Mercurial > hg > octave-shane > gnulib-hg
annotate lib/xmalloc.c @ 3130:2cfeb7383c2e
[HAVE_DONE_WORKING_MALLOC_CHECK]: Enclose error-evoking
line in double quotes so that it evokes a better diagnostic.
[HAVE_DONE_WORKING_REALLOC_CHECK]: Likewise.
| author | Jim Meyering <jim@meyering.net> |
|---|---|
| date | Fri, 26 Jan 2001 11:13:28 +0000 |
| parents | bae17cdae026 |
| children | 22d3032f0239 |
| rev | line source |
|---|---|
| 9 | 1 /* xmalloc.c -- malloc with out of memory checking |
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2 Copyright (C) 1990-1999, 2000 Free Software Foundation, Inc. |
| 9 | 3 |
| 4 This program is free software; you can redistribute it and/or modify | |
| 5 it under the terms of the GNU General Public License as published by | |
| 6 the Free Software Foundation; either version 2, or (at your option) | |
| 7 any later version. | |
| 8 | |
| 9 This program is distributed in the hope that it will be useful, | |
| 10 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 12 GNU General Public License for more details. | |
| 13 | |
| 14 You should have received a copy of the GNU General Public License | |
|
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15 along with this program; if not, write to the Free Software Foundation, |
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16 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 9 | 17 |
| 739 | 18 #if HAVE_CONFIG_H |
| 653 | 19 # include <config.h> |
| 399 | 20 #endif |
| 21 | |
| 22 #include <sys/types.h> | |
| 23 | |
| 24 #if STDC_HEADERS | |
| 653 | 25 # include <stdlib.h> |
| 9 | 26 #else |
| 1071 | 27 void *calloc (); |
| 28 void *malloc (); | |
| 29 void *realloc (); | |
| 9 | 30 void free (); |
| 31 #endif | |
| 32 | |
| 739 | 33 #if ENABLE_NLS |
| 399 | 34 # include <libintl.h> |
| 739 | 35 # define _(Text) gettext (Text) |
| 399 | 36 #else |
| 739 | 37 # define textdomain(Domain) |
| 38 # define _(Text) Text | |
| 399 | 39 #endif |
| 1071 | 40 #define N_(Text) Text |
| 399 | 41 |
| 739 | 42 #include "error.h" |
| 1071 | 43 #include "xalloc.h" |
| 739 | 44 |
| 399 | 45 #ifndef EXIT_FAILURE |
| 653 | 46 # define EXIT_FAILURE 1 |
| 399 | 47 #endif |
| 48 | |
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49 #ifndef HAVE_DONE_WORKING_MALLOC_CHECK |
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50 "you must run the autoconf test for a properly working malloc -- see malloc.m4" |
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51 #endif |
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52 |
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53 #ifndef HAVE_DONE_WORKING_REALLOC_CHECK |
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54 "you must run the autoconf test for a properly working realloc --see realloc.m4" |
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55 #endif |
| 739 | 56 |
| 399 | 57 /* Exit value when the requested amount of memory is not available. |
| 58 The caller may set it to some other value. */ | |
| 1071 | 59 int xalloc_exit_failure = EXIT_FAILURE; |
| 60 | |
| 1604 | 61 /* If non NULL, call this function when memory is exhausted. */ |
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62 void (*xalloc_fail_func) PARAMS ((void)) = 0; |
| 399 | 63 |
| 1604 | 64 /* If XALLOC_FAIL_FUNC is NULL, or does return, display this message |
| 65 before exiting when memory is exhausted. Goes through gettext. */ | |
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66 char const xalloc_msg_memory_exhausted[] = N_("memory exhausted"); |
| 399 | 67 |
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68 void |
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69 xalloc_die (void) |
| 399 | 70 { |
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71 if (xalloc_fail_func) |
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72 (*xalloc_fail_func) (); |
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73 error (xalloc_exit_failure, 0, "%s", _(xalloc_msg_memory_exhausted)); |
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74 /* The `noreturn' cannot be given to error, since it may return if |
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75 its first argument is 0. To help compilers understand the |
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76 xalloc_die does terminate, call exit. */ |
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77 exit (EXIT_FAILURE); |
| 399 | 78 } |
| 9 | 79 |
| 80 /* Allocate N bytes of memory dynamically, with error checking. */ | |
| 81 | |
| 1071 | 82 void * |
| 1557 | 83 xmalloc (size_t n) |
| 9 | 84 { |
| 1071 | 85 void *p; |
| 9 | 86 |
| 87 p = malloc (n); | |
| 88 if (p == 0) | |
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89 xalloc_die (); |
| 9 | 90 return p; |
| 91 } | |
| 92 | |
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93 /* Change the size of an allocated block of memory P to N bytes, |
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94 with error checking. */ |
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95 |
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96 void * |
| 1557 | 97 xrealloc (void *p, size_t n) |
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98 { |
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99 p = realloc (p, n); |
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100 if (p == 0) |
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101 xalloc_die (); |
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102 return p; |
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103 } |
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104 |
| 739 | 105 /* Allocate memory for N elements of S bytes, with error checking. */ |
| 106 | |
| 1071 | 107 void * |
| 1557 | 108 xcalloc (size_t n, size_t s) |
| 739 | 109 { |
| 1071 | 110 void *p; |
| 739 | 111 |
| 112 p = calloc (n, s); | |
| 113 if (p == 0) | |
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114 xalloc_die (); |
| 739 | 115 return p; |
| 116 } |