Although the interface supports stateful multibyte encodings, an implementation may support only stateless multibyte encodings. Such an implementation may raise Invalid when any of the functions that take a state argument are called in a locale that uses a stateful encoding. Invalid indicates an attempt was made to convert from an invalid multibyte encoding, or from a multibyte encoding with no corresponding encoding in the target type. Conversion always begins in the initial state. This function corresponds to ANSI C mbstowcs .
Conversion always begins in the initial state.
This function corresponds to ANSI C wcstombs . This function corresponds to the ISO C function mbrlen . This function corresponds to the ISO C function mbrtowc . This function corresponds to the ISO C function mbsrtowcs . The new state st' is the state after extraction of the wide character.