преобразовать один байт в широкий символ (convert single byte to wide character)
Имя (Name)
btowc - convert single byte to wide character
Синопсис (Synopsis)
#include <wchar.h>
wint_t btowc(int c);
Описание (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.
Возвращаемое значение (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.
Атрибуты (Attributes)
For an explanation of the terms used in this section, see
attributes(7).
┌──────────────────────────────────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├──────────────────────────────────────┼───────────────┼─────────┤
│btowc() │ Thread safety │ MT-Safe │
└──────────────────────────────────────┴───────────────┴─────────┘
Стандарты (Conforming to)
POSIX.1-2001, POSIX.1-2008, C99.
Примечание (Note)
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.
Смотри также (See also)
mbrtowc(3), mbtowc(3), wctob(3)
