##### Synopsis

    #include <string.h>
    char *strpbrk(const char *s1, const char *s2);

##### Description

strpbrk locates the first occurrence in the string pointed to by s1 of any character from the string pointed to by s2.
strpbrk returns a pointer to the character, or a null pointer if no character from s2 occurs in s1.

##### Portability

strpbrk conforms to ISO/IEC 9899:1990 (C90) and ISO/IEC 9899:1999 (C99).