const char * strstr ( const char * str1, const char * str2 ); char * strstr ( char * str1, const char * str2 );
char * strstr ( const char *, const char * ); 1
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/* strstr example */
#include <stdio.h>
#include <string.h>
int main ()
{
char str[] ="This is a simple string";
char * pch;
pch = strstr (str,"simple");
if (pch != NULL)
strncpy (pch,"sample",6);
puts (str);
return 0;
}This is a sample string