// strpbrk example 
// locate characters in string
// source: http://www.cplusplus.com/

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

int main ()
{
  char str[] = "This is a sample string";
  char key[] = "aeiou";
  char *pch;
  printf ("Vowels found in '%s' using strpbrk (string pointer break) are: ",str);
  pch = strpbrk(str, key);
  while (pch != NULL)
    {
      printf ("%c " , *pch);
      // we keep moving along the string
      pch = strpbrk (pch+1,key);
    }
  printf ("\n");
  return EXIT_SUCCESS;
}