1
Fork 0
mirror of https://git.savannah.gnu.org/git/guile.git synced 2025-04-29 19:30:36 +02:00
guile/lib/malloc.c

62 lines
1.7 KiB
C

/* malloc() function that is glibc compatible.
Copyright (C) 1997-1998, 2006-2007, 2009-2021 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2, 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, see <https://www.gnu.org/licenses/>. */
/* written by Jim Meyering and Bruno Haible */
#define _GL_USE_STDLIB_ALLOC 1
#include <config.h>
/* Only the AC_FUNC_MALLOC macro defines 'malloc' already in config.h. */
#ifdef malloc
# define NEED_MALLOC_GNU 1
# undef malloc
/* Whereas the gnulib module 'malloc-gnu' defines HAVE_MALLOC_GNU. */
#elif GNULIB_MALLOC_GNU && !HAVE_MALLOC_GNU
# define NEED_MALLOC_GNU 1
#endif
#include <stdlib.h>
/* A function definition is only needed if NEED_MALLOC_GNU is defined above
or if the module 'malloc-posix' requests it. */
#if NEED_MALLOC_GNU || (GNULIB_MALLOC_POSIX && !HAVE_MALLOC_POSIX)
# include <errno.h>
/* Allocate an N-byte block of memory from the heap.
If N is zero, allocate a 1-byte block. */
void *
rpl_malloc (size_t n)
{
void *result;
# if NEED_MALLOC_GNU
if (n == 0)
n = 1;
# endif
result = malloc (n);
# if !HAVE_MALLOC_POSIX
if (result == NULL)
errno = ENOMEM;
# endif
return result;
}
#endif