strlen (3)

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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.

CONFORMING TO

SVr4, 4.3BSD, C89, C99.

SEE ALSO

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

COLOPHON

This page is part of release 3.54 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/.

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