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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 /str_diffn.c | |
| download | qmail-69aec538b456402170dc723af417ba5c05389c32.tar.gz qmail-69aec538b456402170dc723af417ba5c05389c32.tar.bz2 qmail-69aec538b456402170dc723af417ba5c05389c32.zip | |
qmail 1.03 import
Diffstat (limited to 'str_diffn.c')
| -rw-r--r-- | str_diffn.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/str_diffn.c b/str_diffn.c new file mode 100644 index 0000000..89142f1 --- /dev/null +++ b/str_diffn.c | |||
| @@ -0,0 +1,18 @@ | |||
| 1 | #include "str.h" | ||
| 2 | |||
| 3 | int str_diffn(s,t,len) | ||
| 4 | register char *s; | ||
| 5 | register char *t; | ||
| 6 | unsigned int len; | ||
| 7 | { | ||
| 8 | register char x; | ||
| 9 | |||
| 10 | for (;;) { | ||
| 11 | if (!len--) return 0; x = *s; if (x != *t) break; if (!x) break; ++s; ++t; | ||
| 12 | if (!len--) return 0; x = *s; if (x != *t) break; if (!x) break; ++s; ++t; | ||
| 13 | if (!len--) return 0; x = *s; if (x != *t) break; if (!x) break; ++s; ++t; | ||
| 14 | if (!len--) return 0; x = *s; if (x != *t) break; if (!x) break; ++s; ++t; | ||
| 15 | } | ||
| 16 | return ((int)(unsigned int)(unsigned char) x) | ||
| 17 | - ((int)(unsigned int)(unsigned char) *t); | ||
| 18 | } | ||