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f240aacb LC |
1 | /* malloc() function that is glibc compatible. |
2 | ||
3 | Copyright (C) 1997, 1998, 2006, 2007 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 Lesser General Public License as published by | |
7 | the Free Software Foundation; either version 2, 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 Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public License | |
16 | along with this program; if not, write to the Free Software Foundation, | |
17 | Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ | |
18 | ||
19 | /* written by Jim Meyering and Bruno Haible */ | |
20 | ||
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 | |
25 | # undef malloc | |
26 | #endif | |
27 | ||
28 | /* Specification. */ | |
29 | #include <stdlib.h> | |
30 | ||
31 | #include <errno.h> | |
32 | ||
33 | /* Call the system's malloc below. */ | |
34 | #undef malloc | |
35 | ||
36 | /* Allocate an N-byte block of memory from the heap. | |
37 | If N is zero, allocate a 1-byte block. */ | |
38 | ||
39 | void * | |
40 | rpl_malloc (size_t n) | |
41 | { | |
42 | void *result; | |
43 | ||
44 | #ifdef NEED_MALLOC_GNU | |
45 | if (n == 0) | |
46 | n = 1; | |
47 | #endif | |
48 | ||
49 | result = malloc (n); | |
50 | ||
51 | #if !HAVE_MALLOC_POSIX | |
52 | if (result == NULL) | |
53 | errno = ENOMEM; | |
54 | #endif | |
55 | ||
56 | return result; | |
57 | } |