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QusWhich of the following function can be used to find the first occurrence of a given string in another string? QusWhich of the following function can be used to find the first occurrence of a given string in another string?

A. strchr( )
B. strrchr( )
C. strstr( )
D. strnset( )

Solution

C. strstr( )

Explanation

strstr is a C standard library string function as defined in string.h. strstr() has the function signature char * strstr(const char *haystack, const char *needle); which returns a pointer to a character at the first index where needle is in haystack, or NULL if not present.