ungetwc(3W)                      DG/UX 5.4.2                     ungetwc(3W)


NAME
       ungetwc - push wchart character back into input stream

SYNOPSIS
       #include <stdio.h>
       #include <widec.h>
       int ungetwc(wchart c, FILE *stream);

DESCRIPTION (International Functions)
       ungetwc() inserts the wchart character c into the buffer associated
       with the input stream.  That character, c, will be returned by the
       next getwc call on that stream.  ungetwc() returns c.

       One character of pushback is guaranteed, provided something has
       already been read from the stream and the stream is actually
       buffered.

       If c equals (wchart)EOF, ungetwc() does nothing to the buffer and
       returns EOF.

       fseek() erases all memory of inserted characters.

DIAGNOSTICS
       ungetwc() returns EOF if it cannot insert a wchart character.

SEE ALSO
       getwc(3W), widec(3W).
       fseek(3S), setbuf(3S), stdio(3S).





























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