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blender-archive/source/blender/blenlib/BLI_compiler_attrs.h
Campbell Barton c434782e3a File headers: SPDX License migration
Use a shorter/simpler license convention, stops the header taking so
much space.

Follow the SPDX license specification: https://spdx.org/licenses

- C/C++/objc/objc++
- Python
- Shell Scripts
- CMake, GNUmakefile

While most of the source tree has been included

- `./extern/` was left out.
- `./intern/cycles` & `./intern/atomic` are also excluded because they
  use different header conventions.

doc/license/SPDX-license-identifiers.txt has been added to list SPDX all
used identifiers.

See P2788 for the script that automated these edits.

Reviewed By: brecht, mont29, sergey

Ref D14069
2022-02-11 09:14:36 +11:00

92 lines
2.5 KiB
C++

/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2013 Blender Foundation. All rights reserved. */
#pragma once
/** \file
* \ingroup bli
*/
/* hint to make sure function result is actually used */
#ifdef __GNUC__
# define ATTR_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
#else
# define ATTR_WARN_UNUSED_RESULT
#endif
/* hint to mark function arguments expected to be non-null
* if no arguments are given to the macro, all of pointer
* arguments would be expected to be non-null
*/
#ifdef __GNUC__
# define ATTR_NONNULL(args...) __attribute__((nonnull(args)))
#else
# define ATTR_NONNULL(...)
#endif
/* never returns NULL */
#if (__GNUC__ * 100 + __GNUC_MINOR__) >= 409 /* gcc4.9+ only */
# define ATTR_RETURNS_NONNULL __attribute__((returns_nonnull))
#else
# define ATTR_RETURNS_NONNULL
#endif
/* hint to mark function as it wouldn't return */
#if defined(__GNUC__) || defined(__clang__)
# define ATTR_NORETURN __attribute__((noreturn))
#else
# define ATTR_NORETURN
#endif
/* hint to treat any non-null function return value cannot alias any other pointer */
#if (defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 403))
# define ATTR_MALLOC __attribute__((malloc))
#else
# define ATTR_MALLOC
#endif
/* the function return value points to memory (2 args for 'size * tot') */
#if (defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 403))
# define ATTR_ALLOC_SIZE(args...) __attribute__((alloc_size(args)))
#else
# define ATTR_ALLOC_SIZE(...)
#endif
/* ensures a NULL terminating argument as the n'th last argument of a variadic function */
#ifdef __GNUC__
# define ATTR_SENTINEL(arg_pos) __attribute__((sentinel(arg_pos)))
#else
# define ATTR_SENTINEL(arg_pos)
#endif
/* hint to compiler that function uses printf-style format string */
#ifdef __GNUC__
# define ATTR_PRINTF_FORMAT(format_param, dots_param) \
__attribute__((format(printf, format_param, dots_param)))
#else
# define ATTR_PRINTF_FORMAT(format_param, dots_param)
#endif
/* Use to suppress '-Wimplicit-fallthrough' (in place of 'break'). */
#ifndef ATTR_FALLTHROUGH
# if defined(__GNUC__) && (__GNUC__ >= 7) /* gcc7.0+ only */
# define ATTR_FALLTHROUGH __attribute__((fallthrough))
# else
# define ATTR_FALLTHROUGH ((void)0)
# endif
#endif
/* Declare the memory alignment in Bytes. */
#if defined(_WIN32) && !defined(FREE_WINDOWS)
# define ATTR_ALIGN(x) __declspec(align(x))
#else
# define ATTR_ALIGN(x) __attribute__((aligned(x)))
#endif
/* Alignment directive */
#ifdef _WIN64
# define ALIGN_STRUCT __declspec(align(64))
#else
# define ALIGN_STRUCT
#endif