btowc - convert single byte to wide character
#include <wchar.h>
wint_t btowc(int c);
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.
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.
For an explanation of the terms used in this section, see
attributes(7).
| Interface |
Attribute |
Value |
| btowc () |
Thread safety |
MT-Safe |
POSIX.1-2001, POSIX.1-2008, C99.
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.
mbrtowc(3),
mbtowc(3),
wctob(3)