1WCTOB(3P)                  POSIX Programmer's Manual                 WCTOB(3P)
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PROLOG

6       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
7       implementation of this interface may differ (consult the  corresponding
8       Linux  manual page for details of Linux behavior), or the interface may
9       not be implemented on Linux.
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NAME

12       wctob - wide-character to single-byte conversion
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SYNOPSIS

15       #include <stdio.h>
16       #include <wchar.h>
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18       int wctob(wint_t c);
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DESCRIPTION

22       The wctob() function shall determine whether c corresponds to a  member
23       of  the extended character set whose character representation is a sin‐
24       gle byte when in the initial shift state.
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26       The behavior of this function shall be affected by the  LC_CTYPE  cate‐
27       gory of the current locale.
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RETURN VALUE

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

36       No errors are defined.
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38       The following sections are informative.
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EXAMPLES

41       None.
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APPLICATION USAGE

44       None.
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RATIONALE

47       None.
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FUTURE DIRECTIONS

50       None.
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SEE ALSO

53       btowc(), the Base Definitions volume of IEEE Std 1003.1-2001, <wchar.h>
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56       Portions of this text are reprinted and reproduced in  electronic  form
57       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
58       -- Portable Operating System Interface (POSIX),  The  Open  Group  Base
59       Specifications  Issue  6,  Copyright  (C) 2001-2003 by the Institute of
60       Electrical and Electronics Engineers, Inc and The Open  Group.  In  the
61       event of any discrepancy between this version and the original IEEE and
62       The Open Group Standard, the original IEEE and The Open Group  Standard
63       is  the  referee document. The original Standard can be obtained online
64       at http://www.opengroup.org/unix/online.html .
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68IEEE/The Open Group                  2003                            WCTOB(3P)
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