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20 lines
464 B
C
20 lines
464 B
C
23 years ago
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#include "case.h"
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/* str_start returns 1 if the b is a prefix of a, 0 otherwise */
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int case_starts(const char* a, const char* b) {
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register const char* s=a;
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register const char* t=b;
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for (;;) {
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register unsigned char x,y;
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if (!*t) return 1;
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x = *s - 'A';
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if (x <= 'Z' - 'A') x += 'a'; else x += 'A';
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y = *t - 'A';
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if (y <= 'Z' - 'A') y += 'a'; else y += 'A';
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if (x != y) break;
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if (!x) break;
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++s; ++t;
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}
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return 0;
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}
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