34 lines
571 B
C
34 lines
571 B
C
#include <string.h>
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#ifdef TEST_IMPLEMENTATION
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#include <stdio.h>
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#define strcasestr my_strcasestr
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char *strcasestr(const char *haystack, const char *needle);
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int main(void)
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{
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const char *a = "sdfsdj kdkf23 34fjsdf lsdf ";
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if (my_strcasestr(a, "11")) {
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printf("Test 1 failed\n");
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}
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if (!my_strcasestr(a, "23")) {
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printf("Test 2 failed\n");
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}
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}
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#endif
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char *strcasestr(const char *haystack, const char *needle)
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{
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while (*haystack) {
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if (0==strncasecmp(haystack, needle, strlen(needle))) {
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return (char*)haystack;
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}
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haystack++;
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}
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return NULL;
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}
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