/ [cpio] / cpio / src / dstring.h
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Revision 1.2 - (show annotations)
Mon Sep 6 14:04:53 2004 UTC (17 years, 4 months ago) by gray
Branch: MAIN
CVS Tags: release_2_6
Changes since 1.1: +6 -6 lines
File MIME type: text/plain
Switched to ANSI C (sigh)

1 /* dstring.h - Dynamic string handling include file. Requires strings.h.
2 Copyright (C) 1990, 1991, 1992, 2004 Free Software Foundation, Inc.
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
7 any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License along
15 with this program; if not, write to the Free Software Foundation, Inc.,
16 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
17
18 #ifndef NULL
19 #define NULL 0
20 #endif
21
22 /* A dynamic string consists of record that records the size of an
23 allocated string and the pointer to that string. The actual string
24 is a normal zero byte terminated string that can be used with the
25 usual string functions. The major difference is that the
26 dynamic_string routines know how to get more space if it is needed
27 by allocating new space and copying the current string. */
28
29 typedef struct
30 {
31 int ds_length; /* Actual amount of storage allocated. */
32 char *ds_string; /* String. */
33 } dynamic_string;
34
35
36 /* Macros that look similar to the original string functions.
37 WARNING: These macros work only on pointers to dynamic string records.
38 If used with a real record, an "&" must be used to get the pointer. */
39 #define ds_strlen(s) strlen ((s)->ds_string)
40 #define ds_strcmp(s1, s2) strcmp ((s1)->ds_string, (s2)->ds_string)
41 #define ds_strncmp(s1, s2, n) strncmp ((s1)->ds_string, (s2)->ds_string, n)
42 #define ds_index(s, c) index ((s)->ds_string, c)
43 #define ds_rindex(s, c) rindex ((s)->ds_string, c)
44
45 void ds_init (dynamic_string *string, int size);
46 void ds_resize (dynamic_string *string, int size);
47 char *ds_fgetname (FILE *f, dynamic_string *s);
48 char *ds_fgets (FILE *f, dynamic_string *s);
49 char *ds_fgetstr (FILE *f, dynamic_string *s, char eos);

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