType(
-    std::string value,
-    DenseLinearAlgebraLibraryType* type);
+    std::string value, DenseLinearAlgebraLibraryType* type);
 
 CERES_EXPORT const char* TrustRegionStrategyTypeToString(
     TrustRegionStrategyType type);
-CERES_EXPORT bool StringToTrustRegionStrategyType(std::string value,
-                                     TrustRegionStrategyType* type);
+CERES_EXPORT bool StringToTrustRegionStrategyType(
+    std::string value, TrustRegionStrategyType* type);
 
 CERES_EXPORT const char* DoglegTypeToString(DoglegType type);
 CERES_EXPORT bool StringToDoglegType(std::string value, DoglegType* type);
@@ -487,41 +484,39 @@ CERES_EXPORT bool StringToMinimizerType(std::string value, MinimizerType* type);
 
 CERES_EXPORT const char* LineSearchDirectionTypeToString(
     LineSearchDirectionType type);
-CERES_EXPORT bool StringToLineSearchDirectionType(std::string value,
-                                     LineSearchDirectionType* type);
+CERES_EXPORT bool StringToLineSearchDirectionType(
+    std::string value, LineSearchDirectionType* type);
 
 CERES_EXPORT const char* LineSearchTypeToString(LineSearchType type);
-CERES_EXPORT bool StringToLineSearchType(std::string value, LineSearchType* type);
+CERES_EXPORT bool StringToLineSearchType(std::string value,
+                                         LineSearchType* type);
 
 CERES_EXPORT const char* NonlinearConjugateGradientTypeToString(
     NonlinearConjugateGradientType type);
 CERES_EXPORT bool StringToNonlinearConjugateGradientType(
-    std::string value,
-    NonlinearConjugateGradientType* type);
+    std::string value, NonlinearConjugateGradientType* type);
 
 CERES_EXPORT const char* LineSearchInterpolationTypeToString(
     LineSearchInterpolationType type);
 CERES_EXPORT bool StringToLineSearchInterpolationType(
-    std::string value,
-    LineSearchInterpolationType* type);
+    std::string value, LineSearchInterpolationType* type);
 
 CERES_EXPORT const char* CovarianceAlgorithmTypeToString(
     CovarianceAlgorithmType type);
 CERES_EXPORT bool StringToCovarianceAlgorithmType(
-    std::string value,
-    CovarianceAlgorithmType* type);
+    std::string value, CovarianceAlgorithmType* type);
 
 CERES_EXPORT const char* NumericDiffMethodTypeToString(
     NumericDiffMethodType type);
-CERES_EXPORT bool StringToNumericDiffMethodType(
-    std::string value,
-    NumericDiffMethodType* type);
+CERES_EXPORT bool StringToNumericDiffMethodType(std::string value,
+                                                NumericDiffMethodType* type);
 
 CERES_EXPORT const char* LoggingTypeToString(LoggingType type);
 CERES_EXPORT bool StringtoLoggingType(std::string value, LoggingType* type);
 
 CERES_EXPORT const char* DumpFormatTypeToString(DumpFormatType type);
-CERES_EXPORT bool StringtoDumpFormatType(std::string value, DumpFormatType* type);
+CERES_EXPORT bool StringtoDumpFormatType(std::string value,
+                                         DumpFormatType* type);
 CERES_EXPORT bool StringtoDumpFormatType(std::string value, LoggingType* type);
 
 CERES_EXPORT const char* TerminationTypeToString(TerminationType type);

extern/ceres/include/ceres/version.h

@@ -41,8 +41,9 @@
 #define CERES_TO_STRING(x) CERES_TO_STRING_HELPER(x)
 
 // The Ceres version as a string; for example "1.9.0".
-#define CERES_VERSION_STRING CERES_TO_STRING(CERES_VERSION_MAJOR) "." \
-                             CERES_TO_STRING(CERES_VERSION_MINOR) "." \
-                             CERES_TO_STRING(CERES_VERSION_REVISION)
+#define CERES_VERSION_STRING                                    \
+  CERES_TO_STRING(CERES_VERSION_MAJOR)                          \
+  "." CERES_TO_STRING(CERES_VERSION_MINOR) "." CERES_TO_STRING( \
+      CERES_VERSION_REVISION)
 
 #endif  // CERES_PUBLIC_VERSION_H_

extern/ceres/internal/ceres/accelerate_sparse.cc

@@ -33,18 +33,19 @@
 
 #ifndef CERES_NO_ACCELERATE_SPARSE
 
-#include "ceres/accelerate_sparse.h"
-
 #include <algorithm>
 #include <string>
 #include <vector>
 
+#include "ceres/accelerate_sparse.h"
 #include "ceres/compressed_col_sparse_matrix_utils.h"
 #include "ceres/compressed_row_sparse_matrix.h"
 #include "ceres/triplet_sparse_matrix.h"
 #include "glog/logging.h"
 
-#define CASESTR(x) case x: return #x
+#define CASESTR(x) \
+  case x:          \
+    return #x
 
 namespace ceres {
 namespace internal {
@@ -68,7 +69,7 @@ const char* SparseStatusToString(SparseStatus_t status) {
 // aligned to kAccelerateRequiredAlignment and returns a pointer to the
 // aligned start.
 void* ResizeForAccelerateAlignment(const size_t required_size,
-                                   std::vector<uint8_t> *workspace) {
+                                   std::vector<uint8_t>* workspace) {
   // As per the Accelerate documentation, all workspace memory passed to the
   // sparse solver functions must be 16-byte aligned.
   constexpr int kAccelerateRequiredAlignment = 16;
@@ -80,29 +81,28 @@ void* ResizeForAccelerateAlignment(const size_t required_size,
   size_t size_from_aligned_start = workspace->size();
   void* aligned_solve_workspace_start =
       reinterpret_cast<void*>(workspace->data());
-  aligned_solve_workspace_start =
-      std::align(kAccelerateRequiredAlignment,
-                 required_size,
-                 aligned_solve_workspace_start,
-                 size_from_aligned_start);
+  aligned_solve_workspace_start = std::align(kAccelerateRequiredAlignment,
+                                             required_size,
+                                             aligned_solve_workspace_start,
+                                             size_from_aligned_start);
   CHECK(aligned_solve_workspace_start != nullptr)
       << "required_size: " << required_size
       << ", workspace size: " << workspace->size();
   return aligned_solve_workspace_start;
 }
 
-template<typename Scalar>
+template <typename Scalar>
 void AccelerateSparse<Scalar>::Solve(NumericFactorization* numeric_factor,
                                      DenseVector* rhs_and_solution) {
   // From SparseSolve() documentation in Solve.h
-  const int required_size =
-      numeric_factor->solveWorkspaceRequiredStatic +
-      numeric_factor->solveWorkspaceRequiredPerRHS;
-  SparseSolve(*numeric_factor, *rhs_and_solution,
+  const int required_size = numeric_factor->solveWorkspaceRequiredStatic +
+                            numeric_factor->solveWorkspaceRequiredPerRHS;
+  SparseSolve(*numeric_factor,
+              *rhs_and_solution,
               ResizeForAccelerateAlignment(required_size, &solve_workspace_));
 }
 
-template<typename Scalar>
+template <typename Scalar>
 typename AccelerateSparse<Scalar>::ASSparseMatrix
 AccelerateSparse<Scalar>::CreateSparseMatrixTransposeView(
     CompressedRowSparseMatrix* A) {
@@ -112,7 +112,7 @@ AccelerateSparse<Scalar>::CreateSparseMatrixTransposeView(
   //
   // Accelerate's columnStarts is a long*, not an int*.  These types might be
   // different (e.g. ARM on iOS) so always make a copy.
-  column_starts_.resize(A->num_rows() +1); // +1 for final column length.
+  column_starts_.resize(A->num_rows() + 1);  // +1 for final column length.
   std::copy_n(A->rows(), column_starts_.size(), &column_starts_[0]);
 
   ASSparseMatrix At;
@@ -136,29 +136,31 @@ AccelerateSparse<Scalar>::CreateSparseMatrixTransposeView(
   return At;
 }
 
-template<typename Scalar>
+template <typename Scalar>
 typename AccelerateSparse<Scalar>::SymbolicFactorization
 AccelerateSparse<Scalar>::AnalyzeCholesky(ASSparseMatrix* A) {
   return SparseFactor(SparseFactorizationCholesky, A->structure);
 }
 
-template<typename Scalar>
+template <typename Scalar>
 typename AccelerateSparse<Scalar>::NumericFactorization
 AccelerateSparse<Scalar>::Cholesky(ASSparseMatrix* A,
                                    SymbolicFactorization* symbolic_factor) {
   return SparseFactor(*symbolic_factor, *A);
 }
 
-template<typename Scalar>
+template <typename Scalar>
 void AccelerateSparse<Scalar>::Cholesky(ASSparseMatrix* A,
                                         NumericFactorization* numeric_factor) {
   // From SparseRefactor() documentation in Solve.h
-  const int required_size = std::is_same<Scalar, double>::value
-      ? numeric_factor->symbolicFactorization.workspaceSize_Double
-      : numeric_factor->symbolicFactorization.workspaceSize_Float;
-  return SparseRefactor(*A, numeric_factor,
-                        ResizeForAccelerateAlignment(required_size,
-                                                     &factorization_workspace_));
+  const int required_size =
+      std::is_same<Scalar, double>::value
+          ? numeric_factor->symbolicFactorization.workspaceSize_Double
+          : numeric_factor->symbolicFactorization.workspaceSize_Float;
+  return SparseRefactor(
+      *A,
+      numeric_factor,
+      ResizeForAccelerateAlignment(required_size, &factorization_workspace_));
 }
 
 // Instantiate only for the specific template types required/supported s/t the
@@ -166,34 +168,33 @@ void AccelerateSparse<Scalar>::Cholesky(ASSparseMatrix* A,
 template class AccelerateSparse<double>;
 template class AccelerateSparse<float>;
 
-template<typename Scalar>
-std::unique_ptr<SparseCholesky>
-AppleAccelerateCholesky<Scalar>::Create(OrderingType ordering_type) {
+template <typename Scalar>
+std::unique_ptr<SparseCholesky> AppleAccelerateCholesky<Scalar>::Create(
+    OrderingType ordering_type) {
   return std::unique_ptr<SparseCholesky>(
       new AppleAccelerateCholesky<Scalar>(ordering_type));
 }
 
-template<typename Scalar>
+template <typename Scalar>
 AppleAccelerateCholesky<Scalar>::AppleAccelerateCholesky(
     const OrderingType ordering_type)
     : ordering_type_(ordering_type) {}
 
-template<typename Scalar>
+template <typename Scalar>
 AppleAccelerateCholesky<Scalar>::~AppleAccelerateCholesky() {
   FreeSymbolicFactorization();
   FreeNumericFactorization();
 }
 
-template<typename Scalar>
+template <typename Scalar>
 CompressedRowSparseMatrix::StorageType
 AppleAccelerateCholesky<Scalar>::StorageType() const {
   return CompressedRowSparseMatrix::LOWER_TRIANGULAR;
 }
 
-template<typename Scalar>
-LinearSolverTerminationType
-AppleAccelerateCholesky<Scalar>::Factorize(CompressedRowSparseMatrix* lhs,
-                                           std::string* message) {
+template <typename Scalar>
+LinearSolverTerminationType AppleAccelerateCholesky<Scalar>::Factorize(
+    CompressedRowSparseMatrix* lhs, std::string* message) {
   CHECK_EQ(lhs->storage_type(), StorageType());
   if (lhs == NULL) {
     *message = "Failure: Input lhs is NULL.";
@@ -234,11 +235,9 @@ AppleAccelerateCholesky<Scalar>::Factorize(CompressedRowSparseMatrix* lhs,
   return LINEAR_SOLVER_SUCCESS;
 }
 
-template<typename Scalar>
-LinearSolverTerminationType
-AppleAccelerateCholesky<Scalar>::Solve(const double* rhs,
-                                       double* solution,
-                                       std::string* message) {
+template <typename Scalar>
+LinearSolverTerminationType AppleAccelerateCholesky<Scalar>::Solve(
+    const double* rhs, double* solution, std::string* message) {
   CHECK_EQ(numeric_factor_->status, SparseStatusOK)
       << "Solve called without a call to Factorize first ("
       << SparseStatusToString(numeric_factor_->status) << ").";
@@ -262,7 +261,7 @@ AppleAccelerateCholesky<Scalar>::Solve(const double* rhs,
   return LINEAR_SOLVER_SUCCESS;
 }
 
-template<typename Scalar>
+template <typename Scalar>
 void AppleAccelerateCholesky<Scalar>::FreeSymbolicFactorization() {
   if (symbolic_factor_) {
     SparseCleanup(*symbolic_factor_);
@@ -270,7 +269,7 @@ void AppleAccelerateCholesky<Scalar>::FreeSymbolicFactorization() {
   }
 }
 
-template<typename Scalar>
+template <typename Scalar>
 void AppleAccelerateCholesky<Scalar>::FreeNumericFactorization() {
   if (numeric_factor_) {
     SparseCleanup(*numeric_factor_);
@@ -283,7 +282,7 @@ void AppleAccelerateCholesky<Scalar>::FreeNumericFactorization() {
 template class AppleAccelerateCholesky<double>;
 template class AppleAccelerateCholesky<float>;
 
-}
-}
+}  // namespace internal
+}  // namespace ceres
 
 #endif  // CERES_NO_ACCELERATE_SPARSE

extern/ceres/internal/ceres/accelerate_sparse.h

@@ -40,9 +40,9 @@
 #include <string>
 #include <vector>
 
+#include "Accelerate.h"
 #include "ceres/linear_solver.h"
 #include "ceres/sparse_cholesky.h"
-#include "Accelerate.h"
 
 namespace ceres {
 namespace internal {
@@ -50,11 +50,10 @@ namespace internal {
 class CompressedRowSparseMatrix;
 class TripletSparseMatrix;
 
-template<typename Scalar>
-struct SparseTypesTrait {
-};
+template <typename Scalar>
+struct SparseTypesTrait {};
 
-template<>
+template <>
 struct SparseTypesTrait<double> {
   typedef DenseVector_Double DenseVector;
   typedef SparseMatrix_Double SparseMatrix;
@@ -62,7 +61,7 @@ struct SparseTypesTrait<double> {
   typedef SparseOpaqueFactorization_Double NumericFactorization;
 };
 
-template<>
+template <>
 struct SparseTypesTrait<float> {
   typedef DenseVector_Float DenseVector;
   typedef SparseMatrix_Float SparseMatrix;
@@ -70,14 +69,16 @@ struct SparseTypesTrait<float> {
   typedef SparseOpaqueFactorization_Float NumericFactorization;
 };
 
-template<typename Scalar>
+template <typename Scalar>
 class AccelerateSparse {
  public:
   using DenseVector = typename SparseTypesTrait<Scalar>::DenseVector;
   // Use ASSparseMatrix to avoid collision with ceres::internal::SparseMatrix.
   using ASSparseMatrix = typename SparseTypesTrait<Scalar>::SparseMatrix;
-  using SymbolicFactorization = typename SparseTypesTrait<Scalar>::SymbolicFactorization;
-  using NumericFactorization = typename SparseTypesTrait<Scalar>::NumericFactorization;
+  using SymbolicFactorization =
+      typename SparseTypesTrait<Scalar>::SymbolicFactorization;
+  using NumericFactorization =
+      typename SparseTypesTrait<Scalar>::NumericFactorization;
 
   // Solves a linear system given its symbolic (reference counted within
   // NumericFactorization) and numeric factorization.
@@ -109,7 +110,7 @@ class AccelerateSparse {
 
