Manual of STRLEN(3) (v2.39)

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

SVr4, 4.3BSD, C89, C99.

SEE ALSO

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