btowc(3p) - phpMan

BTOWC(3P)                  POSIX Programmer's Manual                 BTOWC(3P)

PROLOG
       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
       implementation of this interface may differ (consult the  corresponding
       Linux  manual page for details of Linux behavior), or the interface may
       not be implemented on Linux.
NAME
       btowc - single byte to wide character conversion
SYNOPSIS
       #include <stdio.h>
       #include <wchar.h>
       wint_t btowc(int c);

DESCRIPTION
       The btowc() function shall determine  whether  c  constitutes  a  valid
       (one-byte) character in the initial shift state.
       The  behavior  of this function shall be affected by the LC_CTYPE cate-
       gory of the current locale.
RETURN VALUE
       The btowc() function shall return WEOF if c has the  value  EOF  or  if
       (unsigned  char)  c does not constitute a valid (one-byte) character in
       the initial shift state.  Otherwise, it shall return the wide-character
       representation of that character.
ERRORS
       No errors are defined.
       The following sections are informative.
EXAMPLES
       None.
APPLICATION USAGE
       None.
RATIONALE
       None.
FUTURE DIRECTIONS
       None.
SEE ALSO
       wctob(), 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 .

IEEE/The Open Group                  2003                            BTOWC(3P)