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