69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
/* Allocate memory region filled with spaces.
|
|
Copyright (C) 1991-2022 Free Software Foundation, Inc.
|
|
|
|
This file is part of the libiberty library.
|
|
Libiberty is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2 of the License, or (at your option) any later version.
|
|
|
|
Libiberty 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with libiberty; see the file COPYING.LIB. If
|
|
not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
|
|
Boston, MA 02110-1301, USA. */
|
|
|
|
/*
|
|
|
|
@deftypefn Extension char* spaces (int @var{count})
|
|
|
|
Returns a pointer to a memory region filled with the specified
|
|
number of spaces and null terminated. The returned pointer is
|
|
valid until at least the next call.
|
|
|
|
@end deftypefn
|
|
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
#include "ansidecl.h"
|
|
#include "libiberty.h"
|
|
|
|
#if VMS
|
|
#include <stdlib.h>
|
|
#include <unixlib.h>
|
|
#else
|
|
/* For systems with larger pointers than ints, these must be declared. */
|
|
extern void *malloc (size_t);
|
|
extern void free (void *);
|
|
#endif
|
|
|
|
const char *
|
|
spaces (int count)
|
|
{
|
|
register char *t;
|
|
static char *buf;
|
|
static int maxsize;
|
|
|
|
if (count > maxsize)
|
|
{
|
|
free (buf);
|
|
buf = (char *) malloc (count + 1);
|
|
if (buf == (char *) 0)
|
|
return 0;
|
|
for (t = buf + count ; t != buf ; )
|
|
{
|
|
*--t = ' ';
|
|
}
|
|
maxsize = count;
|
|
buf[count] = '\0';
|
|
}
|
|
return (const char *) (buf + maxsize - count);
|
|
}
|
|
|