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Defined in header <wchar.h>
wint_t ungetwc( wint_t ch, FILE *stream );
(since C95)

Puts the wide character ch back to the given file stream. Only one wide character pushback is guaranteed.


[edit] Parameters

ch - wide character to be put back
stream - file stream to put the wide character back to

[edit] Return value

On success ch is returned.

On failure WEOF is returned and the given stream remains unchanged.

[edit] References

  • C11 standard (ISO/IEC 9899:2011):
  • The ungetwc function (p: 425-426)
  • C99 standard (ISO/IEC 9899:1999):
  • The ungetwc function (p: 370-371)

[edit] See also

puts a character back into a file stream
gets a wide character from a file stream
C++ documentation for ungetwc