BLI_alloca.h

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/*
 * 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.
 */
 
#pragma once
 
/* BLI_array_alloca / alloca */
 
#include <stdlib.h>
 
#if defined(__GNUC__) || defined(__clang__)
#  if defined(__cplusplus) && (__cplusplus > 199711L)
#    define BLI_array_alloca(arr, realsize) (decltype(arr)) alloca(sizeof(*arr) * (realsize))
#  else
#    define BLI_array_alloca(arr, realsize) (typeof(arr)) alloca(sizeof(*arr) * (realsize))
#  endif
#else
#  define BLI_array_alloca(arr, realsize) alloca(sizeof(*arr) * (realsize))
#endif