The wcslen() function is the wide-character equivalent of
the strlen(3) function. It determines the length of the
wide-character string pointed to by s, excluding the terminating null
wide character (L'\0').
RETURN VALUE
The wcslen() function returns the number of wide characters
in s.
ATTRIBUTES
For an explanation of the terms used in this section, see
attributes(7).
Interface
Attribute
Value
wcslen ()
Thread safety
MT-Safe
STANDARDS
C11, POSIX.1-2008.
HISTORY
POSIX.1-2001, C99.
NOTES
In cases where the input buffer may not contain a terminating null
wide character, wcsnlen(3) should be used instead.