source:
trunk/sys/dietlibc/strcasecmp.c
@
95
Last change on this file since 95 was 1, checked in by , 8 years ago | |
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File size: 393 bytes |
Line | |
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1 | #include <strings.h> |
2 | |
3 | int strcasecmp ( const char* s1, const char* s2 ) |
4 | { |
5 | register unsigned int x2; |
6 | register unsigned int x1; |
7 | |
8 | while (1) { |
9 | x2 = *s2 - 'A'; if (x2 < 26u) x2 += 32; |
10 | x1 = *s1 - 'A'; if (x1 < 26u) x1 += 32; |
11 | s1++; s2++; |
12 | if ( x2 != x1 ) |
13 | break; |
14 | if ( x1 == (unsigned int)-'A') |
15 | break; |
16 | } |
17 | |
18 | return x1 - x2; |
19 | } |
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