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authorSergey Poznyakoff <gray@gnu.org.ua>2004-02-27 13:28:40 +0000
committerSergey Poznyakoff <gray@gnu.org.ua>2004-02-27 13:28:40 +0000
commita783e2c18c6b566b2f4c2b06e6c388a9645c826c (patch)
treeae12abc157dee99bd4c67bab25316be06d3519a2 /src/dstring.h
parentcb721df9888a296af824a4acab4916694d6dc35d (diff)
downloadcpio-a783e2c18c6b566b2f4c2b06e6c388a9645c826c.tar.gz
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1/* dstring.h - Dynamic string handling include file. Requires strings.h.
2 Copyright (C) 1990, 1991, 1992 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
29typedef 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
45void ds_init ();
46void ds_resize ();
47char *ds_fgetname ();
48char *ds_fgets ();
49char *ds_fgetstr ();

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