xref: /freebsd/contrib/diff/lib/strcase.h (revision 2de3b87a120614a3b053be7dd845b72f1e9ce804)
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