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| author | manuel <manuel@mausz.at> | 2013-02-04 00:08:53 +0100 |
|---|---|---|
| committer | manuel <manuel@mausz.at> | 2013-02-04 00:08:53 +0100 |
| commit | 69aec538b456402170dc723af417ba5c05389c32 (patch) | |
| tree | e6f34c543f17c6392447ea337b2e2868212424d1 /byte_diff.c | |
| download | qmail-69aec538b456402170dc723af417ba5c05389c32.tar.gz qmail-69aec538b456402170dc723af417ba5c05389c32.tar.bz2 qmail-69aec538b456402170dc723af417ba5c05389c32.zip | |
qmail 1.03 import
Diffstat (limited to 'byte_diff.c')
| -rw-r--r-- | byte_diff.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/byte_diff.c b/byte_diff.c new file mode 100644 index 0000000..cdbd760 --- /dev/null +++ b/byte_diff.c | |||
| @@ -0,0 +1,16 @@ | |||
| 1 | #include "byte.h" | ||
| 2 | |||
| 3 | int byte_diff(s,n,t) | ||
| 4 | register char *s; | ||
| 5 | register unsigned int n; | ||
| 6 | register char *t; | ||
| 7 | { | ||
| 8 | for (;;) { | ||
| 9 | if (!n) return 0; if (*s != *t) break; ++s; ++t; --n; | ||
| 10 | if (!n) return 0; if (*s != *t) break; ++s; ++t; --n; | ||
| 11 | if (!n) return 0; if (*s != *t) break; ++s; ++t; --n; | ||
| 12 | if (!n) return 0; if (*s != *t) break; ++s; ++t; --n; | ||
| 13 | } | ||
| 14 | return ((int)(unsigned int)(unsigned char) *s) | ||
| 15 | - ((int)(unsigned int)(unsigned char) *t); | ||
| 16 | } | ||