1 /* malloc() function that is glibc compatible.
2 
3    Copyright (C) 1997-1998, 2006-2007, 2009-2012 Free Software Foundation, Inc.
4 
5    This program is free software; you can redistribute it and/or modify
6    it under the terms of the GNU General Public License as published by
7    the Free Software Foundation; either version 3, or (at your option)
8    any later version.
9 
10    This program is distributed in the hope that it will be useful,
11    but WITHOUT ANY WARRANTY; without even the implied warranty of
12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13    GNU General Public License for more details.
14 
15    You should have received a copy of the GNU General Public License
16    along with this program; if not, see <http://www.gnu.org/licenses/>.  */
17 
18 /* written by Jim Meyering and Bruno Haible */
19 
20 #define _GL_USE_STDLIB_ALLOC 1
21 #include <config.h>
22 /* Only the AC_FUNC_MALLOC macro defines 'malloc' already in config.h.  */
23 #ifdef malloc
24 # define NEED_MALLOC_GNU 1
25 # undef malloc
26 /* Whereas the gnulib module 'malloc-gnu' defines HAVE_MALLOC_GNU.  */
27 #elif GNULIB_MALLOC_GNU && !HAVE_MALLOC_GNU
28 # define NEED_MALLOC_GNU 1
29 #endif
30 
31 #include <stdlib.h>
32 
33 #include <errno.h>
34 
35 /* Allocate an N-byte block of memory from the heap.
36    If N is zero, allocate a 1-byte block.  */
37 
38 void *
rpl_malloc(size_t n)39 rpl_malloc (size_t n)
40 {
41   void *result;
42 
43 #if NEED_MALLOC_GNU
44   if (n == 0)
45     n = 1;
46 #endif
47 
48   result = malloc (n);
49 
50 #if !HAVE_MALLOC_POSIX
51   if (result == NULL)
52     errno = ENOMEM;
53 #endif
54 
55   return result;
56 }
57