 // An implementation of SparseCholesky interface using Apple's Accelerate
 // framework.
-template<typename Scalar>
+template <typename Scalar>
 class AppleAccelerateCholesky : public SparseCholesky {
  public:
   // Factory
@@ -122,7 +123,7 @@ class AppleAccelerateCholesky : public SparseCholesky {
                                         std::string* message) final;
   LinearSolverTerminationType Solve(const double* rhs,
                                     double* solution,
-                                    std::string* message) final ;
+                                    std::string* message) final;
 
  private:
   AppleAccelerateCholesky(const OrderingType ordering_type);
@@ -132,15 +133,15 @@ class AppleAccelerateCholesky : public SparseCholesky {
   const OrderingType ordering_type_;
   AccelerateSparse<Scalar> as_;
   std::unique_ptr<typename AccelerateSparse<Scalar>::SymbolicFactorization>
-  symbolic_factor_;
+      symbolic_factor_;
   std::unique_ptr<typename AccelerateSparse<Scalar>::NumericFactorization>
-  numeric_factor_;
+      numeric_factor_;
   // Copy of rhs/solution if Scalar != double (necessitating a copy).
   Eigen::Matrix<Scalar, Eigen::Dynamic, 1> scalar_rhs_and_solution_;
 };
 
-}
-}
+}  // namespace internal
+}  // namespace ceres
 
 #endif  // CERES_NO_ACCELERATE_SPARSE
 

extern/ceres/internal/ceres/array_utils.cc

@@ -35,6 +35,7 @@
 #include <cstddef>
 #include <string>
 #include <vector>
+
 #include "ceres/stringprintf.h"
 #include "ceres/types.h"
 namespace ceres {
@@ -45,7 +46,7 @@ using std::string;
 bool IsArrayValid(const int size, const double* x) {
   if (x != NULL) {
     for (int i = 0; i < size; ++i) {
-      if (!std::isfinite(x[i]) || (x[i] == kImpossibleValue))  {
+      if (!std::isfinite(x[i]) || (x[i] == kImpossibleValue)) {
         return false;
       }
     }
@@ -59,7 +60,7 @@ int FindInvalidValue(const int size, const double* x) {
   }
 
   for (int i = 0; i < size; ++i) {
-    if (!std::isfinite(x[i]) || (x[i] == kImpossibleValue))  {
+    if (!std::isfinite(x[i]) || (x[i] == kImpossibleValue)) {
       return i;
     }
   }
@@ -92,14 +93,13 @@ void AppendArrayToString(const int size, const double* x, string* result) {
 void MapValuesToContiguousRange(const int size, int* array) {
   std::vector<int> unique_values(array, array + size);
   std::sort(unique_values.begin(), unique_values.end());
-  unique_values.erase(std::unique(unique_values.begin(),
-                                  unique_values.end()),
+  unique_values.erase(std::unique(unique_values.begin(), unique_values.end()),
                       unique_values.end());
 
   for (int i = 0; i < size; ++i) {
-    array[i] = std::lower_bound(unique_values.begin(),
-                                unique_values.end(),
-                                array[i]) - unique_values.begin();
+    array[i] =
+        std::lower_bound(unique_values.begin(), unique_values.end(), array[i]) -
+        unique_values.begin();
   }
 }
 

extern/ceres/internal/ceres/array_utils.h

@@ -44,6 +44,7 @@
 #define CERES_INTERNAL_ARRAY_UTILS_H_
 
 #include <string>
+
 #include "ceres/internal/port.h"
 
 namespace ceres {
@@ -51,20 +52,22 @@ namespace internal {
 
 // Fill the array x with an impossible value that the user code is
 // never expected to compute.
-void InvalidateArray(int size, double* x);
+CERES_EXPORT_INTERNAL void InvalidateArray(int size, double* x);
 
 // Check if all the entries of the array x are valid, i.e. all the
 // values in the array should be finite and none of them should be
 // equal to the "impossible" value used by InvalidateArray.
-bool IsArrayValid(int size, const double* x);
+CERES_EXPORT_INTERNAL bool IsArrayValid(int size, const double* x);
 
 // If the array contains an invalid value, return the index for it,
 // otherwise return size.
-int FindInvalidValue(const int size, const double* x);
+CERES_EXPORT_INTERNAL int FindInvalidValue(const int size, const double* x);
 
 // Utility routine to print an array of doubles to a string. If the
 // array pointer is NULL, it is treated as an array of zeros.
-void AppendArrayToString(const int size, const double* x, std::string* result);
+CERES_EXPORT_INTERNAL void AppendArrayToString(const int size,
+                                               const double* x,
+                                               std::string* result);
 
 // This routine takes an array of integer values, sorts and uniques
 // them and then maps each value in the array to its position in the
@@ -79,7 +82,7 @@ void AppendArrayToString(const int size, const double* x, std::string* result);
 // gets mapped to
 //
 // [1 0 2 3 0 1 3]
-void MapValuesToContiguousRange(int size, int* array);
+CERES_EXPORT_INTERNAL void MapValuesToContiguousRange(int size, int* array);
 
 }  // namespace internal
 }  // namespace ceres

extern/ceres/internal/ceres/blas.cc

@@ -29,6 +29,7 @@
 // Author: sameeragarwal@google.com (Sameer Agarwal)
 
 #include "ceres/blas.h"
+
 #include "ceres/internal/port.h"
 #include "glog/logging.h"
 

extern/ceres/internal/ceres/block_evaluate_preparer.cc

@@ -31,6 +31,7 @@
 #include "ceres/block_evaluate_preparer.h"
 
 #include <vector>
+
 #include "ceres/block_sparse_matrix.h"
 #include "ceres/casts.h"
 #include "ceres/parameter_block.h"
@@ -53,10 +54,8 @@ void BlockEvaluatePreparer::Prepare(const ResidualBlock* residual_block,
                                     double** jacobians) {
   // If the overall jacobian is not available, use the scratch space.
   if (jacobian == NULL) {
-    scratch_evaluate_preparer_.Prepare(residual_block,
-                                       residual_block_index,
-                                       jacobian,
-                                       jacobians);
+    scratch_evaluate_preparer_.Prepare(
+        residual_block, residual_block_index, jacobian, jacobians);
     return;
   }
 

extern/ceres/internal/ceres/block_jacobi_preconditioner.cc

@@ -30,9 +30,9 @@
 
 #include "ceres/block_jacobi_preconditioner.h"
 
+#include "ceres/block_random_access_diagonal_matrix.h"
 #include "ceres/block_sparse_matrix.h"
 #include "ceres/block_structure.h"
-#include "ceres/block_random_access_diagonal_matrix.h"
 #include "ceres/casts.h"
 #include "ceres/internal/eigen.h"
 
@@ -65,13 +65,11 @@ bool BlockJacobiPreconditioner::UpdateImpl(const BlockSparseMatrix& A,
       const int col_block_size = bs->cols[block_id].size;
 
       int r, c, row_stride, col_stride;
-      CellInfo* cell_info = m_->GetCell(block_id, block_id,
-                                        &r, &c,
-                                        &row_stride, &col_stride);
+      CellInfo* cell_info =
+          m_->GetCell(block_id, block_id, &r, &c, &row_stride, &col_stride);
       MatrixRef m(cell_info->values, row_stride, col_stride);
-      ConstMatrixRef b(values + cells[j].position,
-                       row_block_size,
-                       col_block_size);
+      ConstMatrixRef b(
+          values + cells[j].position, row_block_size, col_block_size);
       m.block(r, c, col_block_size, col_block_size) += b.transpose() * b;
     }
   }
@@ -82,9 +80,7 @@ bool BlockJacobiPreconditioner::UpdateImpl(const BlockSparseMatrix& A,
     for (int i = 0; i < bs->cols.size(); ++i) {
       const int block_size = bs->cols[i].size;
       int r, c, row_stride, col_stride;
-      CellInfo* cell_info = m_->GetCell(i, i,
-                                        &r, &c,
-                                        &row_stride, &col_stride);
+      CellInfo* cell_info = m_->GetCell(i, i, &r, &c, &row_stride, &col_stride);
       MatrixRef m(cell_info->values, row_stride, col_stride);
       m.block(r, c, block_size, block_size).diagonal() +=
           ConstVectorRef(D + position, block_size).array().square().matrix();

extern/ceres/internal/ceres/block_jacobi_preconditioner.h

@@ -32,7 +32,9 @@
 #define CERES_INTERNAL_BLOCK_JACOBI_PRECONDITIONER_H_
 
 #include <memory>
+
 #include "ceres/block_random_access_diagonal_matrix.h"
+#include "ceres/internal/port.h"
 #include "ceres/preconditioner.h"
 
 namespace ceres {
@@ -51,7 +53,8 @@ struct CompressedRowBlockStructure;
 // update the matrix by running Update(A, D). The values of the matrix A are
 // inspected to construct the preconditioner. The vector D is applied as the
 // D^TD diagonal term.
-class BlockJacobiPreconditioner : public BlockSparseMatrixPreconditioner {
+class CERES_EXPORT_INTERNAL BlockJacobiPreconditioner
+    : public BlockSparseMatrixPreconditioner {
  public:
   // A must remain valid while the BlockJacobiPreconditioner is.
   explicit BlockJacobiPreconditioner(const BlockSparseMatrix& A);

extern/ceres/internal/ceres/block_jacobian_writer.cc

@@ -32,11 +32,11 @@
 
 #include "ceres/block_evaluate_preparer.h"
 #include "ceres/block_sparse_matrix.h"
+#include "ceres/internal/eigen.h"
+#include "ceres/internal/port.h"
 #include "ceres/parameter_block.h"
 #include "ceres/program.h"
 #include "ceres/residual_block.h"
-#include "ceres/internal/eigen.h"
-#include "ceres/internal/port.h"
 
 namespace ceres {
 namespace internal {

extern/ceres/internal/ceres/block_jacobian_writer.h

@@ -39,6 +39,7 @@
 #define CERES_INTERNAL_BLOCK_JACOBIAN_WRITER_H_
 
 #include <vector>
+
 #include "ceres/evaluator.h"
 #include "ceres/internal/port.h"
 
@@ -52,8 +53,7 @@ class SparseMatrix;
 // TODO(sameeragarwal): This class needs documemtation.
 class BlockJacobianWriter {
  public:
-  BlockJacobianWriter(const Evaluator::Options& options,
-                      Program* program);
+  BlockJacobianWriter(const Evaluator::Options& options, Program* program);
 
   // JacobianWriter interface.
 

extern/ceres/internal/ceres/block_random_access_dense_matrix.cc

@@ -31,6 +31,7 @@
 #include "ceres/block_random_access_dense_matrix.h"
 
 #include <vector>
+
 #include "ceres/internal/eigen.h"
 #include "glog/logging.h"
 
@@ -59,8 +60,7 @@ BlockRandomAccessDenseMatrix::BlockRandomAccessDenseMatrix(
 
 // Assume that the user does not hold any locks on any cell blocks
 // when they are calling SetZero.
-BlockRandomAccessDenseMatrix::~BlockRandomAccessDenseMatrix() {
-}
+BlockRandomAccessDenseMatrix::~BlockRandomAccessDenseMatrix() {}
 
 CellInfo* BlockRandomAccessDenseMatrix::GetCell(const int row_block_id,
                                                 const int col_block_id,

extern/ceres/internal/ceres/block_random_access_dense_matrix.h

@@ -31,11 +31,10 @@
 #ifndef CERES_INTERNAL_BLOCK_RANDOM_ACCESS_DENSE_MATRIX_H_
 #define CERES_INTERNAL_BLOCK_RANDOM_ACCESS_DENSE_MATRIX_H_
 
-#include "ceres/block_random_access_matrix.h"
-
 #include <memory>
 #include <vector>
 
+#include "ceres/block_random_access_matrix.h"
 #include "ceres/internal/port.h"
 
 namespace ceres {
@@ -51,7 +50,8 @@ namespace internal {
 // pair.
 //
 // ReturnCell is a nop.
-class BlockRandomAccessDenseMatrix : public BlockRandomAccessMatrix {
+class CERES_EXPORT_INTERNAL BlockRandomAccessDenseMatrix
+    : public BlockRandomAccessMatrix {
  public:
   // blocks is a vector of block sizes. The resulting matrix has
   // blocks.size() * blocks.size() cells.

extern/ceres/internal/ceres/block_random_access_diagonal_matrix.cc

@@ -63,9 +63,8 @@ BlockRandomAccessDiagonalMatrix::BlockRandomAccessDiagonalMatrix(
     num_nonzeros += blocks_[i] * blocks_[i];
   }
 
-  VLOG(1) << "Matrix Size [" << num_cols
-          << "," << num_cols
-          << "] " << num_nonzeros;
+  VLOG(1) << "Matrix Size [" << num_cols << "," << num_cols << "] "
+          << num_nonzeros;
 
   tsm_.reset(new TripletSparseMatrix(num_cols, num_cols, num_nonzeros));
   tsm_->set_num_nonzeros(num_nonzeros);
@@ -116,8 +115,7 @@ CellInfo* BlockRandomAccessDiagonalMatrix::GetCell(int row_block_id,
 // when they are calling SetZero.
 void BlockRandomAccessDiagonalMatrix::SetZero() {
   if (tsm_->num_nonzeros()) {
-    VectorRef(tsm_->mutable_values(),
-              tsm_->num_nonzeros()).setZero();
+    VectorRef(tsm_->mutable_values(), tsm_->num_nonzeros()).setZero();
   }
 }
 
@@ -126,11 +124,8 @@ void BlockRandomAccessDiagonalMatrix::Invert() {
   for (int i = 0; i < blocks_.size(); ++i) {
     const int block_size = blocks_[i];
     MatrixRef block(values, block_size, block_size);
-    block =
-        block
-        .selfadjointView<Eigen::Upper>()
-        .llt()
-        .solve(Matrix::Identity(block_size, block_size));
+    block = block.selfadjointView<Eigen::Upper>().llt().solve(
+        Matrix::Identity(block_size, block_size));
     values += block_size * block_size;
   }
 }

extern/ceres/internal/ceres/block_random_access_diagonal_matrix.h

@@ -46,11 +46,13 @@ namespace internal {
 
 // A thread safe block diagonal matrix implementation of
 // BlockRandomAccessMatrix.
-class BlockRandomAccessDiagonalMatrix : public BlockRandomAccessMatrix {
+class CERES_EXPORT_INTERNAL BlockRandomAccessDiagonalMatrix
+    : public BlockRandomAccessMatrix {
  public:
   // blocks is an array of block sizes.
   explicit BlockRandomAccessDiagonalMatrix(const std::vector<int>& blocks);
-  BlockRandomAccessDiagonalMatrix(const BlockRandomAccessDiagonalMatrix&) = delete;
+  BlockRandomAccessDiagonalMatrix(const BlockRandomAccessDiagonalMatrix&) =
+      delete;
   void operator=(const BlockRandomAccessDiagonalMatrix&) = delete;
 
   // The destructor is not thread safe. It assumes that no one is

extern/ceres/internal/ceres/block_random_access_matrix.cc

@@ -33,8 +33,7 @@
 namespace ceres {
 namespace internal {
 
-BlockRandomAccessMatrix::~BlockRandomAccessMatrix() {
-}
+BlockRandomAccessMatrix::~BlockRandomAccessMatrix() {}
 
 }  // namespace internal
 }  // namespace ceres

extern/ceres/internal/ceres/block_random_access_matrix.h

@@ -35,6 +35,8 @@
 
 #include <mutex>
 
+#include "ceres/internal/port.h"
+
 namespace ceres {
 namespace internal {
 
@@ -91,7 +93,7 @@ struct CellInfo {
   std::mutex m;
 };
 
