strpbrk - search a string for any of a set of bytes

#include <string.h>
char *strpbrk(const char *s, const char *accept);

The strpbrk() function locates the first occurrence in the string s of any of the bytes in the string accept.

The strpbrk() function returns a pointer to the byte in s that matches one of the bytes in accept, or NULL if no such byte is found.

memchr(3), strchr(3), string(3), strsep(3), strspn(3), strstr(3), strtok(3), wcspbrk(3)