wcsnlen
NAME
wcsnlen - determine the length of a fixed-size wide-character string
SYNOPSIS
#include <wchar.h> I size_t wcsnlen(const wchar_t * s , size_t maxlen );
DESCRIPTION
The
R wcsnlen ()
function is the wide-character equivalent
of the
strnlen(3)
function.
It returns the number of wide-characters in the string pointed to by
s, not including the terminating L'\0' character, but at most
maxlen.
In doing this,
R wcsnlen ()
looks only at the first maxlen
wide-characters at s and never beyond s+maxlen.
RETURN VALUE
The
R wcsnlen ()
function returns wcslen(s), if that is less than
maxlen, or maxlen if there is no L'\0' character among the
first maxlen wide characters pointed to by s.
CONFORMING TO
This function is a GNU extension.
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