STRLEN(3)

NAME
strlen - calculate the length of a string

SYNOPSIS
#include <string.h>

size_t strlen(const char *s);

DESCRIPTION
The strlen() function calculates the length of the string s, excluding the terminating null byte ('\0').

RETURN VALUE
The strlen() function returns the number of bytes in the string s.

ATTRIBUTES

  Multithreading (see pthreads(7))
The strlen() function is thread-safe.

CONFORMING TO
SVr4, 4.3BSD, C89, C99.

SEE ALSO
string(3), strnlen(3), wcslen(3), wcsnlen(3)

COLOPHON
This page is part of release 3.65 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.