Type Definition libxml::bindings::xmlCharEncodingOutputFunc

type xmlCharEncodingOutputFunc = Option<unsafe extern "C" fn(out: *mut c_uchar, outlen: *mut c_int, in_: *const c_uchar, inlen: *mut c_int) -> c_int>;

xmlCharEncodingOutputFunc: @out: a pointer to an array of bytes to store the result @outlen: the length of @out @in: a pointer to an array of UTF-8 chars @inlen: the length of @in

Take a block of UTF-8 chars in and try to convert it to another encoding. Note: a first call designed to produce heading info is called with in = NULL. If stateful this should also initialize the encoder state.

Returns the number of bytes written, -1 if lack of space, or -2 if the transcoding failed. The value of @inlen after return is the number of octets consumed if the return value is positive, else unpredictiable. The value of @outlen after return is the number of octets produced.