Manual of STRLEN(3) (v2.25)

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, not including the terminating `\0' character.

RETURN VALUE

The strlen() function returns the number of characters in s.

CONFORMING TO

SVID 3, POSIX, 4.3BSD, ISO 9899

SEE ALSO

string(3), wcslen(3), wcsnlen(3)