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STRSTRIndexNAMEstrstr - locate a substringSYNOPSIS#include <string.h> char *strstr(const char *haystack, const char *needle); DESCRIPTIONThe fBstrstr()fP function finds the first occurrence of the substring fIneedlefP in the string fIhaystackfP. The terminating ` ' characters are not compared.RETURN VALUEThe fBstrstr()fP function returns a pointer to the beginning of the substring, or NULL if the substring is not found.BUGSEarly versions of Linux libc (like 4.5.26) would not allow an empty argument. Later versions (like 4.6.27) work correctly, and return fIhaystackfP when fIneedlefP is empty.CONFORMING TOISO 9899SEE ALSOindex(3), memchr(3), rindex(3), strchr(3), strpbrk(3), strsep(3), strspn(3), strtok(3)
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