-class BlockRandomAccessMatrix {
+class CERES_EXPORT_INTERNAL BlockRandomAccessMatrix {
  public:
   virtual ~BlockRandomAccessMatrix();
 

extern/ceres/internal/ceres/block_random_access_sparse_matrix.cc

@@ -50,10 +50,8 @@ using std::set;
 using std::vector;
 
 BlockRandomAccessSparseMatrix::BlockRandomAccessSparseMatrix(
-    const vector<int>& blocks,
-    const set<pair<int, int>>& block_pairs)
-    : kMaxRowBlocks(10 * 1000 * 1000),
-      blocks_(blocks) {
+    const vector<int>& blocks, const set<pair<int, int>>& block_pairs)
+    : kMaxRowBlocks(10 * 1000 * 1000), blocks_(blocks) {
   CHECK_LT(blocks.size(), kMaxRowBlocks);
 
   // Build the row/column layout vector and count the number of scalar
@@ -75,9 +73,8 @@ BlockRandomAccessSparseMatrix::BlockRandomAccessSparseMatrix(
     num_nonzeros += row_block_size * col_block_size;
   }
 
-  VLOG(1) << "Matrix Size [" << num_cols
-          << "," << num_cols
-          << "] " << num_nonzeros;
+  VLOG(1) << "Matrix Size [" << num_cols << "," << num_cols << "] "
+          << num_nonzeros;
 
   tsm_.reset(new TripletSparseMatrix(num_cols, num_cols, num_nonzeros));
   tsm_->set_num_nonzeros(num_nonzeros);
@@ -105,11 +102,11 @@ BlockRandomAccessSparseMatrix::BlockRandomAccessSparseMatrix(
         layout_[IntPairToLong(row_block_id, col_block_id)]->values - values;
     for (int r = 0; r < row_block_size; ++r) {
       for (int c = 0; c < col_block_size; ++c, ++pos) {
-          rows[pos] = block_positions_[row_block_id] + r;
-          cols[pos] = block_positions_[col_block_id] + c;
-          values[pos] = 1.0;
-          DCHECK_LT(rows[pos], tsm_->num_rows());
-          DCHECK_LT(cols[pos], tsm_->num_rows());
+        rows[pos] = block_positions_[row_block_id] + r;
+        cols[pos] = block_positions_[col_block_id] + c;
+        values[pos] = 1.0;
+        DCHECK_LT(rows[pos], tsm_->num_rows());
+        DCHECK_LT(cols[pos], tsm_->num_rows());
       }
     }
   }
@@ -129,7 +126,7 @@ CellInfo* BlockRandomAccessSparseMatrix::GetCell(int row_block_id,
                                                  int* col,
                                                  int* row_stride,
                                                  int* col_stride) {
-  const LayoutType::iterator it  =
+  const LayoutType::iterator it =
       layout_.find(IntPairToLong(row_block_id, col_block_id));
   if (it == layout_.end()) {
     return NULL;
@@ -147,8 +144,7 @@ CellInfo* BlockRandomAccessSparseMatrix::GetCell(int row_block_id,
 // when they are calling SetZero.
 void BlockRandomAccessSparseMatrix::SetZero() {
   if (tsm_->num_nonzeros()) {
-    VectorRef(tsm_->mutable_values(),
-              tsm_->num_nonzeros()).setZero();
+    VectorRef(tsm_->mutable_values(), tsm_->num_nonzeros()).setZero();
   }
 }
 
@@ -164,7 +160,9 @@ void BlockRandomAccessSparseMatrix::SymmetricRightMultiply(const double* x,
     const int col_block_pos = block_positions_[col];
 
     MatrixVectorMultiply<Eigen::Dynamic, Eigen::Dynamic, 1>(
-        cell_position_and_data.second, row_block_size, col_block_size,
+        cell_position_and_data.second,
+        row_block_size,
+        col_block_size,
         x + col_block_pos,
         y + row_block_pos);
 
@@ -174,7 +172,9 @@ void BlockRandomAccessSparseMatrix::SymmetricRightMultiply(const double* x,
     // triangular multiply also.
     if (row != col) {
       MatrixTransposeVectorMultiply<Eigen::Dynamic, Eigen::Dynamic, 1>(
-          cell_position_and_data.second, row_block_size, col_block_size,
+          cell_position_and_data.second,
+          row_block_size,
+          col_block_size,
           x + row_block_pos,
           y + col_block_pos);
     }

extern/ceres/internal/ceres/block_random_access_sparse_matrix.h

@@ -39,10 +39,10 @@
 #include <vector>
 
 #include "ceres/block_random_access_matrix.h"
-#include "ceres/triplet_sparse_matrix.h"
 #include "ceres/internal/port.h"
-#include "ceres/types.h"
 #include "ceres/small_blas.h"
+#include "ceres/triplet_sparse_matrix.h"
+#include "ceres/types.h"
 
 namespace ceres {
 namespace internal {
@@ -51,7 +51,8 @@ namespace internal {
 // BlockRandomAccessMatrix. Internally a TripletSparseMatrix is used
 // for doing the actual storage. This class augments this matrix with
 // an unordered_map that allows random read/write access.
-class BlockRandomAccessSparseMatrix : public BlockRandomAccessMatrix {
+class CERES_EXPORT_INTERNAL BlockRandomAccessSparseMatrix
+    : public BlockRandomAccessMatrix {
  public:
   // blocks is an array of block sizes. block_pairs is a set of
   // <row_block_id, col_block_id> pairs to identify the non-zero cells
@@ -110,7 +111,7 @@ class BlockRandomAccessSparseMatrix : public BlockRandomAccessMatrix {
 
   // A mapping from <row_block_id, col_block_id> to the position in
   // the values array of tsm_ where the block is stored.
-  typedef std::unordered_map<long int, CellInfo* > LayoutType;
+  typedef std::unordered_map<long int, CellInfo*> LayoutType;
   LayoutType layout_;
 
   // In order traversal of contents of the matrix. This allows us to

extern/ceres/internal/ceres/block_sparse_matrix.cc

@@ -30,9 +30,10 @@
 
 #include "ceres/block_sparse_matrix.h"
 
-#include <cstddef>
 #include <algorithm>
+#include <cstddef>
 #include <vector>
+
 #include "ceres/block_structure.h"
 #include "ceres/internal/eigen.h"
 #include "ceres/random.h"
@@ -77,8 +78,8 @@ BlockSparseMatrix::BlockSparseMatrix(
   CHECK_GE(num_rows_, 0);
   CHECK_GE(num_cols_, 0);
   CHECK_GE(num_nonzeros_, 0);
-  VLOG(2) << "Allocating values array with "
-          << num_nonzeros_ * sizeof(double) << " bytes.";  // NOLINT
+  VLOG(2) << "Allocating values array with " << num_nonzeros_ * sizeof(double)
+          << " bytes.";  // NOLINT
   values_.reset(new double[num_nonzeros_]);
   max_num_nonzeros_ = num_nonzeros_;
   CHECK(values_ != nullptr);
@@ -88,7 +89,7 @@ void BlockSparseMatrix::SetZero() {
   std::fill(values_.get(), values_.get() + num_nonzeros_, 0.0);
 }
 
-void BlockSparseMatrix::RightMultiply(const double* x,  double* y) const {
+void BlockSparseMatrix::RightMultiply(const double* x, double* y) const {
   CHECK(x != nullptr);
   CHECK(y != nullptr);
 
@@ -101,7 +102,9 @@ void BlockSparseMatrix::RightMultiply(const double* x,  double* y) const {
       int col_block_size = block_structure_->cols[col_block_id].size;
       int col_block_pos = block_structure_->cols[col_block_id].position;
       MatrixVectorMultiply<Eigen::Dynamic, Eigen::Dynamic, 1>(
-          values_.get() + cells[j].position, row_block_size, col_block_size,
+          values_.get() + cells[j].position,
+          row_block_size,
+          col_block_size,
           x + col_block_pos,
           y + row_block_pos);
     }
@@ -121,7 +124,9 @@ void BlockSparseMatrix::LeftMultiply(const double* x, double* y) const {
       int col_block_size = block_structure_->cols[col_block_id].size;
       int col_block_pos = block_structure_->cols[col_block_id].position;
       MatrixTransposeVectorMultiply<Eigen::Dynamic, Eigen::Dynamic, 1>(
-          values_.get() + cells[j].position, row_block_size, col_block_size,
+          values_.get() + cells[j].position,
+          row_block_size,
+          col_block_size,
           x + row_block_pos,
           y + col_block_pos);
     }
@@ -138,8 +143,8 @@ void BlockSparseMatrix::SquaredColumnNorm(double* x) const {
       int col_block_id = cells[j].block_id;
       int col_block_size = block_structure_->cols[col_block_id].size;
       int col_block_pos = block_structure_->cols[col_block_id].position;
-      const MatrixRef m(values_.get() + cells[j].position,
-                        row_block_size, col_block_size);
+      const MatrixRef m(
+          values_.get() + cells[j].position, row_block_size, col_block_size);
       VectorRef(x + col_block_pos, col_block_size) += m.colwise().squaredNorm();
     }
   }
@@ -155,8 +160,8 @@ void BlockSparseMatrix::ScaleColumns(const double* scale) {
       int col_block_id = cells[j].block_id;
       int col_block_size = block_structure_->cols[col_block_id].size;
       int col_block_pos = block_structure_->cols[col_block_id].position;
-      MatrixRef m(values_.get() + cells[j].position,
-                        row_block_size, col_block_size);
+      MatrixRef m(
+          values_.get() + cells[j].position, row_block_size, col_block_size);
       m *= ConstVectorRef(scale + col_block_pos, col_block_size).asDiagonal();
     }
   }
@@ -178,8 +183,8 @@ void BlockSparseMatrix::ToDenseMatrix(Matrix* dense_matrix) const {
       int col_block_size = block_structure_->cols[col_block_id].size;
       int col_block_pos = block_structure_->cols[col_block_id].position;
       int jac_pos = cells[j].position;
-      m.block(row_block_pos, col_block_pos, row_block_size, col_block_size)
-          += MatrixRef(values_.get() + jac_pos, row_block_size, col_block_size);
+      m.block(row_block_pos, col_block_pos, row_block_size, col_block_size) +=
+          MatrixRef(values_.get() + jac_pos, row_block_size, col_block_size);
     }
   }
 }
@@ -201,7 +206,7 @@ void BlockSparseMatrix::ToTripletSparseMatrix(
       int col_block_size = block_structure_->cols[col_block_id].size;
       int col_block_pos = block_structure_->cols[col_block_id].position;
       int jac_pos = cells[j].position;
-       for (int r = 0; r < row_block_size; ++r) {
+      for (int r = 0; r < row_block_size; ++r) {
         for (int c = 0; c < col_block_size; ++c, ++jac_pos) {
           matrix->mutable_rows()[jac_pos] = row_block_pos + r;
           matrix->mutable_cols()[jac_pos] = col_block_pos + c;
@@ -215,8 +220,7 @@ void BlockSparseMatrix::ToTripletSparseMatrix(
 
 // Return a pointer to the block structure. We continue to hold
 // ownership of the object though.
-const CompressedRowBlockStructure* BlockSparseMatrix::block_structure()
-    const {
+const CompressedRowBlockStructure* BlockSparseMatrix::block_structure() const {
   return block_structure_.get();
 }
 
@@ -233,7 +237,8 @@ void BlockSparseMatrix::ToTextFile(FILE* file) const {
       int jac_pos = cells[j].position;
       for (int r = 0; r < row_block_size; ++r) {
         for (int c = 0; c < col_block_size; ++c) {
-          fprintf(file, "% 10d % 10d %17f\n",
+          fprintf(file,
+                  "% 10d % 10d %17f\n",
                   row_block_pos + r,
                   col_block_pos + c,
                   values_[jac_pos++]);
@@ -369,7 +374,6 @@ BlockSparseMatrix* BlockSparseMatrix::CreateRandomMatrix(
     int row_block_position = 0;
     int value_position = 0;
     for (int r = 0; r < options.num_row_blocks; ++r) {
-
       const int delta_block_size =
           Uniform(options.max_row_block_size - options.min_row_block_size);
       const int row_block_size = options.min_row_block_size + delta_block_size;

extern/ceres/internal/ceres/block_sparse_matrix.h

@@ -35,9 +35,11 @@
 #define CERES_INTERNAL_BLOCK_SPARSE_MATRIX_H_
 
 #include <memory>
+
 #include "ceres/block_structure.h"
-#include "ceres/sparse_matrix.h"
 #include "ceres/internal/eigen.h"
+#include "ceres/internal/port.h"
+#include "ceres/sparse_matrix.h"
 
 namespace ceres {
 namespace internal {
@@ -52,7 +54,7 @@ class TripletSparseMatrix;
 //
 //   internal/ceres/block_structure.h
 //
-class BlockSparseMatrix : public SparseMatrix {
+class CERES_EXPORT_INTERNAL BlockSparseMatrix : public SparseMatrix {
  public:
   // Construct a block sparse matrix with a fully initialized
   // CompressedRowBlockStructure objected. The matrix takes over
@@ -77,11 +79,13 @@ class BlockSparseMatrix : public SparseMatrix {
   void ToDenseMatrix(Matrix* dense_matrix) const final;
   void ToTextFile(FILE* file) const final;
 
+  // clang-format off
   int num_rows()         const final { return num_rows_;     }
   int num_cols()         const final { return num_cols_;     }
   int num_nonzeros()     const final { return num_nonzeros_; }
   const double* values() const final { return values_.get(); }
   double* mutable_values()     final { return values_.get(); }
+  // clang-format on
 
   void ToTripletSparseMatrix(TripletSparseMatrix* matrix) const;
   const CompressedRowBlockStructure* block_structure() const;
@@ -94,8 +98,7 @@ class BlockSparseMatrix : public SparseMatrix {
   void DeleteRowBlocks(int delta_row_blocks);
 
   static BlockSparseMatrix* CreateDiagonalMatrix(
-      const double* diagonal,
-      const std::vector<Block>& column_blocks);
+      const double* diagonal, const std::vector<Block>& column_blocks);
 
   struct RandomMatrixOptions {
     int num_row_blocks = 0;

extern/ceres/internal/ceres/block_structure.cc

@@ -35,7 +35,7 @@ namespace internal {
 
 bool CellLessThan(const Cell& lhs, const Cell& rhs) {
   if (lhs.block_id == rhs.block_id) {
-    return (lhs.position  < rhs.position);
+    return (lhs.position < rhs.position);
   }
   return (lhs.block_id < rhs.block_id);
 }

extern/ceres/internal/ceres/block_structure.h

@@ -40,6 +40,7 @@
 
 #include <cstdint>
 #include <vector>
+
 #include "ceres/internal/port.h"
 
 namespace ceres {

extern/ceres/internal/ceres/c_api.cc

@@ -34,9 +34,10 @@
 
 #include "ceres/c_api.h"
 
