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NAME

       wctob - wide-character to single-byte conversion

SYNOPSIS

       #include <stdio.h>
       #include <wchar.h>

       int wctob(wint_t c);

DESCRIPTION

       The  wctob() function shall determine whether c corresponds to a member
       of the extended character  set  whose  character  representation  is  a
       single byte when in the initial shift state.

       The  behavior  of  this  function  shall  be  affected  by the LC_CTYPE
       category of the current locale.

RETURN VALUE

       The wctob() function shall return EOF if c does  not  correspond  to  a
       character  with  length  one  in the initial shift state. Otherwise, it
       shall return the single-byte representation of  that  character  as  an
       unsigned char converted to int.

ERRORS

       No errors are defined.

       The following sections are informative.

EXAMPLES

       None.

APPLICATION USAGE

       None.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       btowc()   ,   the  Base  Definitions  volume  of  IEEE Std 1003.1-2001,
       <wchar.h>

COPYRIGHT

       Portions of this text are reprinted and reproduced in  electronic  form
       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
       -- Portable Operating System Interface (POSIX),  The  Open  Group  Base
       Specifications  Issue  6,  Copyright  (C) 2001-2003 by the Institute of
       Electrical and Electronics Engineers, Inc and The Open  Group.  In  the
       event of any discrepancy between this version and the original IEEE and
       The Open Group Standard, the original IEEE and The Open Group  Standard
       is  the  referee document. The original Standard can be obtained online
       at http://www.opengroup.org/unix/online.html .