| 1 | /* Case-insensitive string comparison functions in C locale. |
| 2 | Copyright (C) 1995-1996, 2001, 2003, 2005, 2009-2014 Free Software |
| 3 | Foundation, Inc. |
| 4 | |
| 5 | This program is free software; you can redistribute it and/or modify |
| 6 | it under the terms of the GNU General Public License as published by |
| 7 | the Free Software Foundation; either version 3, or (at your option) |
| 8 | any later version. |
| 9 | |
| 10 | This program is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | GNU General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU General Public License |
| 16 | along with this program; if not, see <http://www.gnu.org/licenses/>. */ |
| 17 | |
| 18 | #ifndef C_STRCASE_H |
| 19 | #define C_STRCASE_H |
| 20 | |
| 21 | #include <stddef.h> |
| 22 | |
| 23 | |
| 24 | /* The functions defined in this file assume the "C" locale and a character |
| 25 | set without diacritics (ASCII-US or EBCDIC-US or something like that). |
| 26 | Even if the "C" locale on a particular system is an extension of the ASCII |
| 27 | character set (like on BeOS, where it is UTF-8, or on AmigaOS, where it |
| 28 | is ISO-8859-1), the functions in this file recognize only the ASCII |
| 29 | characters. More precisely, one of the string arguments must be an ASCII |
| 30 | string; the other one can also contain non-ASCII characters (but then |
| 31 | the comparison result will be nonzero). */ |
| 32 | |
| 33 | |
| 34 | #ifdef __cplusplus |
| 35 | extern "C" { |
| 36 | #endif |
| 37 | |
| 38 | |
| 39 | /* Compare strings S1 and S2, ignoring case, returning less than, equal to or |
| 40 | greater than zero if S1 is lexicographically less than, equal to or greater |
| 41 | than S2. */ |
| 42 | extern int c_strcasecmp (const char *s1, const char *s2) _GL_ATTRIBUTE_PURE; |
| 43 | |
| 44 | /* Compare no more than N characters of strings S1 and S2, ignoring case, |
| 45 | returning less than, equal to or greater than zero if S1 is |
| 46 | lexicographically less than, equal to or greater than S2. */ |
| 47 | extern int c_strncasecmp (const char *s1, const char *s2, size_t n) |
| 48 | _GL_ATTRIBUTE_PURE; |
| 49 | |
| 50 | |
| 51 | #ifdef __cplusplus |
| 52 | } |
| 53 | #endif |
| 54 | |
| 55 | |
| 56 | #endif /* C_STRCASE_H */ |