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strpbrk()                Scan String for Character from Character Set

 #include   <string.h>                   Required for declarations only

 char       *strpbrk(string1,charset);
 char       *string1;                    Source string
 char       *charset;                    Character set

    strpbrk() scans 'string1' for the first occurrence of any character
    from 'charset'.  The terminating null character ('\0') is not
    included in the search.

    Returns:    A pointer to the first occurrence of any of the
                characters in 'charset'.  If none of the characters in
                'charset' occur in 'string' a NULL pointer is returned.

  -------------------------------- Example ---------------------------------

    The following statements scan 'string' for a vowel.  If one is found,
    a message, along with the vowel, is printed.

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

         char string[20] = "straight";
         charset[5] = "aeiou";
         char *rslt;

         main()
         {
              if ((rslt = strpbrk(string,charset)) != NULL)
                   printf("vowel found: %c \n",*rslt);
         }