-#include <vector>
 #include <iostream>
 #include <string>
+#include <vector>
+
 #include "ceres/cost_function.h"
 #include "ceres/loss_function.h"
 #include "ceres/problem.h"
@@ -70,8 +71,7 @@ class CallbackCostFunction : public ceres::CostFunction {
                        int num_residuals,
                        int num_parameter_blocks,
                        int* parameter_block_sizes)
-      : cost_function_(cost_function),
-        user_data_(user_data) {
+      : cost_function_(cost_function), user_data_(user_data) {
     set_num_residuals(num_residuals);
     for (int i = 0; i < num_parameter_blocks; ++i) {
       mutable_parameter_block_sizes()->push_back(parameter_block_sizes[i]);
@@ -81,12 +81,10 @@ class CallbackCostFunction : public ceres::CostFunction {
   virtual ~CallbackCostFunction() {}
 
   bool Evaluate(double const* const* parameters,
-                        double* residuals,
-                        double** jacobians) const final {
-    return (*cost_function_)(user_data_,
-                             const_cast<double**>(parameters),
-                             residuals,
-                             jacobians);
+                double* residuals,
+                double** jacobians) const final {
+    return (*cost_function_)(
+        user_data_, const_cast<double**>(parameters), residuals, jacobians);
   }
 
  private:
@@ -100,7 +98,7 @@ class CallbackLossFunction : public ceres::LossFunction {
  public:
   explicit CallbackLossFunction(ceres_loss_function_t loss_function,
                                 void* user_data)
-    : loss_function_(loss_function), user_data_(user_data) {}
+      : loss_function_(loss_function), user_data_(user_data) {}
   void Evaluate(double sq_norm, double* rho) const final {
     (*loss_function_)(user_data_, sq_norm, rho);
   }
@@ -134,8 +132,8 @@ void ceres_free_stock_loss_function_data(void* loss_function_data) {
 void ceres_stock_loss_function(void* user_data,
                                double squared_norm,
                                double out[3]) {
-  reinterpret_cast<ceres::LossFunction*>(user_data)
-      ->Evaluate(squared_norm, out);
+  reinterpret_cast<ceres::LossFunction*>(user_data)->Evaluate(squared_norm,
+                                                              out);
 }
 
 ceres_residual_block_id_t* ceres_problem_add_residual_block(
@@ -159,16 +157,15 @@ ceres_residual_block_id_t* ceres_problem_add_residual_block(
 
   ceres::LossFunction* callback_loss_function = NULL;
   if (loss_function != NULL) {
-    callback_loss_function = new CallbackLossFunction(loss_function,
-                                                      loss_function_data);
+    callback_loss_function =
+        new CallbackLossFunction(loss_function, loss_function_data);
   }
 
   std::vector<double*> parameter_blocks(parameters,
                                         parameters + num_parameter_blocks);
   return reinterpret_cast<ceres_residual_block_id_t*>(
-      ceres_problem->AddResidualBlock(callback_cost_function,
-                                      callback_loss_function,
-                                      parameter_blocks));
+      ceres_problem->AddResidualBlock(
+          callback_cost_function, callback_loss_function, parameter_blocks));
 }
 
 void ceres_solve(ceres_problem_t* c_problem) {

extern/ceres/internal/ceres/callbacks.cc

@@ -28,8 +28,10 @@
 //
 // Author: sameeragarwal@google.com (Sameer Agarwal)
 
-#include <iostream>  // NO LINT
 #include "ceres/callbacks.h"
+
+#include <iostream>  // NO LINT
+
 #include "ceres/program.h"
 #include "ceres/stringprintf.h"
 #include "glog/logging.h"
@@ -76,8 +78,7 @@ CallbackReturnType GradientProblemSolverStateUpdatingCallback::operator()(
 
 LoggingCallback::LoggingCallback(const MinimizerType minimizer_type,
                                  const bool log_to_stdout)
-    : minimizer_type(minimizer_type),
-      log_to_stdout_(log_to_stdout) {}
+    : minimizer_type(minimizer_type), log_to_stdout_(log_to_stdout) {}
 
 LoggingCallback::~LoggingCallback() {}
 
@@ -99,11 +100,13 @@ CallbackReturnType LoggingCallback::operator()(
                           summary.iteration_time_in_seconds,
                           summary.cumulative_time_in_seconds);
   } else if (minimizer_type == TRUST_REGION) {
+    // clang-format off
     if (summary.iteration == 0) {
       output = "iter      cost      cost_change  |gradient|   |step|    tr_ratio  tr_radius  ls_iter  iter_time  total_time\n";  // NOLINT
     }
     const char* kReportRowFormat =
         "% 4d % 8e   % 3.2e   % 3.2e  % 3.2e  % 3.2e % 3.2e     % 4d   % 3.2e   % 3.2e";  // NOLINT
+    // clang-format on
     output += StringPrintf(kReportRowFormat,
                            summary.iteration,
                            summary.cost,

extern/ceres/internal/ceres/callbacks.h

@@ -32,8 +32,9 @@
 #define CERES_INTERNAL_CALLBACKS_H_
 
 #include <string>
-#include "ceres/iteration_callback.h"
+
 #include "ceres/internal/port.h"
+#include "ceres/iteration_callback.h"
 
 namespace ceres {
 namespace internal {
@@ -47,6 +48,7 @@ class StateUpdatingCallback : public IterationCallback {
   StateUpdatingCallback(Program* program, double* parameters);
   virtual ~StateUpdatingCallback();
   CallbackReturnType operator()(const IterationSummary& summary) final;
+
  private:
   Program* program_;
   double* parameters_;
@@ -61,6 +63,7 @@ class GradientProblemSolverStateUpdatingCallback : public IterationCallback {
                                              double* user_parameters);
   virtual ~GradientProblemSolverStateUpdatingCallback();
   CallbackReturnType operator()(const IterationSummary& summary) final;
+
  private:
   int num_parameters_;
   const double* internal_parameters_;

extern/ceres/internal/ceres/canonical_views_clustering.cc

@@ -31,8 +31,8 @@
 
 #include "ceres/canonical_views_clustering.h"
 
-#include <unordered_set>
 #include <unordered_map>
+#include <unordered_set>
 
 #include "ceres/graph.h"
 #include "ceres/map_util.h"
@@ -126,8 +126,7 @@ void CanonicalViewsClustering::ComputeClustering(
 
     // Add canonical view if quality improves, or if minimum is not
     // yet met, otherwise break.
-    if ((best_difference <= 0) &&
-        (centers->size() >= options_.min_views)) {
+    if ((best_difference <= 0) && (centers->size() >= options_.min_views)) {
       break;
     }
 
@@ -141,8 +140,7 @@ void CanonicalViewsClustering::ComputeClustering(
 
 // Return the set of vertices of the graph which have valid vertex
 // weights.
-void CanonicalViewsClustering::FindValidViews(
-    IntSet* valid_views) const {
+void CanonicalViewsClustering::FindValidViews(IntSet* valid_views) const {
   const IntSet& views = graph_->vertices();
   for (const auto& view : views) {
     if (graph_->VertexWeight(view) != WeightedGraph<int>::InvalidWeight()) {
@@ -154,8 +152,7 @@ void CanonicalViewsClustering::FindValidViews(
 // Computes the difference in the quality score if 'candidate' were
 // added to the set of canonical views.
 double CanonicalViewsClustering::ComputeClusteringQualityDifference(
-    const int candidate,
-    const vector<int>& centers) const {
+    const int candidate, const vector<int>& centers) const {
   // View score.
   double difference =
       options_.view_score_weight * graph_->VertexWeight(candidate);
@@ -179,7 +176,7 @@ double CanonicalViewsClustering::ComputeClusteringQualityDifference(
   // Orthogonality.
   for (int i = 0; i < centers.size(); ++i) {
     difference -= options_.similarity_penalty_weight *
-        graph_->EdgeWeight(centers[i], candidate);
+                  graph_->EdgeWeight(centers[i], candidate);
   }
 
   return difference;
@@ -192,8 +189,7 @@ void CanonicalViewsClustering::UpdateCanonicalViewAssignments(
   for (const auto& neighbor : neighbors) {
     const double old_similarity =
         FindWithDefault(view_to_canonical_view_similarity_, neighbor, 0.0);
-    const double new_similarity =
-        graph_->EdgeWeight(neighbor, canonical_view);
+    const double new_similarity = graph_->EdgeWeight(neighbor, canonical_view);
     if (new_similarity > old_similarity) {
       view_to_canonical_view_[neighbor] = canonical_view;
       view_to_canonical_view_similarity_[neighbor] = new_similarity;
@@ -203,8 +199,7 @@ void CanonicalViewsClustering::UpdateCanonicalViewAssignments(
 
 // Assign a cluster id to each view.
 void CanonicalViewsClustering::ComputeClusterMembership(
-    const vector<int>& centers,
-    IntMap* membership) const {
+    const vector<int>& centers, IntMap* membership) const {
   CHECK(membership != nullptr);
   membership->clear();
 

extern/ceres/internal/ceres/canonical_views_clustering.h

@@ -45,6 +45,7 @@
 #include <vector>
 
 #include "ceres/graph.h"
+#include "ceres/internal/port.h"
 
 namespace ceres {
 namespace internal {
@@ -94,13 +95,13 @@ struct CanonicalViewsClusteringOptions;
 // It is possible depending on the configuration of the clustering
 // algorithm that some of the vertices may not be assigned to any
 // cluster. In this case they are assigned to a cluster with id = -1;
-void ComputeCanonicalViewsClustering(
+CERES_EXPORT_INTERNAL void ComputeCanonicalViewsClustering(
     const CanonicalViewsClusteringOptions& options,
     const WeightedGraph<int>& graph,
     std::vector<int>* centers,
     std::unordered_map<int, int>* membership);
 
-struct CanonicalViewsClusteringOptions {
+struct CERES_EXPORT_INTERNAL CanonicalViewsClusteringOptions {
   // The minimum number of canonical views to compute.
   int min_views = 3;
 

extern/ceres/internal/ceres/casts.h

@@ -56,15 +56,15 @@ struct identity_ {
 //
 // base::identity_ is used to make a non-deduced context, which
 // forces all callers to explicitly specify the template argument.
-template<typename To>
+template <typename To>
 inline To implicit_cast(typename identity_<To>::type to) {
   return to;
 }
 
 // This version of implicit_cast is used when two template arguments
 // are specified. It's obsolete and should not be used.
-template<typename To, typename From>
-inline To implicit_cast(typename identity_<From>::type const &f) {
+template <typename To, typename From>
+inline To implicit_cast(typename identity_<From>::type const& f) {
   return f;
 }
 
@@ -86,8 +86,8 @@ inline To implicit_cast(typename identity_<From>::type const &f) {
 //    if (dynamic_cast<Subclass2>(foo)) HandleASubclass2Object(foo);
 // You should design the code some other way not to need this.
 
-template<typename To, typename From>     // use like this: down_cast<T*>(foo);
-inline To down_cast(From* f) {                   // so we only accept pointers
+template <typename To, typename From>  // use like this: down_cast<T*>(foo);
+inline To down_cast(From* f) {         // so we only accept pointers
   // Ensures that To is a sub-type of From *.  This test is here only
   // for compile-time type checking, and has no overhead in an
   // optimized build at run-time, as it will be optimized away

extern/ceres/internal/ceres/cgnr_linear_operator.h

@@ -33,8 +33,9 @@
 
 #include <algorithm>
 #include <memory>
-#include "ceres/linear_operator.h"
+
 #include "ceres/internal/eigen.h"
+#include "ceres/linear_operator.h"
 
 namespace ceres {
 namespace internal {
@@ -79,9 +80,8 @@ class SparseMatrix;
 // Note: This class is not thread safe, since it uses some temporary storage.
 class CgnrLinearOperator : public LinearOperator {
  public:
-  CgnrLinearOperator(const LinearOperator& A, const double *D)
-      : A_(A), D_(D), z_(new double[A.num_rows()]) {
-  }
+  CgnrLinearOperator(const LinearOperator& A, const double* D)
+      : A_(A), D_(D), z_(new double[A.num_rows()]) {}
   virtual ~CgnrLinearOperator() {}
 
   void RightMultiply(const double* x, double* y) const final {
@@ -96,8 +96,8 @@ class CgnrLinearOperator : public LinearOperator {
     // y = y + DtDx
     if (D_ != NULL) {
       int n = A_.num_cols();
-      VectorRef(y, n).array() += ConstVectorRef(D_, n).array().square() *
-                                 ConstVectorRef(x, n).array();
+      VectorRef(y, n).array() +=
+          ConstVectorRef(D_, n).array().square() * ConstVectorRef(x, n).array();
     }
   }
 

extern/ceres/internal/ceres/cgnr_solver.h

@@ -32,6 +32,7 @@
 #define CERES_INTERNAL_CGNR_SOLVER_H_
 
 #include <memory>
+
 #include "ceres/linear_solver.h"
 
 namespace ceres {
@@ -55,11 +56,10 @@ class CgnrSolver : public BlockSparseMatrixSolver {
   void operator=(const CgnrSolver&) = delete;
   virtual ~CgnrSolver();
 
-  Summary SolveImpl(
-      BlockSparseMatrix* A,
-      const double* b,
-      const LinearSolver::PerSolveOptions& per_solve_options,
-      double* x) final;
+  Summary SolveImpl(BlockSparseMatrix* A,
+                    const double* b,
+                    const LinearSolver::PerSolveOptions& per_solve_options,
+                    double* x) final;
 
  private:
   const LinearSolver::Options options_;

extern/ceres/internal/ceres/compressed_col_sparse_matrix_utils.cc

@@ -30,8 +30,9 @@
 
 #include "ceres/compressed_col_sparse_matrix_utils.h"
 
-#include <vector>
 #include <algorithm>
+#include <vector>
+
 #include "ceres/internal/port.h"
 #include "glog/logging.h"
 
@@ -40,13 +41,12 @@ namespace internal {
 
 using std::vector;
 
-void CompressedColumnScalarMatrixToBlockMatrix(
-    const int* scalar_rows,
-    const int* scalar_cols,
-    const vector<int>& row_blocks,
-    const vector<int>& col_blocks,
-    vector<int>* block_rows,
-    vector<int>* block_cols) {
+void CompressedColumnScalarMatrixToBlockMatrix(const int* scalar_rows,
+                                               const int* scalar_cols,
+                                               const vector<int>& row_blocks,
+                                               const vector<int>& col_blocks,
+                                               vector<int>* block_rows,
+                                               vector<int>* block_cols) {
   CHECK(block_rows != nullptr);
   CHECK(block_cols != nullptr);
   block_rows->clear();
@@ -71,10 +71,8 @@ void CompressedColumnScalarMatrixToBlockMatrix(
   for (int col_block = 0; col_block < num_col_blocks; ++col_block) {
     int column_size = 0;
     for (int idx = scalar_cols[c]; idx < scalar_cols[c + 1]; ++idx) {
-      vector<int>::const_iterator it =
-          std::lower_bound(row_block_starts.begin(),
-                           row_block_starts.end(),
-                           scalar_rows[idx]);
+      vector<int>::const_iterator it = std::lower_bound(
+          row_block_starts.begin(), row_block_starts.end(), scalar_rows[idx]);
       // Since we are using lower_bound, it will return the row id
       // where the row block starts. For everything but the first row
       // of the block, where these values will be the same, we can
@@ -104,7 +102,7 @@ void BlockOrderingToScalarOrdering(const vector<int>& blocks,
 
