/* Case-insensitive string comparison functions in C locale.
   Copyright (C) 1995-1996, 2001, 2003, 2005, 2009-2018 Free Software
   Foundation, Inc.

   This program is free software: you can redistribute it and/or
   modify it under the terms of either:

     * the GNU Lesser General Public License as published by the Free
       Software Foundation; either version 3 of the License, or (at your
       option) any later version.

   or

     * the GNU General Public License as published by the Free
       Software Foundation; either version 2 of the License, or (at your
       option) any later version.

   or both in parallel, as here.
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, see <https://www.gnu.org/licenses/>.  */

#ifndef C_STRCASE_H
#define C_STRCASE_H

#include <stddef.h>


/* The functions defined in this file assume the "C" locale and a character
   set without diacritics (ASCII-US or EBCDIC-US or something like that).
   Even if the "C" locale on a particular system is an extension of the ASCII
   character set (like on BeOS, where it is UTF-8, or on AmigaOS, where it
   is ISO-8859-1), the functions in this file recognize only the ASCII
   characters.  More precisely, one of the string arguments must be an ASCII
   string; the other one can also contain non-ASCII characters (but then
   the comparison result will be nonzero).  */


#ifdef __cplusplus
extern "C" {
#endif


/* Compare strings S1 and S2, ignoring case, returning less than, equal to or
   greater than zero if S1 is lexicographically less than, equal to or greater
   than S2.  */
extern int c_strcasecmp (const char *s1, const char *s2) _GL_ATTRIBUTE_PURE;

/* Compare no more than N characters of strings S1 and S2, ignoring case,
   returning less than, equal to or greater than zero if S1 is
   lexicographically less than, equal to or greater than S2.  */
extern int c_strncasecmp (const char *s1, const char *s2, size_t n)
  _GL_ATTRIBUTE_PURE;


#ifdef __cplusplus
}
#endif


#endif /* C_STRCASE_H */