ungetwc
Header: <wchar.h>
If ch does not equal WEOF, pushes the wide character ch into the input buffer associated with the stream stream in such a manner that subsequent read operation from stream will retrieve that wide character. The external device associated with the stream is not modified.
# Declarations
wint_t ungetwc( wint_t ch, FILE *stream );
(since C95)
# Parameters
ch: wide character to be put backstream: file stream to put the wide character back to
# Return value
On success ch is returned.