struct _DOUBLE_FORMAT {
unsigned __int64 Mantissa : 52;/* 0x0:0 8 */
unsigned __int64 Exponent : 11;/* 0x0:52 8 */
unsigned __int64 Sign : 1;/* 0x0:63 8 */
};
/* source: Windows 2000 RC2 DDK Alpha libcntpr.lib CodeView type records; build 2128 per the DDK's ntverp.h */