/* gnulib's reallocarray, but using GC_realloc().

   Simply #defining reallocarray in config.h does not work.

   Copyright 2022 Free Software Foundation, Inc.

   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 3, 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, see
   <https://www.gnu.org/licenses/gpl-3.0.html>.  */

#include <config.h>

#include <stdlib.h>
#include <errno.h>

#include "intprops.h"

void *
a2ps_reallocarray(void *ptr, size_t nmemb, size_t size)
{
  size_t nbytes;
  if (INT_MULTIPLY_WRAPV (nmemb, size, &nbytes))
    {
      errno = ENOMEM;
      return NULL;
    }

  /* Rely on the semantics of GNU realloc.  */
  return GC_realloc (ptr, nbytes);
}
