Function encoding_c::encoder_max_buffer_length_from_utf16_without_replacement

#[no_mangle]
pub unsafe extern fn encoder_max_buffer_length_from_utf16_without_replacement(encoder: *const Encoder,
                                                                              u16_length: usize)
                                                                              -> usize

Query the worst-case output size when encoding from UTF-16 without replacement.

Returns the size of the output buffer in bytes that will not overflow given the current state of the encoder and u16_length number of additional input code units.