xref: /freebsd/contrib/diff/lib/strcase.h (revision 40a8ac8f62b535d30349faf28cf47106b7041b83)
1 /* Case-insensitive string comparison functions.
2    Copyright (C) 1995-1996, 2001, 2003 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
15    along with this program; if not, write to the Free Software Foundation,
16    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
17 
18 #ifndef _STRCASE_H
19 #define _STRCASE_H
20 
21 #include <stddef.h>
22 
23 /* Compare strings S1 and S2, ignoring case, returning less than, equal to or
24    greater than zero if S1 is lexicographically less than, equal to or greater
25    than S2.
26    Note: This function does not work correctly in multibyte locales.  */
27 extern int strcasecmp (const char *s1, const char *s2);
28 
29 /* Compare no more than N characters of strings S1 and S2, ignoring case,
30    returning less than, equal to or greater than zero if S1 is
31    lexicographically less than, equal to or greater than S2.
32    Note: This function can not work correctly in multibyte locales.  */
33 extern int strncasecmp (const char *s1, const char *s2, size_t n);
34 
35 #endif /* _STRCASE_H */
36