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C - strstr function



#include <stdio.h>

char *strstr(char *string2, char string*1); 


The strstr function locates the first occurrence of the string string1 in the string string2 and returns a pointer to the beginning of the first occurrence.

Return Value

The strstr function returns a pointer within string2 that points to a string identical to string1. If no such sub string exists in src a null pointer is returned.


#include <stdio.h>

int main() {
   char s1 [] = "My House is small";
   char s2 [] = "My Car is green";

   printf ("Returned String 1: %s\n", strstr (s1, "House"));
   printf ("Returned String 2: %s\n", strstr (s2, "Car"));

It will proiduce following result:

Returned String 1: House is small
Returned String 2: Car is green

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