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
For an explanation of the terms used in this section, see attributes(7).
Interface | Attribute | Value
 | Thread safety | MT-Safe

CONFORMING TO
POSIX.1-2001, POSIX.1-2008, C89, C99, SVr4, 4.3BSD.

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

COLOPHON
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