19 lines
448 B
C
19 lines
448 B
C
#include <strings.h>
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#include <ctype.h>
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int strcasecmp(const char * s1, const char * s2) {
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for (; tolower(*s1) == tolower(*s2) && *s1; s1++, s2++);
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return *(unsigned char *)s1 - *(unsigned char *)s2;
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}
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int strncasecmp(const char *s1, const char *s2, size_t n) {
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if (n == 0) return 0;
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while (n-- && tolower(*s1) == tolower(*s2)) {
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if (!n || !*s1) break;
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s1++;
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s2++;
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}
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return (unsigned int)tolower(*s1) - (unsigned int)tolower(*s2);
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}
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