strchrnul

Standard C library (libc, -lc)

#define _GNU_SOURCE  /* See feature_test_macros(7) */
#include <string.h>

char *strchrnul(const char *s, int c);

The strchrnul() function is like strchr(3) except that if c is not found in s, then it returns a pointer to the null byte at the end of s.

It is equivalent to both of the following expressions:

strchr(s, c) ?: strnul(s)
s + strcspn(s, (char [2]){c, '\0'})

The strchrnul() function returns a pointer to the matched character, or a pointer to the null byte at the end of s if the character is not found.

For an explanation of the terms used in this section, see attributes(7).

GNU.

glibc 2.1.1, FreeBSD 10, NetBSD 8.

string(3), strchr(3), strnul(3), strcspn(3), strspn(3)