   // block_starts = [0, block1, block1 + block2 ..]
   vector<int> block_starts(num_blocks);
-  for (int i = 0, cursor = 0; i < num_blocks ; ++i) {
+  for (int i = 0, cursor = 0; i < num_blocks; ++i) {
     block_starts[i] = cursor;
     cursor += blocks[i];
   }

extern/ceres/internal/ceres/compressed_col_sparse_matrix_utils.h

@@ -32,6 +32,7 @@
 #define CERES_INTERNAL_COMPRESSED_COL_SPARSE_MATRIX_UTILS_H_
 
 #include <vector>
+
 #include "ceres/internal/port.h"
 
 namespace ceres {
@@ -47,7 +48,7 @@ namespace internal {
 // and column block j, then it is expected that A contains at least
 // one non-zero entry corresponding to the top left entry of c_ij,
 // as that entry is used to detect the presence of a non-zero c_ij.
-void CompressedColumnScalarMatrixToBlockMatrix(
+CERES_EXPORT_INTERNAL void CompressedColumnScalarMatrixToBlockMatrix(
     const int* scalar_rows,
     const int* scalar_cols,
     const std::vector<int>& row_blocks,
@@ -58,7 +59,7 @@ void CompressedColumnScalarMatrixToBlockMatrix(
 // Given a set of blocks and a permutation of these blocks, compute
 // the corresponding "scalar" ordering, where the scalar ordering of
 // size sum(blocks).
-void BlockOrderingToScalarOrdering(
+CERES_EXPORT_INTERNAL void BlockOrderingToScalarOrdering(
     const std::vector<int>& blocks,
     const std::vector<int>& block_ordering,
     std::vector<int>* scalar_ordering);
@@ -101,7 +102,7 @@ void SolveUpperTriangularTransposeInPlace(IntegerType num_cols,
       const double v = values[idx];
       rhs_and_solution[c] -= v * rhs_and_solution[r];
     }
-    rhs_and_solution[c] =  rhs_and_solution[c] / values[cols[c + 1] - 1];
+    rhs_and_solution[c] = rhs_and_solution[c] / values[cols[c + 1] - 1];
   }
 }
 
@@ -132,7 +133,7 @@ void SolveRTRWithSparseRHS(IntegerType num_cols,
       const double v = values[idx];
       solution[c] -= v * solution[r];
     }
-    solution[c] =  solution[c] / values[cols[c + 1] - 1];
+    solution[c] = solution[c] / values[cols[c + 1] - 1];
   }
 
   SolveUpperTriangularInPlace(num_cols, rows, cols, values, solution);

extern/ceres/internal/ceres/compressed_row_jacobian_writer.cc

@@ -44,23 +44,21 @@
 namespace ceres {
 namespace internal {
 
+using std::adjacent_find;
 using std::make_pair;
 using std::pair;
 using std::vector;
-using std::adjacent_find;
 
 void CompressedRowJacobianWriter::PopulateJacobianRowAndColumnBlockVectors(
     const Program* program, CompressedRowSparseMatrix* jacobian) {
-  const vector<ParameterBlock*>& parameter_blocks =
-      program->parameter_blocks();
+  const vector<ParameterBlock*>& parameter_blocks = program->parameter_blocks();
   vector<int>& col_blocks = *(jacobian->mutable_col_blocks());
   col_blocks.resize(parameter_blocks.size());
   for (int i = 0; i < parameter_blocks.size(); ++i) {
     col_blocks[i] = parameter_blocks[i]->LocalSize();
   }
 
-  const vector<ResidualBlock*>& residual_blocks =
-      program->residual_blocks();
+  const vector<ResidualBlock*>& residual_blocks = program->residual_blocks();
   vector<int>& row_blocks = *(jacobian->mutable_row_blocks());
   row_blocks.resize(residual_blocks.size());
   for (int i = 0; i < residual_blocks.size(); ++i) {
@@ -69,11 +67,10 @@ void CompressedRowJacobianWriter::PopulateJacobianRowAndColumnBlockVectors(
 }
 
 void CompressedRowJacobianWriter::GetOrderedParameterBlocks(
-      const Program* program,
-      int residual_id,
-      vector<pair<int, int>>* evaluated_jacobian_blocks) {
-  const ResidualBlock* residual_block =
-      program->residual_blocks()[residual_id];
+    const Program* program,
+    int residual_id,
+    vector<pair<int, int>>* evaluated_jacobian_blocks) {
+  const ResidualBlock* residual_block = program->residual_blocks()[residual_id];
   const int num_parameter_blocks = residual_block->NumParameterBlocks();
 
   for (int j = 0; j < num_parameter_blocks; ++j) {
@@ -88,8 +85,7 @@ void CompressedRowJacobianWriter::GetOrderedParameterBlocks(
 }
 
 SparseMatrix* CompressedRowJacobianWriter::CreateJacobian() const {
-  const vector<ResidualBlock*>& residual_blocks =
-      program_->residual_blocks();
+  const vector<ResidualBlock*>& residual_blocks = program_->residual_blocks();
 
   int total_num_residuals = program_->NumResiduals();
   int total_num_effective_parameters = program_->NumEffectiveParameters();
@@ -112,11 +108,10 @@ SparseMatrix* CompressedRowJacobianWriter::CreateJacobian() const {
   // Allocate more space than needed to store the jacobian so that when the LM
   // algorithm adds the diagonal, no reallocation is necessary. This reduces
   // peak memory usage significantly.
-  CompressedRowSparseMatrix* jacobian =
-      new CompressedRowSparseMatrix(
-          total_num_residuals,
-          total_num_effective_parameters,
-          num_jacobian_nonzeros + total_num_effective_parameters);
+  CompressedRowSparseMatrix* jacobian = new CompressedRowSparseMatrix(
+      total_num_residuals,
+      total_num_effective_parameters,
+      num_jacobian_nonzeros + total_num_effective_parameters);
 
   // At this stage, the CompressedRowSparseMatrix is an invalid state. But this
   // seems to be the only way to construct it without doing a memory copy.
@@ -148,8 +143,7 @@ SparseMatrix* CompressedRowJacobianWriter::CreateJacobian() const {
       std::string parameter_block_description;
       for (int j = 0; j < num_parameter_blocks; ++j) {
         ParameterBlock* parameter_block = residual_block->parameter_blocks()[j];
-        parameter_block_description +=
-            parameter_block->ToString() + "\n";
+        parameter_block_description += parameter_block->ToString() + "\n";
       }
       LOG(FATAL) << "Ceres internal error: "
                  << "Duplicate parameter blocks detected in a cost function. "
@@ -196,7 +190,7 @@ SparseMatrix* CompressedRowJacobianWriter::CreateJacobian() const {
 
 void CompressedRowJacobianWriter::Write(int residual_id,
                                         int residual_offset,
-                                        double **jacobians,
+                                        double** jacobians,
                                         SparseMatrix* base_jacobian) {
   CompressedRowSparseMatrix* jacobian =
       down_cast<CompressedRowSparseMatrix*>(base_jacobian);

extern/ceres/internal/ceres/compressed_row_jacobian_writer.h

@@ -50,8 +50,7 @@ class CompressedRowJacobianWriter {
  public:
   CompressedRowJacobianWriter(Evaluator::Options /* ignored */,
                               Program* program)
-    : program_(program) {
-  }
+      : program_(program) {}
 
   // PopulateJacobianRowAndColumnBlockVectors sets col_blocks and
   // row_blocks for a CompressedRowSparseMatrix, based on the
@@ -64,8 +63,7 @@ class CompressedRowJacobianWriter {
   // (Jacobian writers do not fall under any type hierarchy; they only
   // have to provide an interface as specified in program_evaluator.h).
   static void PopulateJacobianRowAndColumnBlockVectors(
-      const Program* program,
-      CompressedRowSparseMatrix* jacobian);
+      const Program* program, CompressedRowSparseMatrix* jacobian);
 
   // It is necessary to determine the order of the jacobian blocks
   // before copying them into a CompressedRowSparseMatrix (or derived
@@ -99,7 +97,7 @@ class CompressedRowJacobianWriter {
 
   void Write(int residual_id,
              int residual_offset,
-             double **jacobians,
+             double** jacobians,
              SparseMatrix* base_jacobian);
 
  private:

extern/ceres/internal/ceres/compressed_row_sparse_matrix.cc

@@ -33,6 +33,7 @@
 #include <algorithm>
 #include <numeric>
 #include <vector>
+
 #include "ceres/crs_matrix.h"
 #include "ceres/internal/port.h"
 #include "ceres/random.h"

extern/ceres/internal/ceres/compressed_row_sparse_matrix.h

@@ -32,6 +32,7 @@
 #define CERES_INTERNAL_COMPRESSED_ROW_SPARSE_MATRIX_H_
 
 #include <vector>
+
 #include "ceres/internal/port.h"
 #include "ceres/sparse_matrix.h"
 #include "ceres/types.h"
@@ -45,7 +46,7 @@ namespace internal {
 
 class TripletSparseMatrix;
 
-class CompressedRowSparseMatrix : public SparseMatrix {
+class CERES_EXPORT_INTERNAL CompressedRowSparseMatrix : public SparseMatrix {
  public:
   enum StorageType {
     UNSYMMETRIC,

extern/ceres/internal/ceres/concurrent_queue.h

@@ -152,7 +152,6 @@ class ConcurrentQueue {
   bool wait_;
 };
 
-
 }  // namespace internal
 }  // namespace ceres
 

extern/ceres/internal/ceres/conditioned_cost_function.cc

@@ -68,7 +68,8 @@ ConditionedCostFunction::ConditionedCostFunction(
 
 ConditionedCostFunction::~ConditionedCostFunction() {
   if (ownership_ == TAKE_OWNERSHIP) {
-    STLDeleteUniqueContainerPointers(conditioners_.begin(), conditioners_.end());
+    STLDeleteUniqueContainerPointers(conditioners_.begin(),
+                                     conditioners_.end());
   } else {
     wrapped_cost_function_.release();
   }
@@ -77,8 +78,8 @@ ConditionedCostFunction::~ConditionedCostFunction() {
 bool ConditionedCostFunction::Evaluate(double const* const* parameters,
                                        double* residuals,
                                        double** jacobians) const {
-  bool success = wrapped_cost_function_->Evaluate(parameters, residuals,
-                                                  jacobians);
+  bool success =
+      wrapped_cost_function_->Evaluate(parameters, residuals, jacobians);
   if (!success) {
     return false;
   }
@@ -102,9 +103,8 @@ bool ConditionedCostFunction::Evaluate(double const* const* parameters,
 
       double unconditioned_residual = residuals[r];
       double* parameter_pointer = &unconditioned_residual;
-      success = conditioners_[r]->Evaluate(&parameter_pointer,
-                                           &residuals[r],
-                                           conditioner_derivative_pointer2);
+      success = conditioners_[r]->Evaluate(
+          &parameter_pointer, &residuals[r], conditioner_derivative_pointer2);
       if (!success) {
         return false;
       }
@@ -117,7 +117,8 @@ bool ConditionedCostFunction::Evaluate(double const* const* parameters,
             int parameter_block_size =
                 wrapped_cost_function_->parameter_block_sizes()[i];
             VectorRef jacobian_row(jacobians[i] + r * parameter_block_size,
-                                   parameter_block_size, 1);
+                                   parameter_block_size,
+                                   1);
             jacobian_row *= conditioner_derivative;
           }
         }

extern/ceres/internal/ceres/conjugate_gradients_solver.cc

@@ -41,6 +41,7 @@
 
 #include <cmath>
 #include <cstddef>
+
 #include "ceres/internal/eigen.h"
 #include "ceres/linear_operator.h"
 #include "ceres/stringprintf.h"
@@ -51,16 +52,13 @@ namespace ceres {
 namespace internal {
 namespace {
 
-bool IsZeroOrInfinity(double x) {
-  return ((x == 0.0) || std::isinf(x));
-}
+bool IsZeroOrInfinity(double x) { return ((x == 0.0) || std::isinf(x)); }
 
 }  // namespace
 
 ConjugateGradientsSolver::ConjugateGradientsSolver(
     const LinearSolver::Options& options)
-    : options_(options) {
-}
+    : options_(options) {}
 
 LinearSolver::Summary ConjugateGradientsSolver::Solve(
     LinearOperator* A,
@@ -137,7 +135,10 @@ LinearSolver::Summary ConjugateGradientsSolver::Solve(
         summary.termination_type = LINEAR_SOLVER_FAILURE;
         summary.message = StringPrintf(
             "Numerical failure. beta = rho_n / rho_{n-1} = %e, "
-            "rho_n = %e, rho_{n-1} = %e", beta, rho, last_rho);
+            "rho_n = %e, rho_{n-1} = %e",
+            beta,
+            rho,
+            last_rho);
         break;
       }
       p = z + beta * p;
@@ -152,16 +153,20 @@ LinearSolver::Summary ConjugateGradientsSolver::Solve(
       summary.message = StringPrintf(
           "Matrix is indefinite, no more progress can be made. "
           "p'q = %e. |p| = %e, |q| = %e",
-          pq, p.norm(), q.norm());
+          pq,
+          p.norm(),
+          q.norm());
       break;
     }
 
     const double alpha = rho / pq;
     if (std::isinf(alpha)) {
       summary.termination_type = LINEAR_SOLVER_FAILURE;
-      summary.message =
-          StringPrintf("Numerical failure. alpha = rho / pq = %e, "
-                       "rho = %e, pq = %e.", alpha, rho, pq);
+      summary.message = StringPrintf(
+          "Numerical failure. alpha = rho / pq = %e, rho = %e, pq = %e.",
+          alpha,
+          rho,
+          pq);
       break;
     }
 
@@ -223,7 +228,7 @@ LinearSolver::Summary ConjugateGradientsSolver::Solve(
     Q0 = Q1;
 
     // Residual based termination.
-    norm_r = r. norm();
+    norm_r = r.norm();
     if (norm_r <= tol_r &&
         summary.num_iterations >= options_.min_num_iterations) {
       summary.termination_type = LINEAR_SOLVER_SUCCESS;

extern/ceres/internal/ceres/conjugate_gradients_solver.h

@@ -34,6 +34,7 @@
 #ifndef CERES_INTERNAL_CONJUGATE_GRADIENTS_SOLVER_H_
 #define CERES_INTERNAL_CONJUGATE_GRADIENTS_SOLVER_H_
 
+#include "ceres/internal/port.h"
 #include "ceres/linear_solver.h"
 
 namespace ceres {
@@ -54,7 +55,7 @@ class LinearOperator;
 // For more details see the documentation for
 // LinearSolver::PerSolveOptions::r_tolerance and
 // LinearSolver::PerSolveOptions::q_tolerance in linear_solver.h.
-class ConjugateGradientsSolver : public LinearSolver {
+class CERES_EXPORT_INTERNAL ConjugateGradientsSolver : public LinearSolver {
  public:
   explicit ConjugateGradientsSolver(const LinearSolver::Options& options);
   Summary Solve(LinearOperator* A,

extern/ceres/internal/ceres/context.cc

@@ -34,8 +34,6 @@
 
 namespace ceres {
 
-Context* Context::Create() {
-  return new internal::ContextImpl();
-}
+Context* Context::Create() { return new internal::ContextImpl(); }
 
 }  // namespace ceres

extern/ceres/internal/ceres/context_impl.cc

@@ -37,7 +37,6 @@ void ContextImpl::EnsureMinimumThreads(int num_threads) {
 #ifdef CERES_USE_CXX_THREADS
   thread_pool.Resize(num_threads);
 #endif  // CERES_USE_CXX_THREADS
-
 }
 }  // namespace internal
 }  // namespace ceres

extern/ceres/internal/ceres/context_impl.h

@@ -32,7 +32,9 @@
 #define CERES_INTERNAL_CONTEXT_IMPL_H_
 
 // This include must come before any #ifndef check on Ceres compile options.
+// clang-format off
 #include "ceres/internal/port.h"
+// clanf-format on
 
 #include "ceres/context.h"
 
@@ -43,7 +45,7 @@
 namespace ceres {
 namespace internal {
 
-class ContextImpl : public Context {
+class CERES_EXPORT_INTERNAL ContextImpl : public Context {
  public:
   ContextImpl() {}
   ContextImpl(const ContextImpl&) = delete;

extern/ceres/internal/ceres/coordinate_descent_minimizer.cc

@@ -64,8 +64,7 @@ CoordinateDescentMinimizer::CoordinateDescentMinimizer(ContextImpl* context)
   CHECK(context_ != nullptr);
 }
 
