strpbrk

Header: <string.h>

1 ) Scans the null-terminated byte string pointed to by dest for any character from the null-terminated byte string pointed to by breakset, and returns a pointer to that character.

# Declarations

char *strpbrk( const char *dest, const char *breakset );

/*QChar*/ *strpbrk( /*QChar*/ *dest, const char *breakset );

(since C23)

# Parameters

dest: pointer to the null-terminated byte string to be analyzed
breakset: pointer to the null-terminated byte string that contains the characters to search for

# Return value

Pointer to the first character in dest, that is also in breakset, or null pointer if no such character exists.

# Notes

The name stands for “string pointer break”, because it returns a pointer to the first of the separator (“break”) characters.

# Example

#include <stdio.h>
#include <string.h>
 
int main(void)
{
    const char* str = "hello world, friend of mine!";
    const char* sep = " ,!";
 
    unsigned int cnt = 0;
    do
    {
       str = strpbrk(str, sep); // find separator
       if(str) str += strspn(str, sep); // skip separator
       ++cnt; // increment word count
    }
    while(str && *str);
 
    printf("There are %u words\n", cnt);
}