31 lines
581 B
C
31 lines
581 B
C
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#include "strfry.h"
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#include <ctype.h>
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unsigned hamming_distance(const char *s1, const char *s2, bool ignore_case) {
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unsigned distance = 0;
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if (ignore_case) {
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for ( ; *s1 && *s2; s1++, s2++) {
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if (tolower(*s1) != tolower(*s2)) {
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distance++;
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}
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}
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} else {
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for (; *s1 && *s2; s1++, s2++) {
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if (*s1 != *s2) {
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distance++;
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}
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}
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}
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for ( ; *s1; s1++) {
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distance++;
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}
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for ( ; *s2; s2++) {
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distance++;
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}
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return distance;
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}
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