-CoordinateDescentMinimizer::~CoordinateDescentMinimizer() {
-}
+CoordinateDescentMinimizer::~CoordinateDescentMinimizer() {}
 
 bool CoordinateDescentMinimizer::Init(
     const Program& program,
@@ -82,13 +81,13 @@ bool CoordinateDescentMinimizer::Init(
   map<int, set<double*>> group_to_elements = ordering.group_to_elements();
   for (const auto& g_t_e : group_to_elements) {
     const auto& elements = g_t_e.second;
-    for (double* parameter_block: elements) {
+    for (double* parameter_block : elements) {
       parameter_blocks_.push_back(parameter_map.find(parameter_block)->second);
       parameter_block_index[parameter_blocks_.back()] =
           parameter_blocks_.size() - 1;
     }
-    independent_set_offsets_.push_back(
-        independent_set_offsets_.back() + elements.size());
+    independent_set_offsets_.push_back(independent_set_offsets_.back() +
+                                       elements.size());
   }
 
   // The ordering does not have to contain all parameter blocks, so
@@ -126,10 +125,9 @@ bool CoordinateDescentMinimizer::Init(
   return true;
 }
 
-void CoordinateDescentMinimizer::Minimize(
-    const Minimizer::Options& options,
-    double* parameters,
-    Solver::Summary* summary) {
+void CoordinateDescentMinimizer::Minimize(const Minimizer::Options& options,
+                                          double* parameters,
+                                          Solver::Summary* summary) {
   // Set the state and mark all parameter blocks constant.
   for (int i = 0; i < parameter_blocks_.size(); ++i) {
     ParameterBlock* parameter_block = parameter_blocks_[i];
@@ -202,7 +200,7 @@ void CoordinateDescentMinimizer::Minimize(
         });
   }
 
-  for (int i =  0; i < parameter_blocks_.size(); ++i) {
+  for (int i = 0; i < parameter_blocks_.size(); ++i) {
     parameter_blocks_[i]->SetVarying();
   }
 
@@ -251,10 +249,10 @@ bool CoordinateDescentMinimizer::IsOrderingValid(
   // Verify that each group is an independent set
   for (const auto& g_t_e : group_to_elements) {
     if (!program.IsParameterBlockSetIndependent(g_t_e.second)) {
-      *message =
-          StringPrintf("The user-provided "
-                       "parameter_blocks_for_inner_iterations does not "
-                       "form an independent set. Group Id: %d", g_t_e.first);
+      *message = StringPrintf(
+          "The user-provided parameter_blocks_for_inner_iterations does not "
+          "form an independent set. Group Id: %d",
+          g_t_e.first);
       return false;
     }
   }

extern/ceres/internal/ceres/corrector.cc

@@ -30,8 +30,9 @@
 
 #include "ceres/corrector.h"
 
-#include <cstddef>
 #include <cmath>
+#include <cstddef>
+
 #include "ceres/internal/eigen.h"
 #include "glog/logging.h"
 
@@ -147,9 +148,9 @@ void Corrector::CorrectJacobian(const int num_rows,
     }
 
     for (int r = 0; r < num_rows; ++r) {
-      jacobian[r * num_cols + c] = sqrt_rho1_ *
-          (jacobian[r * num_cols + c] -
-           alpha_sq_norm_ * residuals[r] * r_transpose_j);
+      jacobian[r * num_cols + c] =
+          sqrt_rho1_ * (jacobian[r * num_cols + c] -
+                        alpha_sq_norm_ * residuals[r] * r_transpose_j);
     }
   }
 }

extern/ceres/internal/ceres/corrector.h

@@ -35,6 +35,8 @@
 #ifndef CERES_INTERNAL_CORRECTOR_H_
 #define CERES_INTERNAL_CORRECTOR_H_
 
+#include "ceres/internal/port.h"
+
 namespace ceres {
 namespace internal {
 
@@ -46,7 +48,7 @@ namespace internal {
 // gauss newton approximation and then take its square root to get the
 // corresponding corrections to the residual and jacobian.  For the
 // full expressions see Eq. 10 and 11 in BANS by Triggs et al.
-class Corrector {
+class CERES_EXPORT_INTERNAL Corrector {
  public:
   // The constructor takes the squared norm, the value, the first and
   // second derivatives of the LossFunction. It precalculates some of

extern/ceres/internal/ceres/covariance.cc

@@ -32,6 +32,7 @@
 
 #include <utility>
 #include <vector>
+
 #include "ceres/covariance_impl.h"
 #include "ceres/problem.h"
 #include "ceres/problem_impl.h"
@@ -46,8 +47,7 @@ Covariance::Covariance(const Covariance::Options& options) {
   impl_.reset(new internal::CovarianceImpl(options));
 }
 
-Covariance::~Covariance() {
-}
+Covariance::~Covariance() {}
 
 bool Covariance::Compute(
     const vector<pair<const double*, const double*>>& covariance_blocks,
@@ -55,9 +55,8 @@ bool Covariance::Compute(
   return impl_->Compute(covariance_blocks, problem->impl_.get());
 }
 
-bool Covariance::Compute(
-    const vector<const double*>& parameter_blocks,
-    Problem* problem) {
+bool Covariance::Compute(const vector<const double*>& parameter_blocks,
+                         Problem* problem) {
   return impl_->Compute(parameter_blocks, problem->impl_.get());
 }
 
@@ -89,8 +88,8 @@ bool Covariance::GetCovarianceMatrix(
 }
 
 bool Covariance::GetCovarianceMatrixInTangentSpace(
-    const std::vector<const double *>& parameter_blocks,
-    double *covariance_matrix) const {
+    const std::vector<const double*>& parameter_blocks,
+    double* covariance_matrix) const {
   return impl_->GetCovarianceMatrixInTangentOrAmbientSpace(parameter_blocks,
                                                            false,  // tangent
                                                            covariance_matrix);

extern/ceres/internal/ceres/covariance_impl.cc

@@ -39,10 +39,9 @@
 #include <utility>
 #include <vector>
 
+#include "Eigen/SVD"
 #include "Eigen/SparseCore"
 #include "Eigen/SparseQR"
-#include "Eigen/SVD"
-
 #include "ceres/compressed_col_sparse_matrix_utils.h"
 #include "ceres/compressed_row_sparse_matrix.h"
 #include "ceres/covariance.h"
@@ -61,25 +60,17 @@
 namespace ceres {
 namespace internal {
 
-using std::make_pair;
-using std::map;
-using std::pair;
-using std::sort;
 using std::swap;
-using std::vector;
 
-typedef vector<pair<const double*, const double*>> CovarianceBlocks;
+using CovarianceBlocks = std::vector<std::pair<const double*, const double*>>;
 
 CovarianceImpl::CovarianceImpl(const Covariance::Options& options)
-    : options_(options),
-      is_computed_(false),
-      is_valid_(false) {
+    : options_(options), is_computed_(false), is_valid_(false) {
 #ifdef CERES_NO_THREADS
   if (options_.num_threads > 1) {
-    LOG(WARNING)
-        << "No threading support is compiled into this binary; "
-        << "only options.num_threads = 1 is supported. Switching "
-        << "to single threaded mode.";
+    LOG(WARNING) << "No threading support is compiled into this binary; "
+                 << "only options.num_threads = 1 is supported. Switching "
+                 << "to single threaded mode.";
     options_.num_threads = 1;
   }
 #endif
@@ -88,16 +79,16 @@ CovarianceImpl::CovarianceImpl(const Covariance::Options& options)
   evaluate_options_.apply_loss_function = options_.apply_loss_function;
 }
 
-CovarianceImpl::~CovarianceImpl() {
-}
+CovarianceImpl::~CovarianceImpl() {}
 
-template <typename T> void CheckForDuplicates(vector<T> blocks) {
+template <typename T>
+void CheckForDuplicates(std::vector<T> blocks) {
   sort(blocks.begin(), blocks.end());
-  typename vector<T>::iterator it =
+  typename std::vector<T>::iterator it =
       std::adjacent_find(blocks.begin(), blocks.end());
   if (it != blocks.end()) {
     // In case there are duplicates, we search for their location.
-    map<T, vector<int>> blocks_map;
+    std::map<T, std::vector<int>> blocks_map;
     for (int i = 0; i < blocks.size(); ++i) {
       blocks_map[blocks[i]].push_back(i);
     }
@@ -122,7 +113,8 @@ template <typename T> void CheckForDuplicates(vector<T> blocks) {
 
 bool CovarianceImpl::Compute(const CovarianceBlocks& covariance_blocks,
                              ProblemImpl* problem) {
-  CheckForDuplicates<pair<const double*, const double*>>(covariance_blocks);
+  CheckForDuplicates<std::pair<const double*, const double*>>(
+      covariance_blocks);
   problem_ = problem;
   parameter_block_to_row_index_.clear();
   covariance_matrix_.reset(NULL);
@@ -132,14 +124,14 @@ bool CovarianceImpl::Compute(const CovarianceBlocks& covariance_blocks,
   return is_valid_;
 }
 
-bool CovarianceImpl::Compute(const vector<const double*>& parameter_blocks,
+bool CovarianceImpl::Compute(const std::vector<const double*>& parameter_blocks,
                              ProblemImpl* problem) {
   CheckForDuplicates<const double*>(parameter_blocks);
   CovarianceBlocks covariance_blocks;
   for (int i = 0; i < parameter_blocks.size(); ++i) {
     for (int j = i; j < parameter_blocks.size(); ++j) {
-      covariance_blocks.push_back(make_pair(parameter_blocks[i],
-                                            parameter_blocks[j]));
+      covariance_blocks.push_back(
+          std::make_pair(parameter_blocks[i], parameter_blocks[j]));
     }
   }
 
@@ -162,13 +154,11 @@ bool CovarianceImpl::GetCovarianceBlockInTangentOrAmbientSpace(
   if (constant_parameter_blocks_.count(original_parameter_block1) > 0 ||
       constant_parameter_blocks_.count(original_parameter_block2) > 0) {
     const ProblemImpl::ParameterMap& parameter_map = problem_->parameter_map();
-    ParameterBlock* block1 =
-        FindOrDie(parameter_map,
-                  const_cast<double*>(original_parameter_block1));
+    ParameterBlock* block1 = FindOrDie(
+        parameter_map, const_cast<double*>(original_parameter_block1));
 
-    ParameterBlock* block2 =
-        FindOrDie(parameter_map,
-                  const_cast<double*>(original_parameter_block2));
+    ParameterBlock* block2 = FindOrDie(
+        parameter_map, const_cast<double*>(original_parameter_block2));
 
     const int block1_size = block1->Size();
     const int block2_size = block2->Size();
@@ -210,8 +200,7 @@ bool CovarianceImpl::GetCovarianceBlockInTangentOrAmbientSpace(
 
   if (offset == row_size) {
     LOG(ERROR) << "Unable to find covariance block for "
-               << original_parameter_block1 << " "
-               << original_parameter_block2;
+               << original_parameter_block1 << " " << original_parameter_block2;
     return false;
   }
 
@@ -227,9 +216,8 @@ bool CovarianceImpl::GetCovarianceBlockInTangentOrAmbientSpace(
   const int block2_size = block2->Size();
   const int block2_local_size = block2->LocalSize();
 
-  ConstMatrixRef cov(covariance_matrix_->values() + rows[row_begin],
-                     block1_size,
-                     row_size);
+  ConstMatrixRef cov(
+      covariance_matrix_->values() + rows[row_begin], block1_size, row_size);
 
   // Fast path when there are no local parameterizations or if the
   // user does not want it lifted to the ambient space.
@@ -237,8 +225,8 @@ bool CovarianceImpl::GetCovarianceBlockInTangentOrAmbientSpace(
       !lift_covariance_to_ambient_space) {
     if (transpose) {
       MatrixRef(covariance_block, block2_local_size, block1_local_size) =
-          cov.block(0, offset, block1_local_size,
-                    block2_local_size).transpose();
+          cov.block(0, offset, block1_local_size, block2_local_size)
+              .transpose();
     } else {
       MatrixRef(covariance_block, block1_local_size, block2_local_size) =
           cov.block(0, offset, block1_local_size, block2_local_size);
@@ -298,7 +286,7 @@ bool CovarianceImpl::GetCovarianceBlockInTangentOrAmbientSpace(
 }
 
 bool CovarianceImpl::GetCovarianceMatrixInTangentOrAmbientSpace(
-    const vector<const double*>& parameters,
+    const std::vector<const double*>& parameters,
     bool lift_covariance_to_ambient_space,
     double* covariance_matrix) const {
   CHECK(is_computed_)
@@ -310,8 +298,8 @@ bool CovarianceImpl::GetCovarianceMatrixInTangentOrAmbientSpace(
   const ProblemImpl::ParameterMap& parameter_map = problem_->parameter_map();
   // For OpenMP compatibility we need to define these vectors in advance
   const int num_parameters = parameters.size();
-  vector<int> parameter_sizes;
-  vector<int> cum_parameter_size;
+  std::vector<int> parameter_sizes;
+  std::vector<int> cum_parameter_size;
   parameter_sizes.reserve(num_parameters);
   cum_parameter_size.resize(num_parameters + 1);
   cum_parameter_size[0] = 0;
@@ -324,7 +312,8 @@ bool CovarianceImpl::GetCovarianceMatrixInTangentOrAmbientSpace(
       parameter_sizes.push_back(block->LocalSize());
     }
   }
-  std::partial_sum(parameter_sizes.begin(), parameter_sizes.end(),
+  std::partial_sum(parameter_sizes.begin(),
+                   parameter_sizes.end(),
                    cum_parameter_size.begin() + 1);
   const int max_covariance_block_size =
       *std::max_element(parameter_sizes.begin(), parameter_sizes.end());
@@ -343,65 +332,66 @@ bool CovarianceImpl::GetCovarianceMatrixInTangentOrAmbientSpace(
   // i = 1:n, j = i:n.
   int iteration_count = (num_parameters * (num_parameters + 1)) / 2;
   problem_->context()->EnsureMinimumThreads(num_threads);
-  ParallelFor(
-      problem_->context(),
-      0,
-      iteration_count,
-      num_threads,
-      [&](int thread_id, int k) {
-        int i, j;
-        LinearIndexToUpperTriangularIndex(k, num_parameters, &i, &j);
+  ParallelFor(problem_->context(),
+              0,
+              iteration_count,
+              num_threads,
+              [&](int thread_id, int k) {
+                int i, j;
+                LinearIndexToUpperTriangularIndex(k, num_parameters, &i, &j);
 
-        int covariance_row_idx = cum_parameter_size[i];
-        int covariance_col_idx = cum_parameter_size[j];
-        int size_i = parameter_sizes[i];
-        int size_j = parameter_sizes[j];
-        double* covariance_block =
-            workspace.get() + thread_id * max_covariance_block_size *
-            max_covariance_block_size;
-        if (!GetCovarianceBlockInTangentOrAmbientSpace(
-                parameters[i], parameters[j],
-                lift_covariance_to_ambient_space, covariance_block)) {
-          success = false;
-        }
+                int covariance_row_idx = cum_parameter_size[i];
+                int covariance_col_idx = cum_parameter_size[j];
+                int size_i = parameter_sizes[i];
+                int size_j = parameter_sizes[j];
+                double* covariance_block =
+                    workspace.get() + thread_id * max_covariance_block_size *
+                                          max_covariance_block_size;
+                if (!GetCovarianceBlockInTangentOrAmbientSpace(
+                        parameters[i],
+                        parameters[j],
+                        lift_covariance_to_ambient_space,
+                        covariance_block)) {
+                  success = false;
+                }
 
