// strstr example
// locate substring 
// source: http://www.cplusplus.com/

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

int main()
{
  char str[] ="This is a simple string\n";
  char *pch;
  fputs(str, stdout);
  pch = strstr(str, "simple");
  strncpy (pch,"sample", 6);
  fputs(str, stdout);
  return EXIT_SUCCESS;
}