The fputws function is the wide-character equivalent of the fputs
function. It writes the wide character string starting at ws, up to but
not including the terminating L'\0' character, to stream.
For a non-locking counterpart, see unlocked_stdio(3).
The behaviour of fputws depends on the LC_CTYPE category of the current
In the absence of additional information passed to the fopen call, it is
reasonable to expect that fputws will actually write the multibyte
string corresponding to the wide character string ws.