-        covariance.block(covariance_row_idx, covariance_col_idx, size_i,
-                         size_j) = MatrixRef(covariance_block, size_i, size_j);
+                covariance.block(
+                    covariance_row_idx, covariance_col_idx, size_i, size_j) =
+                    MatrixRef(covariance_block, size_i, size_j);
 
-        if (i != j) {
-          covariance.block(covariance_col_idx, covariance_row_idx,
-                           size_j, size_i) =
-              MatrixRef(covariance_block, size_i, size_j).transpose();
-        }
-      });
+                if (i != j) {
+                  covariance.block(
+                      covariance_col_idx, covariance_row_idx, size_j, size_i) =
+                      MatrixRef(covariance_block, size_i, size_j).transpose();
+                }
+              });
   return success;
 }
 
 // Determine the sparsity pattern of the covariance matrix based on
 // the block pairs requested by the user.
 bool CovarianceImpl::ComputeCovarianceSparsity(
-    const CovarianceBlocks&  original_covariance_blocks,
-    ProblemImpl* problem) {
+    const CovarianceBlocks& original_covariance_blocks, ProblemImpl* problem) {
   EventLogger event_logger("CovarianceImpl::ComputeCovarianceSparsity");
 
   // Determine an ordering for the parameter block, by sorting the
   // parameter blocks by their pointers.
-  vector<double*> all_parameter_blocks;
+  std::vector<double*> all_parameter_blocks;
   problem->GetParameterBlocks(&all_parameter_blocks);
   const ProblemImpl::ParameterMap& parameter_map = problem->parameter_map();
   std::unordered_set<ParameterBlock*> parameter_blocks_in_use;
-  vector<ResidualBlock*> residual_blocks;
+  std::vector<ResidualBlock*> residual_blocks;
   problem->GetResidualBlocks(&residual_blocks);
 
   for (int i = 0; i < residual_blocks.size(); ++i) {
     ResidualBlock* residual_block = residual_blocks[i];
     parameter_blocks_in_use.insert(residual_block->parameter_blocks(),
                                    residual_block->parameter_blocks() +
-                                   residual_block->NumParameterBlocks());
+                                       residual_block->NumParameterBlocks());
   }
 
   constant_parameter_blocks_.clear();
-  vector<double*>& active_parameter_blocks =
+  std::vector<double*>& active_parameter_blocks =
       evaluate_options_.parameter_blocks;
   active_parameter_blocks.clear();
   for (int i = 0; i < all_parameter_blocks.size(); ++i) {
@@ -434,8 +424,8 @@ bool CovarianceImpl::ComputeCovarianceSparsity(
   // triangular part of the matrix.
   int num_nonzeros = 0;
   CovarianceBlocks covariance_blocks;
-  for (int i = 0; i <  original_covariance_blocks.size(); ++i) {
-    const pair<const double*, const double*>& block_pair =
+  for (int i = 0; i < original_covariance_blocks.size(); ++i) {
+    const std::pair<const double*, const double*>& block_pair =
         original_covariance_blocks[i];
     if (constant_parameter_blocks_.count(block_pair.first) > 0 ||
         constant_parameter_blocks_.count(block_pair.second) > 0) {
@@ -450,8 +440,8 @@ bool CovarianceImpl::ComputeCovarianceSparsity(
 
     // Make sure we are constructing a block upper triangular matrix.
     if (index1 > index2) {
-      covariance_blocks.push_back(make_pair(block_pair.second,
-                                            block_pair.first));
+      covariance_blocks.push_back(
+          std::make_pair(block_pair.second, block_pair.first));
     } else {
       covariance_blocks.push_back(block_pair);
     }
@@ -466,7 +456,7 @@ bool CovarianceImpl::ComputeCovarianceSparsity(
   // Sort the block pairs. As a consequence we get the covariance
   // blocks as they will occur in the CompressedRowSparseMatrix that
   // will store the covariance.
-  sort(covariance_blocks.begin(), covariance_blocks.end());
+  std::sort(covariance_blocks.begin(), covariance_blocks.end());
 
   // Fill the sparsity pattern of the covariance matrix.
   covariance_matrix_.reset(
@@ -486,10 +476,10 @@ bool CovarianceImpl::ComputeCovarianceSparsity(
   // values of the parameter blocks. Thus iterating over the keys of
   // parameter_block_to_row_index_ corresponds to iterating over the
   // rows of the covariance matrix in order.
-  int i = 0;  // index into covariance_blocks.
+  int i = 0;       // index into covariance_blocks.
   int cursor = 0;  // index into the covariance matrix.
   for (const auto& entry : parameter_block_to_row_index_) {
-    const double* row_block =  entry.first;
+    const double* row_block = entry.first;
     const int row_block_size = problem->ParameterBlockLocalSize(row_block);
     int row_begin = entry.second;
 
@@ -498,7 +488,7 @@ bool CovarianceImpl::ComputeCovarianceSparsity(
     int num_col_blocks = 0;
     int num_columns = 0;
     for (int j = i; j < covariance_blocks.size(); ++j, ++num_col_blocks) {
-      const pair<const double*, const double*>& block_pair =
+      const std::pair<const double*, const double*>& block_pair =
           covariance_blocks[j];
       if (block_pair.first != row_block) {
         break;
@@ -519,7 +509,7 @@ bool CovarianceImpl::ComputeCovarianceSparsity(
       }
     }
 
-    i+= num_col_blocks;
+    i += num_col_blocks;
   }
 
   rows[num_rows] = cursor;
@@ -580,9 +570,9 @@ bool CovarianceImpl::ComputeCovarianceValuesUsingSuiteSparseQR() {
   const int num_cols = jacobian.num_cols;
   const int num_nonzeros = jacobian.values.size();
 
-  vector<SuiteSparse_long> transpose_rows(num_cols + 1, 0);
-  vector<SuiteSparse_long> transpose_cols(num_nonzeros, 0);
-  vector<double> transpose_values(num_nonzeros, 0);
+  std::vector<SuiteSparse_long> transpose_rows(num_cols + 1, 0);
+  std::vector<SuiteSparse_long> transpose_cols(num_nonzeros, 0);
+  std::vector<double> transpose_values(num_nonzeros, 0);
 
   for (int idx = 0; idx < num_nonzeros; ++idx) {
     transpose_rows[jacobian.cols[idx] + 1] += 1;
@@ -602,7 +592,7 @@ bool CovarianceImpl::ComputeCovarianceValuesUsingSuiteSparseQR() {
     }
   }
 
-  for (int i = transpose_rows.size() - 1; i > 0 ; --i) {
+  for (int i = transpose_rows.size() - 1; i > 0; --i) {
     transpose_rows[i] = transpose_rows[i - 1];
   }
   transpose_rows[0] = 0;
@@ -642,14 +632,13 @@ bool CovarianceImpl::ComputeCovarianceValuesUsingSuiteSparseQR() {
   // more efficient, both in runtime as well as the quality of
   // ordering computed. So, it maybe worth doing that analysis
   // separately.
-  const SuiteSparse_long rank =
-      SuiteSparseQR<double>(SPQR_ORDERING_BESTAMD,
-                            SPQR_DEFAULT_TOL,
-                            cholmod_jacobian.ncol,
-                            &cholmod_jacobian,
-                            &R,
-                            &permutation,
-                            &cc);
+  const SuiteSparse_long rank = SuiteSparseQR<double>(SPQR_ORDERING_BESTAMD,
+                                                      SPQR_DEFAULT_TOL,
+                                                      cholmod_jacobian.ncol,
+                                                      &cholmod_jacobian,
+                                                      &R,
+                                                      &permutation,
+                                                      &cc);
   event_logger.AddEvent("Numeric Factorization");
   if (R == nullptr) {
     LOG(ERROR) << "Something is wrong. SuiteSparseQR returned R = nullptr.";
@@ -668,7 +657,7 @@ bool CovarianceImpl::ComputeCovarianceValuesUsingSuiteSparseQR() {
     return false;
   }
 
-  vector<int> inverse_permutation(num_cols);
+  std::vector<int> inverse_permutation(num_cols);
   if (permutation) {
     for (SuiteSparse_long i = 0; i < num_cols; ++i) {
       inverse_permutation[permutation[i]] = i;
@@ -697,19 +686,18 @@ bool CovarianceImpl::ComputeCovarianceValuesUsingSuiteSparseQR() {
 
   problem_->context()->EnsureMinimumThreads(num_threads);
   ParallelFor(
-      problem_->context(),
-      0,
-      num_cols,
-      num_threads,
-      [&](int thread_id, int r) {
+      problem_->context(), 0, num_cols, num_threads, [&](int thread_id, int r) {
         const int row_begin = rows[r];
         const int row_end = rows[r + 1];
         if (row_end != row_begin) {
           double* solution = workspace.get() + thread_id * num_cols;
           SolveRTRWithSparseRHS<SuiteSparse_long>(
-              num_cols, static_cast<SuiteSparse_long*>(R->i),
-              static_cast<SuiteSparse_long*>(R->p), static_cast<double*>(R->x),
-              inverse_permutation[r], solution);
+              num_cols,
+              static_cast<SuiteSparse_long*>(R->i),
+              static_cast<SuiteSparse_long*>(R->p),
+              static_cast<double*>(R->x),
+              inverse_permutation[r],
+              solution);
           for (int idx = row_begin; idx < row_end; ++idx) {
             const int c = cols[idx];
             values[idx] = solution[inverse_permutation[c]];
@@ -801,10 +789,9 @@ bool CovarianceImpl::ComputeCovarianceValuesUsingDenseSVD() {
         1.0 / (singular_values[i] * singular_values[i]);
   }
 
-  Matrix dense_covariance =
-      svd.matrixV() *
-      inverse_squared_singular_values.asDiagonal() *
-      svd.matrixV().transpose();
+  Matrix dense_covariance = svd.matrixV() *
+                            inverse_squared_singular_values.asDiagonal() *
+                            svd.matrixV().transpose();
   event_logger.AddEvent("PseudoInverse");
 
   const int num_rows = covariance_matrix_->num_rows();
@@ -839,13 +826,16 @@ bool CovarianceImpl::ComputeCovarianceValuesUsingEigenSparseQR() {
   // Convert the matrix to column major order as required by SparseQR.
   EigenSparseMatrix sparse_jacobian =
       Eigen::MappedSparseMatrix<double, Eigen::RowMajor>(
-          jacobian.num_rows, jacobian.num_cols,
+          jacobian.num_rows,
+          jacobian.num_cols,
           static_cast<int>(jacobian.values.size()),
-          jacobian.rows.data(), jacobian.cols.data(), jacobian.values.data());
+          jacobian.rows.data(),
+          jacobian.cols.data(),
+          jacobian.values.data());
   event_logger.AddEvent("ConvertToSparseMatrix");
 
-  Eigen::SparseQR<EigenSparseMatrix, Eigen::COLAMDOrdering<int>>
-      qr_solver(sparse_jacobian);
+  Eigen::SparseQR<EigenSparseMatrix, Eigen::COLAMDOrdering<int>> qr_solver(
+      sparse_jacobian);
   event_logger.AddEvent("QRDecomposition");
 
   if (qr_solver.info() != Eigen::Success) {
@@ -883,22 +873,17 @@ bool CovarianceImpl::ComputeCovarianceValuesUsingEigenSparseQR() {
 
   problem_->context()->EnsureMinimumThreads(num_threads);
   ParallelFor(
-      problem_->context(),
-      0,
-      num_cols,
-      num_threads,
-      [&](int thread_id, int r) {
+      problem_->context(), 0, num_cols, num_threads, [&](int thread_id, int r) {
         const int row_begin = rows[r];
         const int row_end = rows[r + 1];
         if (row_end != row_begin) {
           double* solution = workspace.get() + thread_id * num_cols;
-          SolveRTRWithSparseRHS<int>(
-              num_cols,
-              qr_solver.matrixR().innerIndexPtr(),
-              qr_solver.matrixR().outerIndexPtr(),
-              &qr_solver.matrixR().data().value(0),
-              inverse_permutation.indices().coeff(r),
-              solution);
+          SolveRTRWithSparseRHS<int>(num_cols,
+                                     qr_solver.matrixR().innerIndexPtr(),
+                                     qr_solver.matrixR().outerIndexPtr(),
+                                     &qr_solver.matrixR().data().value(0),
+                                     inverse_permutation.indices().coeff(r),
+                                     solution);
 
           // Assign the values of the computed covariance using the
           // inverse permutation used in the QR factorization.

extern/ceres/internal/ceres/covariance_impl.h

@@ -36,7 +36,9 @@
 #include <set>
 #include <utility>
 #include <vector>
+
 #include "ceres/covariance.h"
+#include "ceres/internal/port.h"
 #include "ceres/problem_impl.h"
 #include "ceres/suitesparse.h"
 
@@ -45,19 +47,17 @@ namespace internal {
 
 class CompressedRowSparseMatrix;
 
-class CovarianceImpl {
+class CERES_EXPORT_INTERNAL CovarianceImpl {
  public:
   explicit CovarianceImpl(const Covariance::Options& options);
   ~CovarianceImpl();
 
-  bool Compute(
-      const std::vector<std::pair<const double*,
-                                  const double*>>& covariance_blocks,
-      ProblemImpl* problem);
+  bool Compute(const std::vector<std::pair<const double*, const double*>>&
+                   covariance_blocks,
+               ProblemImpl* problem);
 
-  bool Compute(
-      const std::vector<const double*>& parameter_blocks,
-      ProblemImpl* problem);
+  bool Compute(const std::vector<const double*>& parameter_blocks,
+               ProblemImpl* problem);
 
   bool GetCovarianceBlockInTangentOrAmbientSpace(
       const double* parameter_block1,
@@ -68,11 +68,11 @@ class CovarianceImpl {
   bool GetCovarianceMatrixInTangentOrAmbientSpace(
       const std::vector<const double*>& parameters,
       bool lift_covariance_to_ambient_space,
-      double *covariance_matrix) const;
+      double* covariance_matrix) const;
 
   bool ComputeCovarianceSparsity(
-      const std::vector<std::pair<const double*,
-                                  const double*>>& covariance_blocks,
+      const std::vector<std::pair<const double*, const double*>>&
+          covariance_blocks,
       ProblemImpl* problem);
 
   bool ComputeCovarianceValues();

extern/ceres/internal/ceres/cxsparse.cc

@@ -33,13 +33,12 @@
 
 #ifndef CERES_NO_CXSPARSE
 
-#include "ceres/cxsparse.h"
-
 #include <string>
 #include <vector>
 
 #include "ceres/compressed_col_sparse_matrix_utils.h"
 #include "ceres/compressed_row_sparse_matrix.h"
+#include "ceres/cxsparse.h"
 #include "ceres/triplet_sparse_matrix.h"
 #include "glog/logging.h"
 

extern/ceres/internal/ceres/cxsparse.h

@@ -166,7 +166,7 @@ class CXSparseCholesky : public SparseCholesky {
 }  // namespace internal
 }  // namespace ceres
 
-#else   // CERES_NO_CXSPARSE
+#else
 
 typedef void cs_dis;
 

extern/ceres/internal/ceres/dense_jacobian_writer.h

@@ -35,21 +35,19 @@
 
 #include "ceres/casts.h"
 #include "ceres/dense_sparse_matrix.h"
+#include "ceres/internal/eigen.h"
 #include "ceres/parameter_block.h"
 #include "ceres/program.h"
 #include "ceres/residual_block.h"
 #include "ceres/scratch_evaluate_preparer.h"
-#include "ceres/internal/eigen.h"
 
 namespace ceres {
 namespace internal {
 
 class DenseJacobianWriter {
  public:
-  DenseJacobianWriter(Evaluator::Options /* ignored */,
-                      Program* program)
-    : program_(program) {
-  }
+  DenseJacobianWriter(Evaluator::Options /* ignored */, Program* program)
+      : program_(program) {}
 
   // JacobianWriter interface.
 
