wctob - convert wide character to 1-byte multi-byte character

Syntax	#include <stdio.h> #include <wchar.h> int wctob(wint_t c);
	wctob() tests if the character c corresponds to an element of the extended character set whose multi-byte representation consists of one byte in the “initial shift“ state.
Return val.	EOF	if no corresponding multi-byte character of length one exists in the “initial shift“ state for c.
	Otherwise the multi-byte character of length one that corresponds to c.
See also	mblen(), mbtowc(), wcstombs(), wctomb()