17 lines
361 B
C
17 lines
361 B
C
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#include "rocklibc.h"
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char *strstr(const char *haystack, const char *needle) {
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size_t nl=strlen(needle);
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size_t hl=strlen(haystack);
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int i;
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if (!nl) goto found;
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if (nl>hl) return 0;
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for (i=hl-nl+1; __likely(i); --i) {
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if (*haystack==*needle && !memcmp(haystack,needle,nl))
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found:
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return (char*)haystack;
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++haystack;
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}
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return 0;
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}
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