@@ -61,14 +59,13 @@ class DenseJacobianWriter {
   }
 
   SparseMatrix* CreateJacobian() const {
-    return new DenseSparseMatrix(program_->NumResiduals(),
-                                 program_->NumEffectiveParameters(),
-                                 true);
+    return new DenseSparseMatrix(
+        program_->NumResiduals(), program_->NumEffectiveParameters(), true);
   }
 
   void Write(int residual_id,
              int residual_offset,
-             double **jacobians,
+             double** jacobians,
              SparseMatrix* jacobian) {
     DenseSparseMatrix* dense_jacobian = down_cast<DenseSparseMatrix*>(jacobian);
     const ResidualBlock* residual_block =
@@ -86,15 +83,14 @@ class DenseJacobianWriter {
       }
 
       const int parameter_block_size = parameter_block->LocalSize();
-      ConstMatrixRef parameter_jacobian(jacobians[j],
-                                        num_residuals,
-                                        parameter_block_size);
+      ConstMatrixRef parameter_jacobian(
+          jacobians[j], num_residuals, parameter_block_size);
 
-      dense_jacobian->mutable_matrix().block(
-          residual_offset,
-          parameter_block->delta_offset(),
-          num_residuals,
-          parameter_block_size) = parameter_jacobian;
+      dense_jacobian->mutable_matrix().block(residual_offset,
+                                             parameter_block->delta_offset(),
+                                             num_residuals,
+                                             parameter_block_size) =
+          parameter_jacobian;
     }
   }
 

extern/ceres/internal/ceres/dense_normal_cholesky_solver.cc

@@ -132,13 +132,8 @@ LinearSolver::Summary DenseNormalCholeskySolver::SolveUsingLAPACK(
   //
   // Note: This is a bit delicate, it assumes that the stride on this
   // matrix is the same as the number of rows.
-  BLAS::SymmetricRankKUpdate(A->num_rows(),
-                             num_cols,
-                             A->values(),
-                             true,
-                             1.0,
-                             0.0,
-                             lhs.data());
+  BLAS::SymmetricRankKUpdate(
+      A->num_rows(), num_cols, A->values(), true, 1.0, 0.0, lhs.data());
 
   if (per_solve_options.D != NULL) {
     // Undo the modifications to the matrix A.
@@ -153,13 +148,10 @@ LinearSolver::Summary DenseNormalCholeskySolver::SolveUsingLAPACK(
 
   LinearSolver::Summary summary;
   summary.num_iterations = 1;
-  summary.termination_type =
-      LAPACK::SolveInPlaceUsingCholesky(num_cols,
-                                        lhs.data(),
-                                        x,
-                                        &summary.message);
+  summary.termination_type = LAPACK::SolveInPlaceUsingCholesky(
+      num_cols, lhs.data(), x, &summary.message);
   event_logger.AddEvent("Solve");
   return summary;
 }
-}   // namespace internal
-}   // namespace ceres
+}  // namespace internal
+}  // namespace ceres

extern/ceres/internal/ceres/dense_normal_cholesky_solver.h

@@ -73,7 +73,7 @@ class DenseSparseMatrix;
 // library. This solver always returns a solution, it is the user's
 // responsibility to judge if the solution is good enough for their
 // purposes.
-class DenseNormalCholeskySolver: public DenseSparseMatrixSolver {
+class DenseNormalCholeskySolver : public DenseSparseMatrixSolver {
  public:
   explicit DenseNormalCholeskySolver(const LinearSolver::Options& options);
 

extern/ceres/internal/ceres/dense_qr_solver.cc

@@ -31,6 +31,7 @@
 #include "ceres/dense_qr_solver.h"
 
 #include <cstddef>
+
 #include "Eigen/Dense"
 #include "ceres/dense_sparse_matrix.h"
 #include "ceres/internal/eigen.h"
@@ -77,7 +78,7 @@ LinearSolver::Summary DenseQRSolver::SolveUsingLAPACK(
 
   // TODO(sameeragarwal): Since we are copying anyways, the diagonal
   // can be appended to the matrix instead of doing it on A.
-  lhs_ =  A->matrix();
+  lhs_ = A->matrix();
 
   if (per_solve_options.D != NULL) {
     // Undo the modifications to the matrix A.
@@ -164,5 +165,5 @@ LinearSolver::Summary DenseQRSolver::SolveUsingEigen(
   return summary;
 }
 
-}   // namespace internal
-}   // namespace ceres
+}  // namespace internal
+}  // namespace ceres

extern/ceres/internal/ceres/dense_qr_solver.h

@@ -32,8 +32,9 @@
 #ifndef CERES_INTERNAL_DENSE_QR_SOLVER_H_
 #define CERES_INTERNAL_DENSE_QR_SOLVER_H_
 
-#include "ceres/linear_solver.h"
 #include "ceres/internal/eigen.h"
+#include "ceres/internal/port.h"
+#include "ceres/linear_solver.h"
 
 namespace ceres {
 namespace internal {
@@ -78,7 +79,7 @@ class DenseSparseMatrix;
 // library. This solver always returns a solution, it is the user's
 // responsibility to judge if the solution is good enough for their
 // purposes.
-class DenseQRSolver: public DenseSparseMatrixSolver {
+class CERES_EXPORT_INTERNAL DenseQRSolver : public DenseSparseMatrixSolver {
  public:
   explicit DenseQRSolver(const LinearSolver::Options& options);
 

extern/ceres/internal/ceres/dense_sparse_matrix.cc

@@ -31,17 +31,17 @@
 #include "ceres/dense_sparse_matrix.h"
 
 #include <algorithm>
-#include "ceres/triplet_sparse_matrix.h"
+
 #include "ceres/internal/eigen.h"
 #include "ceres/internal/port.h"
+#include "ceres/triplet_sparse_matrix.h"
 #include "glog/logging.h"
 
 namespace ceres {
 namespace internal {
 
 DenseSparseMatrix::DenseSparseMatrix(int num_rows, int num_cols)
-    : has_diagonal_appended_(false),
-      has_diagonal_reserved_(false) {
+    : has_diagonal_appended_(false), has_diagonal_reserved_(false) {
   m_.resize(num_rows, num_cols);
   m_.setZero();
 }
@@ -49,11 +49,10 @@ DenseSparseMatrix::DenseSparseMatrix(int num_rows, int num_cols)
 DenseSparseMatrix::DenseSparseMatrix(int num_rows,
                                      int num_cols,
                                      bool reserve_diagonal)
-    : has_diagonal_appended_(false),
-      has_diagonal_reserved_(reserve_diagonal) {
+    : has_diagonal_appended_(false), has_diagonal_reserved_(reserve_diagonal) {
   if (reserve_diagonal) {
     // Allocate enough space for the diagonal.
-    m_.resize(num_rows +  num_cols, num_cols);
+    m_.resize(num_rows + num_cols, num_cols);
   } else {
     m_.resize(num_rows, num_cols);
   }
@@ -64,9 +63,9 @@ DenseSparseMatrix::DenseSparseMatrix(const TripletSparseMatrix& m)
     : m_(Eigen::MatrixXd::Zero(m.num_rows(), m.num_cols())),
       has_diagonal_appended_(false),
       has_diagonal_reserved_(false) {
-  const double *values = m.values();
-  const int *rows = m.rows();
-  const int *cols = m.cols();
+  const double* values = m.values();
+  const int* rows = m.rows();
+  const int* cols = m.cols();
   int num_nonzeros = m.num_nonzeros();
 
   for (int i = 0; i < num_nonzeros; ++i) {
@@ -75,14 +74,9 @@ DenseSparseMatrix::DenseSparseMatrix(const TripletSparseMatrix& m)
 }
 
 DenseSparseMatrix::DenseSparseMatrix(const ColMajorMatrix& m)
-    : m_(m),
-      has_diagonal_appended_(false),
-      has_diagonal_reserved_(false) {
-}
+    : m_(m), has_diagonal_appended_(false), has_diagonal_reserved_(false) {}
 
-void DenseSparseMatrix::SetZero() {
-  m_.setZero();
-}
+void DenseSparseMatrix::SetZero() { m_.setZero(); }
 
 void DenseSparseMatrix::RightMultiply(const double* x, double* y) const {
   VectorRef(y, num_rows()) += matrix() * ConstVectorRef(x, num_cols());
@@ -105,7 +99,7 @@ void DenseSparseMatrix::ToDenseMatrix(Matrix* dense_matrix) const {
   *dense_matrix = m_.block(0, 0, num_rows(), num_cols());
 }
 
-void DenseSparseMatrix::AppendDiagonal(double *d) {
+void DenseSparseMatrix::AppendDiagonal(double* d) {
   CHECK(!has_diagonal_appended_);
   if (!has_diagonal_reserved_) {
     ColMajorMatrix tmp = m_;
@@ -133,9 +127,7 @@ int DenseSparseMatrix::num_rows() const {
   return m_.rows();
 }
 
-int DenseSparseMatrix::num_cols() const {
-  return m_.cols();
-}
+int DenseSparseMatrix::num_cols() const { return m_.cols(); }
 
 int DenseSparseMatrix::num_nonzeros() const {
   if (has_diagonal_reserved_ && !has_diagonal_appended_) {
@@ -148,33 +140,30 @@ ConstColMajorMatrixRef DenseSparseMatrix::matrix() const {
   return ConstColMajorMatrixRef(
       m_.data(),
       ((has_diagonal_reserved_ && !has_diagonal_appended_)
-       ? m_.rows() - m_.cols()
-       : m_.rows()),
+           ? m_.rows() - m_.cols()
+           : m_.rows()),
       m_.cols(),
       Eigen::Stride<Eigen::Dynamic, 1>(m_.rows(), 1));
 }
 
 ColMajorMatrixRef DenseSparseMatrix::mutable_matrix() {
-  return ColMajorMatrixRef(
-      m_.data(),
-      ((has_diagonal_reserved_ && !has_diagonal_appended_)
-       ? m_.rows() - m_.cols()
-       : m_.rows()),
-      m_.cols(),
-      Eigen::Stride<Eigen::Dynamic, 1>(m_.rows(), 1));
+  return ColMajorMatrixRef(m_.data(),
+                           ((has_diagonal_reserved_ && !has_diagonal_appended_)
+                                ? m_.rows() - m_.cols()
+                                : m_.rows()),
+                           m_.cols(),
+                           Eigen::Stride<Eigen::Dynamic, 1>(m_.rows(), 1));
 }
 
-
 void DenseSparseMatrix::ToTextFile(FILE* file) const {
   CHECK(file != nullptr);
-  const int active_rows =
-      (has_diagonal_reserved_ && !has_diagonal_appended_)
-      ? (m_.rows() - m_.cols())
-      : m_.rows();
+  const int active_rows = (has_diagonal_reserved_ && !has_diagonal_appended_)
+                              ? (m_.rows() - m_.cols())
+                              : m_.rows();
 
   for (int r = 0; r < active_rows; ++r) {
     for (int c = 0; c < m_.cols(); ++c) {
-      fprintf(file,  "% 10d % 10d %17f\n", r, c, m_(r, c));
+      fprintf(file, "% 10d % 10d %17f\n", r, c, m_(r, c));
     }
   }
 }

extern/ceres/internal/ceres/dense_sparse_matrix.h

@@ -34,6 +34,7 @@
 #define CERES_INTERNAL_DENSE_SPARSE_MATRIX_H_
 
 #include "ceres/internal/eigen.h"
+#include "ceres/internal/port.h"
 #include "ceres/sparse_matrix.h"
 #include "ceres/types.h"
 
@@ -42,7 +43,7 @@ namespace internal {
 
 class TripletSparseMatrix;
 
-class DenseSparseMatrix : public SparseMatrix {
+class CERES_EXPORT_INTERNAL DenseSparseMatrix : public SparseMatrix {
  public:
   // Build a matrix with the same content as the TripletSparseMatrix
   // m. This assumes that m does not have any repeated entries.
@@ -92,7 +93,7 @@ class DenseSparseMatrix : public SparseMatrix {
   // Calling RemoveDiagonal removes the block. It is a fatal error to append a
   // diagonal to a matrix that already has an appended diagonal, and it is also
   // a fatal error to remove a diagonal from a matrix that has none.
-  void AppendDiagonal(double *d);
+  void AppendDiagonal(double* d);
   void RemoveDiagonal();
 
  private:

extern/ceres/internal/ceres/detect_structure.cc

@@ -29,6 +29,7 @@
 // Author: sameeragarwal@google.com (Sameer Agarwal)
 
 #include "ceres/detect_structure.h"
+
 #include "ceres/internal/eigen.h"
 #include "glog/logging.h"
 
@@ -61,8 +62,7 @@ void DetectStructure(const CompressedRowBlockStructure& bs,
     } else if (*row_block_size != Eigen::Dynamic &&
                *row_block_size != row.block.size) {
       VLOG(2) << "Dynamic row block size because the block size changed from "
-              << *row_block_size << " to "
-              << row.block.size;
+              << *row_block_size << " to " << row.block.size;
       *row_block_size = Eigen::Dynamic;
     }
 
@@ -73,8 +73,7 @@ void DetectStructure(const CompressedRowBlockStructure& bs,
     } else if (*e_block_size != Eigen::Dynamic &&
                *e_block_size != bs.cols[e_block_id].size) {
       VLOG(2) << "Dynamic e block size because the block size changed from "
-              << *e_block_size << " to "
-              << bs.cols[e_block_id].size;
+              << *e_block_size << " to " << bs.cols[e_block_id].size;
       *e_block_size = Eigen::Dynamic;
     }
 
@@ -100,9 +99,11 @@ void DetectStructure(const CompressedRowBlockStructure& bs,
       }
     }
 
+    // clang-format off
     const bool is_everything_dynamic = (*row_block_size == Eigen::Dynamic &&
                                         *e_block_size == Eigen::Dynamic &&
                                         *f_block_size == Eigen::Dynamic);
+    // clang-format on
     if (is_everything_dynamic) {
       break;
     }
@@ -110,10 +111,12 @@ void DetectStructure(const CompressedRowBlockStructure& bs,
 
   CHECK_NE(*row_block_size, 0) << "No rows found";
   CHECK_NE(*e_block_size, 0) << "No e type blocks found";
+  // clang-format off
   VLOG(1) << "Schur complement static structure <"
           << *row_block_size << ","
           << *e_block_size << ","
           << *f_block_size << ">.";
+  // clang-format on
 }
 
 }  // namespace internal

extern/ceres/internal/ceres/detect_structure.h

@@ -32,6 +32,7 @@
 #define CERES_INTERNAL_DETECT_STRUCTURE_H_
 
 #include "ceres/block_structure.h"
+#include "ceres/internal/port.h"
 
 namespace ceres {
 namespace internal {
@@ -55,11 +56,11 @@ namespace internal {
 // Note: The structure of rows without any e-blocks has no effect on
 // the values returned by this function. It is entirely possible that
 // the f_block_size and row_blocks_size is not constant in such rows.
-void DetectStructure(const CompressedRowBlockStructure& bs,
-                     const int num_eliminate_blocks,
-                     int* row_block_size,
-                     int* e_block_size,
-                     int* f_block_size);
+void CERES_EXPORT DetectStructure(const CompressedRowBlockStructure& bs,
+                                  const int num_eliminate_blocks,
+                                  int* row_block_size,
+                                  int* e_block_size,
+                                  int* f_block_size);
 
 }  // namespace internal
 }  // namespace ceres