diff options
Diffstat (limited to '3rdParty/LibIDN/src/gl/c-strncasecmp.c')
-rw-r--r-- | 3rdParty/LibIDN/src/gl/c-strncasecmp.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/3rdParty/LibIDN/src/gl/c-strncasecmp.c b/3rdParty/LibIDN/src/gl/c-strncasecmp.c new file mode 100644 index 0000000..9bd6689 --- /dev/null +++ b/3rdParty/LibIDN/src/gl/c-strncasecmp.c | |||
@@ -0,0 +1,56 @@ | |||
1 | /* c-strncasecmp.c -- case insensitive string comparator in C locale | ||
2 | Copyright (C) 1998-1999, 2005-2006, 2009-2015 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 Lesser General Public License as published by | ||
6 | the Free Software Foundation; either version 2.1, 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 Lesser General Public License for more details. | ||
13 | |||
14 | You should have received a copy of the GNU Lesser General Public License | ||
15 | along with this program; if not, see <http://www.gnu.org/licenses/>. */ | ||
16 | |||
17 | #include <config.h> | ||
18 | |||
19 | /* Specification. */ | ||
20 | #include "c-strcase.h" | ||
21 | |||
22 | #include <limits.h> | ||
23 | |||
24 | #include "c-ctype.h" | ||
25 | |||
26 | int | ||
27 | c_strncasecmp (const char *s1, const char *s2, size_t n) | ||
28 | { | ||
29 | register const unsigned char *p1 = (const unsigned char *) s1; | ||
30 | register const unsigned char *p2 = (const unsigned char *) s2; | ||
31 | unsigned char c1, c2; | ||
32 | |||
33 | if (p1 == p2 || n == 0) | ||
34 | return 0; | ||
35 | |||
36 | do | ||
37 | { | ||
38 | c1 = c_tolower (*p1); | ||
39 | c2 = c_tolower (*p2); | ||
40 | |||
41 | if (--n == 0 || c1 == '\0') | ||
42 | break; | ||
43 | |||
44 | ++p1; | ||
45 | ++p2; | ||
46 | } | ||
47 | while (c1 == c2); | ||
48 | |||
49 | if (UCHAR_MAX <= INT_MAX) | ||
50 | return c1 - c2; | ||
51 | else | ||
52 | /* On machines where 'char' and 'int' are types of the same size, the | ||
53 | difference of two 'unsigned char' values - including the sign bit - | ||
54 | doesn't fit in an 'int'. */ | ||
55 | return (c1 > c2 ? 1 : c1 < c2 ? -1 : 0); | ||
56 | } | ||