PeerStreamer

 * \def GET_UTF16(val, GET_16BIT, ERROR)

 * Converts a UTF-16 character (2 or 4 bytes) to its 32-bit UCS-4 encoded form

 * \param val is the output and should be of type uint32_t. It holds the converted

 * UCS-4 character and should be a left value.

 * \param GET_16BIT gets two bytes of UTF-16 encoded data converted to native endianness.

 * It can be a function or a statement whose return value or evaluated value is of type

 * uint16_t. It will be executed up to 2 times.

 * \param ERROR action that should be taken when an invalid UTF-16 surrogate is

 * returned from GET_BYTE. It should be a statement that jumps out of the macro,

 * like exit(), goto, return, break, or continue.

 */

#define GET_UTF16(val, GET_16BIT, ERROR)\

    val = GET_16BIT;\

    {\

        unsigned int hi = val - 0xD800;\

        if (hi < 0x800) {\

            val = GET_16BIT - 0xDC00;\

            if (val > 0x3FFU || hi > 0x3FFU)\

                ERROR\

            val += (hi<<10) + 0x10000;\

        }\

    }\

/*!