Math.TFPUPrecisionMode Enumeration

TFPUPrecisionMode defines how the FPU handles precision.

Pascal

TFPUPrecisionMode = (
  pmSingle,
  pmReserved,
  pmDouble,
  pmExtended
);

C++

enum TFPUPrecisionMode {
  pmSingle,
  pmReserved,
  pmDouble,
  pmExtended
};

File

Math

Description

The FPU (Floating Point Unit) handles floating point calculations. GetPrecisionMode is used to read, and SetPrecisionMode is used to set the precision control mode, with TFPUPrecisionMode defining this mode.

TFPUPrecisionMode can be one of the following values :

Value	Meaning
pmSingle	Single precision : 7 significant digits, exponent from -38 to +38.
pmReserved	Reserved for future use.
pmDouble	Double precision : 15 significant digits, exponent from -308 to +308.
pmExtended	Extended precision : 19 significant digits, exponent from -4932 to +4932.