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| author | Laurent Bercot <ska-skaware@skarnet.org> | 2014-09-18 18:55:44 +0000 |
|---|---|---|
| committer | Laurent Bercot <ska-skaware@skarnet.org> | 2014-09-18 18:55:44 +0000 |
| commit | 3534b428629be185e096be99e3bd5fdfe32d5544 (patch) | |
| tree | 210ef3198ed66bc7f7b7bf6a85e4579f455e5a36 /src/libstddjb/byte_diff.c | |
| download | skalibs-3534b428629be185e096be99e3bd5fdfe32d5544.tar.xz | |
initial commit with rc for skalibs-2.0.0.0
Diffstat (limited to 'src/libstddjb/byte_diff.c')
| -rw-r--r-- | src/libstddjb/byte_diff.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/libstddjb/byte_diff.c b/src/libstddjb/byte_diff.c new file mode 100644 index 0000000..9e7f107 --- /dev/null +++ b/src/libstddjb/byte_diff.c @@ -0,0 +1,22 @@ +/* ISC license. */ + +#include <skalibs/config.h> + +#ifdef SKALIBS_FLAG_REPLACE_LIBC + +#include <skalibs/bytestr.h> + +int byte_diff (register char const *s, register unsigned int n, register char const *t) +{ + for (;;) + { + if (!n) return 0; if (*s != *t) break; ++s; ++t; --n; + if (!n) return 0; if (*s != *t) break; ++s; ++t; --n; + if (!n) return 0; if (*s != *t) break; ++s; ++t; --n; + if (!n) return 0; if (*s != *t) break; ++s; ++t; --n; + } + return ((int)(unsigned int)(unsigned char) *s) + - ((int)(unsigned int)(unsigned char) *t) ; +} + +#endif |