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d60d9f65 SS |
1 | /* xmalloc.c -- safe versions of malloc and realloc */ |
2 | ||
cb41b9e7 | 3 | /* Copyright (C) 1991-2017 Free Software Foundation, Inc. |
d60d9f65 | 4 | |
cc88a640 JK |
5 | This file is part of the GNU Readline Library (Readline), a library |
6 | for reading lines of text with interactive input and history editing. | |
d60d9f65 | 7 | |
cc88a640 JK |
8 | Readline is free software: you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation, either version 3 of the License, or | |
11 | (at your option) any later version. | |
d60d9f65 | 12 | |
cc88a640 JK |
13 | Readline is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
d60d9f65 SS |
17 | |
18 | You should have received a copy of the GNU General Public License | |
cc88a640 JK |
19 | along with Readline. If not, see <http://www.gnu.org/licenses/>. |
20 | */ | |
21 | ||
1b17e766 | 22 | #define READLINE_LIBRARY |
d60d9f65 SS |
23 | |
24 | #if defined (HAVE_CONFIG_H) | |
25 | #include <config.h> | |
26 | #endif | |
27 | ||
28 | #include <stdio.h> | |
29 | ||
30 | #if defined (HAVE_STDLIB_H) | |
31 | # include <stdlib.h> | |
32 | #else | |
33 | # include "ansi_stdlib.h" | |
34 | #endif /* HAVE_STDLIB_H */ | |
35 | ||
1b17e766 | 36 | #include "xmalloc.h" |
d60d9f65 SS |
37 | |
38 | /* **************************************************************** */ | |
39 | /* */ | |
40 | /* Memory Allocation and Deallocation. */ | |
41 | /* */ | |
42 | /* **************************************************************** */ | |
43 | ||
1b17e766 | 44 | static void |
cb41b9e7 | 45 | memory_error_and_abort (char *fname) |
1b17e766 EZ |
46 | { |
47 | fprintf (stderr, "%s: out of virtual memory\n", fname); | |
48 | exit (2); | |
49 | } | |
50 | ||
d60d9f65 SS |
51 | /* Return a pointer to free()able block of memory large enough |
52 | to hold BYTES number of bytes. If the memory cannot be allocated, | |
53 | print an error message and abort. */ | |
9255ee31 | 54 | PTR_T |
cb41b9e7 | 55 | xmalloc (size_t bytes) |
d60d9f65 | 56 | { |
9255ee31 | 57 | PTR_T temp; |
d60d9f65 | 58 | |
9255ee31 | 59 | temp = malloc (bytes); |
d60d9f65 SS |
60 | if (temp == 0) |
61 | memory_error_and_abort ("xmalloc"); | |
62 | return (temp); | |
63 | } | |
64 | ||
9255ee31 | 65 | PTR_T |
cb41b9e7 | 66 | xrealloc (PTR_T pointer, size_t bytes) |
d60d9f65 | 67 | { |
9255ee31 | 68 | PTR_T temp; |
d60d9f65 | 69 | |
9255ee31 | 70 | temp = pointer ? realloc (pointer, bytes) : malloc (bytes); |
d60d9f65 SS |
71 | |
72 | if (temp == 0) | |
73 | memory_error_and_abort ("xrealloc"); | |
74 | return (temp); | |
75 | } |