From b732a73bc773789894466b0e5320b2f1fe42c7e9 Mon Sep 17 00:00:00 2001 From: John Denker Date: Fri, 1 Jun 2012 18:58:45 -0700 Subject: original, as downloaded from http://www.qmail.org/netqmail-1.06.tar.gz --- case_diffs.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 case_diffs.c (limited to 'case_diffs.c') 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); +} -- cgit v1.2.3