Mirror of :pserver:cvs@cvs.fefe.de:/cvs libowfat https://www.fefe.de/libowfat/
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#include "case.h"
/* str_start returns 1 if the b is a prefix of a, 0 otherwise */
int case_starts(const char* a, const char* b) {
register const char* s=a;
register const char* t=b;
for (;;) {
register unsigned char x,y;
if (!*t) return 1;
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;
++s; ++t;
}
return 0;
}