UTF16_IS_SURROGATE_SECOND   33 enc/utf_16be.c #define UTF16_IS_SURROGATE_SECOND(c)   (((c) & 0xfc) == 0xdc)
UTF16_IS_SURROGATE_SECOND   33 enc/utf_16le.c #define UTF16_IS_SURROGATE_SECOND(c)   (((c) & 0xfc) == 0xdc)