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int wctob(wint_t c);
The 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 international-
ized programs. Internationalized programs must never distinguish sin-
gle-byte and multibyte characters.
The wctob() function returns the single-byte representation of c, if it
exists, of EOF otherwise.
The behavior of wctob() depends on the LC_CTYPE category of the current
This function should never be used. Internationalized programs must
never distinguish single-byte and multibyte characters. Use either
wctomb(3) or the thread-safe wcrtomb(3) instead.
btowc(3), wcrtomb(3), wctomb(3)
GNU 2011-09-22 WCTOB(3)