Scans a string for characters specified in a character set.
#include <string.h>
char *strpbrk (
const char *str,
const char *charset);
(IN) Point to the string to scan.
(IN) Points to characters to locate.
Returns a pointer to the first occurrence of any character in the charset parameter. Returns NULL if no characters specified in the charset parameter occur in the string pointed to by the str parameter.
The strpbrk function locates the first occurrence in the string pointed to by str of any character from the string pointed to by charset.