strpbrk : strpbrk « string.h « C Tutorial

Item	Value
Header file	string.h
Declaration	char strpbrk(const char str1, const char *str2);
Return	returns a pointer to the first character in str1 that matches any character in str2.

If there are no matches, a null pointer is returned.

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

  int main(void)
  {
    char *p;

    p = strpbrk("this is a test", " absj");
    printf(p);

    return 0;
  }

s is a test

24.17.strpbrk
	24.17.1.	strpbrk