STRLEN(3)

NAME
strlen, strnlen - find length of string

LIBRARY
libc

SYNOPSIS
#include <string.h>
size_t
strlen(const char *s);
size_t
strnlen(const char *s, size_t maxlen);

DESCRIPTION
The strlen() function computes the length of the string s. The strnlen() function attempts to compute the length of s, but never scans beyond the first maxlen bytes of s.

RETURN VALUES
The strlen() function returns the number of characters that precede the terminating NUL character. The strnlen() function returns either the same result as strlen() or maxlen, whichever is smaller.

SEE ALSO
string(3), wcslen(3), wcswidth(3)

STANDARDS
The strlen() function conforms to isoC. The strnlen() function conforms to p1003.1-2008.

HISTORY
The strlen() function first appeared in the Programmer's Workbench (PWB/UNIX) and was ported to AT&T UNIX. The strnlen()