btowc - convert single byte to wide character

#include <wchar.h>
wint_t btowc(int c);

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.

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.

mbrtowc(3), mbtowc(3), wctob(3)