Commit | Line | Data |
---|---|---|
252b5132 RH |
1 | /* Allocate memory region filled with spaces. |
2 | Copyright (C) 1991 Free Software Foundation, Inc. | |
3 | ||
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. | |
9 | ||
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. | |
14 | ||
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., 59 Temple Place - Suite 330, | |
18 | Boston, MA 02111-1307, USA. */ | |
19 | ||
20 | /* | |
21 | ||
22 | NAME | |
23 | ||
24 | spaces -- return a pointer to a buffer full of spaces | |
25 | ||
26 | SYNOPSIS | |
27 | ||
28 | char *spaces (int count) | |
29 | ||
30 | DESCRIPTION | |
31 | ||
32 | Returns a pointer to a memory region filled with the specified | |
33 | number of spaces and null terminated. The returned pointer is | |
34 | valid until at least the next call. | |
35 | ||
36 | BUGS | |
37 | ||
38 | */ | |
39 | ||
40 | #include "ansidecl.h" | |
41 | #include "libiberty.h" | |
42 | ||
43 | #if VMS | |
44 | #include <stdlib.h> | |
45 | #include <unixlib.h> | |
46 | #else | |
47 | /* For systems with larger pointers than ints, these must be declared. */ | |
48 | extern PTR malloc PARAMS ((size_t)); | |
49 | extern void free PARAMS ((PTR)); | |
50 | #endif | |
51 | ||
52 | const char * | |
53 | spaces (count) | |
54 | int count; | |
55 | { | |
56 | register char *t; | |
57 | static char *buf; | |
58 | static int maxsize; | |
59 | ||
60 | if (count > maxsize) | |
61 | { | |
62 | if (buf) | |
63 | { | |
64 | free (buf); | |
65 | } | |
66 | buf = malloc (count + 1); | |
67 | if (buf == (char *) 0) | |
68 | return 0; | |
69 | for (t = buf + count ; t != buf ; ) | |
70 | { | |
71 | *--t = ' '; | |
72 | } | |
73 | maxsize = count; | |
74 | buf[count] = '\0'; | |
75 | } | |
76 | return (const char *) (buf + maxsize - count); | |
77 | } | |
78 |