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| 1 /* -*- buffer-read-only: t -*- vi: set ro: */ |
| 2 /* DO NOT EDIT! GENERATED AUTOMATICALLY! */ |
| 3 /* c-strncasecmp.c -- case insensitive string comparator in C locale |
| 4 Copyright (C) 1998-1999, 2005-2006 Free Software Foundation, Inc. |
| 5 |
| 6 This program is free software; you can redistribute it and/or modify |
| 7 it under the terms of the GNU General Public License as published by |
| 8 the Free Software Foundation; either version 3, or (at your option) |
| 9 any later version. |
| 10 |
| 11 This program is distributed in the hope that it will be useful, |
| 12 but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 GNU General Public License for more details. |
| 15 |
| 16 You should have received a copy of the GNU General Public License |
| 17 along with this program; if not, write to the Free Software Foundation, |
| 18 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ |
| 19 |
| 20 #include <config.h> |
| 21 |
| 22 /* Specification. */ |
| 23 #include "c-strcase.h" |
| 24 |
| 25 #include <limits.h> |
| 26 |
| 27 #include "c-ctype.h" |
| 28 |
| 29 int |
| 30 c_strncasecmp (const char *s1, const char *s2, size_t n) |
| 31 { |
| 32 register const unsigned char *p1 = (const unsigned char *) s1; |
| 33 register const unsigned char *p2 = (const unsigned char *) s2; |
| 34 unsigned char c1, c2; |
| 35 |
| 36 if (p1 == p2 || n == 0) |
| 37 return 0; |
| 38 |
| 39 do |
| 40 { |
| 41 c1 = c_tolower (*p1); |
| 42 c2 = c_tolower (*p2); |
| 43 |
| 44 if (--n == 0 || c1 == '\0') |
| 45 break; |
| 46 |
| 47 ++p1; |
| 48 ++p2; |
| 49 } |
| 50 while (c1 == c2); |
| 51 |
| 52 if (UCHAR_MAX <= INT_MAX) |
| 53 return c1 - c2; |
| 54 else |
| 55 /* On machines where 'char' and 'int' are types of the same size, the |
| 56 difference of two 'unsigned char' values - including the sign bit - |
| 57 doesn't fit in an 'int'. */ |
| 58 return (c1 > c2 ? 1 : c1 < c2 ? -1 : 0); |
| 59 } |
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