BTOWC
Section: Linux Programmer's Manual (3)
Updated: 2015-08-08
Page Index
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.
ATTRIBUTES
For an explanation of the terms used in this section, see
attributes(7).
| Interface | Attribute | Value
|
|
btowc()
| Thread safety | MT-Safe
|
CONFORMING TO
POSIX.1-2001, POSIX.1-2008, C99.
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 either
mbtowc(3)
or the thread-safe
mbrtowc(3)
instead.
SEE ALSO
mbrtowc(3),
mbtowc(3),
wctob(3)
COLOPHON
This page is part of release 5.10 of the Linux
man-pages
project.
A description of the project,
information about reporting bugs,
and the latest version of this page,
can be found at
https://www.kernel.org/doc/man-pages/.