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15 lines
424 B
C

#include "str.h"
24 years ago
/* str_start returns 1 if the b is a prefix of a, 0 otherwise */
int str_start(const char* a, const char* b) {
register const char* s=a;
register const char* t=b;
for (;;) {
if (!*t) return 1; if (*s!=*t) break; ++s; ++t;
if (!*t) return 1; if (*s!=*t) break; ++s; ++t;
if (!*t) return 1; if (*s!=*t) break; ++s; ++t;
if (!*t) return 1; if (*s!=*t) break; ++s; ++t;
}
return 0;
}