linux man page for btowc

BTOWC(3)						     Linux Programmer's Manual							  BTOWC(3)

NAME
       btowc - convert single byte to wide character

SYNOPSIS
       #include <wchar.h>

       wint_t btowc(int c);

DESCRIPTION
       The  btowc() function converts c, interpreted as a multibyte sequence of length 1, starting in the initial shift state, to a wide character
       and returns it.	If c is EOF or not a valid multibyte sequence of length 1, the btowc() function returns WEOF.

RETURN VALUE
       The btowc() function returns the wide character converted from the single byte c.  If c is EOF or not a valid multibyte sequence of  length
       1, it returns WEOF.

CONFORMING TO
       C99, POSIX.1-2001.

NOTES
       The behavior of btowc() depends on the LC_CTYPE category of the current locale.

       This  function  should  never  be used.	It does not work for encodings which have state, and unnecessarily treats single bytes differently
       from multibyte sequences.  Use the function mbtowc() instead.

SEE ALSO
       wctob(3), mbtowc(3)

COLOPHON
       This page is part of release 3.27 of the Linux man-pages project.  A description of the project, and information about reporting bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.

GNU
								    2009-02-04								  BTOWC(3)