diff options
author | John Denker <jsd@av8n.com> | 2012-06-01 18:58:45 -0700 |
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committer | John Denker <jsd@av8n.com> | 2012-06-01 18:58:45 -0700 |
commit | b732a73bc773789894466b0e5320b2f1fe42c7e9 (patch) | |
tree | 385358983f064a1f10a5080b33a3ba13010886db /case_diffs.c | |
parent | 634d365a03cb0581a062cd3cf4db9ae69f1cde26 (diff) |
original, as downloaded from http://www.qmail.org/netqmail-1.06.tar.gz
Diffstat (limited to 'case_diffs.c')
-rw-r--r-- | case_diffs.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/case_diffs.c b/case_diffs.c new file mode 100644 index 0000000..212c645 --- /dev/null +++ b/case_diffs.c @@ -0,0 +1,19 @@ +#include "case.h" + +int case_diffs(s,t) +register char *s; +register char *t; +{ + register unsigned char x; + register unsigned char y; + + for (;;) { + x = *s++ - 'A'; + if (x <= 'Z' - 'A') x += 'a'; else x += 'A'; + y = *t++ - 'A'; + if (y <= 'Z' - 'A') y += 'a'; else y += 'A'; + if (x != y) break; + if (!x) break; + } + return ((int)(unsigned int) x) - ((int)(unsigned int) y); +} |