88 lines
2.2 KiB
C
88 lines
2.2 KiB
C
|
/* 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 1, 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, 675 Mass Ave, Cambridge, MA 02139, USA. */
|
||
|
|
|
||
|
|
#if defined (HAVE_CONFIG_H)
|
||
|
|
#include <config.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
|
||
|
|
#if defined (HAVE_STDLIB_H)
|
||
|
|
# include <stdlib.h>
|
||
|
|
#else
|
||
|
|
# include "ansi_stdlib.h"
|
||
|
|
#endif /* HAVE_STDLIB_H */
|
||
|
|
|
||
|
|
static void memory_error_and_abort ();
|
||
|
|
|
||
|
|
/* **************************************************************** */
|
||
|
|
/* */
|
||
|
|
/* Memory Allocation and Deallocation. */
|
||
|
|
/* */
|
||
|
|
/* **************************************************************** */
|
||
|
|
|
||
|
|
/* 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. */
|
||
|
|
char *
|
||
|
|
xmalloc (bytes)
|
||
|
|
int bytes;
|
||
|
|
{
|
||
|
|
char *temp;
|
||
|
|
|
||
|
|
temp = (char *)malloc (bytes);
|
||
|
|
if (temp == 0)
|
||
|
|
memory_error_and_abort ("xmalloc");
|
||
|
|
return (temp);
|
||
|
|
}
|
||
|
|
|
||
|
|
char *
|
||
|
|
xrealloc (pointer, bytes)
|
||
|
|
char *pointer;
|
||
|
|
int bytes;
|
||
|
|
{
|
||
|
|
char *temp;
|
||
|
|
|
||
|
|
temp = pointer ? (char *)realloc (pointer, bytes) : (char *)malloc (bytes);
|
||
|
|
|
||
|
|
if (temp == 0)
|
||
|
|
memory_error_and_abort ("xrealloc");
|
||
|
|
return (temp);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
memory_error_and_abort (fname)
|
||
|
|
char *fname;
|
||
|
|
{
|
||
|
|
fprintf (stderr, "%s: out of virtual memory\n", fname);
|
||
|
|
exit (2);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Use this as the function to call when adding unwind protects so we
|
||
|
|
don't need to know what free() returns. */
|
||
|
|
void
|
||
|
|
xfree (string)
|
||
|
|
char *string;
|
||
|
|
{
|
||
|
|
if (string)
|
||
|
|
free (string);
|
||
|
|
}
|