try to represent a wide character as a single byte
wctob() function tests whether the multibyte
representation of the wide character c, starting in
the initial state, consists of a single byte. If so, it is
returned as an unsigned char.
Never use this
function. It cannot help you in writing internationalized
programs. Internationalized programs must never distinguish
single-byte and multibyte characters.
wctob() function returns the single-byte
representation of c, if it exists, of EOF
explanation of the terms used in this section, see
The behavior of
wctob() depends on the LC_CTYPE category of
the current locale.
should never be used. Internationalized programs must never
distinguish single-byte and multibyte characters. Use either
wctomb(3) or the thread-safe wcrtomb(3)
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