wctomb - convert a wide character to a multibyte character.
#include <stdlib.h> int wctomb(char *s, wchar_t wchar));
The wctomb() function converts a wide character wchar into a multibyte character and, if s is not NULL, stores the multi- byte character representation in s.
wctomb() returns the number of bytes in the multibyte char- acter or -1 if the wide character is not valid.
SVID 3, ISO 9899
mblen(3), mbstowcs(3), mbtowc(3),