1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
/* xmalloc.c -- safe versions of malloc and realloc */
/* Copyright (C) 1991 Free Software Foundation, Inc.
This file is part of GNU Readline, a library for reading lines
of text with interactive input and history editing.
Readline is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
Readline 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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with Readline; see the file COPYING. If not, write to the Free
Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
#define READLINE_LIBRARY 1
#include "config.h"
#include <stdio.h>
#if defined (HAVE_STDLIB_H)
# include <stdlib.h>
#else
# include "ansi_stdlib.h"
#endif /* HAVE_STDLIB_H */
#include "xmalloc.h"
/* **************************************************************** */
/* */
/* Memory Allocation and Deallocation. */
/* */
/* **************************************************************** */
static void
memory_error_and_abort (fname)
char *fname;
{
fprintf (stderr, "%s: out of virtual memory\n", fname);
exit (2);
}
/* Return a pointer to free()able block of memory large enough
to hold BYTES number of bytes. If the memory cannot be allocated,
print an error message and abort. */
PTR_T
xmalloc (bytes)
size_t bytes;
{
PTR_T temp;
temp = malloc (bytes);
if (temp == 0)
memory_error_and_abort ("xmalloc");
return (temp);
}
PTR_T
xrealloc (pointer, bytes)
PTR_T pointer;
size_t bytes;
{
PTR_T temp;
temp = pointer ? realloc (pointer, bytes) : malloc (bytes);
if (temp == 0)
memory_error_and_abort ("xrealloc");
return (temp);
}
/* Use this as the function to call when adding unwind protects so we
don't need to know what free() returns. */
void
xfree (string)
PTR_T string;
{
if (string)
free (string);
}
|
