Campbell Barton
c434782e3a
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
64 lines
1.5 KiB
C
64 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright 2008 Blender Foundation. All rights reserved. */
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/** \file
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* \ingroup bli
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* \brief A (mainly) macro array library.
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*
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* This is an array library, used to manage array (re)allocation.
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*
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* \note This is primarily accessed via macros,
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* functions are used to implement some of the internals.
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*
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* Example usage:
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*
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* \code{.c}
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* int *arr = NULL;
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* BLI_array_declare(arr);
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* int i;
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*
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* for (i = 0; i < 10; i++) {
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* BLI_array_grow_one(arr);
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* arr[i] = something;
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* }
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* BLI_array_free(arr);
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* \endcode
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*
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* Arrays are over allocated, so each reallocation the array size is doubled.
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* In situations where contiguous array access isn't needed,
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* other solutions for allocation are available.
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* Consider using on of: BLI_memarena.c, BLI_mempool.c, BLi_stack.c
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*/
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#include <string.h>
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#include "BLI_array.h"
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#include "BLI_sys_types.h"
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#include "MEM_guardedalloc.h"
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void _bli_array_grow_func(void **arr_p,
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const void *arr_static,
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const int sizeof_arr_p,
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const int arr_len,
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const int num,
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const char *alloc_str)
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{
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void *arr = *arr_p;
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void *arr_tmp;
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arr_tmp = MEM_mallocN(sizeof_arr_p * ((num < arr_len) ? (arr_len * 2 + 2) : (arr_len + num)),
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alloc_str);
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if (arr) {
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memcpy(arr_tmp, arr, sizeof_arr_p * arr_len);
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if (arr != arr_static) {
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MEM_freeN(arr);
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}
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}
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*arr_p = arr_tmp;
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}
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