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C Language Programming Library Reference Guide

string.h - strstr

Declaration: char *strstr(const char *str1, const char *str2); Finds the first occurrence of the entire string str2 (not including the terminating null character) which appears in the string str1.

Returns a pointer to the first occurrence of str2 in str1. If no match was found, then a null pointer is returned. If str2 points to a string of zero length, then the argument str1 is returned.

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