Daily bump.
[official-gcc.git] / libiberty / spaces.c
blob69d7a2d3f834778242b24840f1c3c9fdbb351a26
1 /* Allocate memory region filled with spaces.
2 Copyright (C) 1991 Free Software Foundation, Inc.
4 This file is part of the libiberty library.
5 Libiberty is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public
7 License as published by the Free Software Foundation; either
8 version 2 of the License, or (at your option) any later version.
10 Libiberty is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
15 You should have received a copy of the GNU Library General Public
16 License along with libiberty; see the file COPYING.LIB. If
17 not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
18 Boston, MA 02110-1301, USA. */
22 @deftypefn Extension char* spaces (int @var{count})
24 Returns a pointer to a memory region filled with the specified
25 number of spaces and null terminated. The returned pointer is
26 valid until at least the next call.
28 @end deftypefn
32 #ifdef HAVE_CONFIG_H
33 #include "config.h"
34 #endif
35 #include "ansidecl.h"
36 #include "libiberty.h"
38 #if VMS
39 #include <stdlib.h>
40 #include <unixlib.h>
41 #else
42 /* For systems with larger pointers than ints, these must be declared. */
43 extern PTR malloc (size_t);
44 extern void free (PTR);
45 #endif
47 const char *
48 spaces (int count)
50 register char *t;
51 static char *buf;
52 static int maxsize;
54 if (count > maxsize)
56 free (buf);
57 buf = (char *) malloc (count + 1);
58 if (buf == (char *) 0)
59 return 0;
60 for (t = buf + count ; t != buf ; )
62 *--t = ' ';
64 maxsize = count;
65 buf[count] = '\0';
67 return (const char *) (buf + maxsize - count);