System.Math.TSSERoundingMode

• Up to Parent: System.Math

Delphi

TSSERoundingMode = type TRoundingMode;

C++

typedef TRoundingMode TSSERoundingMode;

Properties

Type	Visibility	Source	Unit	Parent
enum typedef	public	System.Math.pas System.Math.hpp	System.Math	System.Math

Description

Enumerates the SSE's floating-point rounding modes.

On 64-bit platforms, the SSE (Streaming SIMD Extensions) instructions handle floating-point calculations. GetSSERoundMode is used to read, and SetSSERoundMode is used to set the SSE's rounding mode.

TSSERoundingMode can be one of the following values defined by TRoundingMode.

Value	Meaning
rmNearest	Rounds to the closest integer value.
rmDown	Rounds toward negative infinity.
rmUp	Rounds toward positive infinity.
rmTruncate	Truncates the value, rounding positive numbers down and negative numbers up.

See Also

• System.Math.GetSSERoundMode
• System.Math.SetSSERoundMode
• System.Math.GetRoundMode
• System.Math.SetRoundMode
• System.Set8087CW
• Floating-Point Number Control Routines
• About Floating-Point Arithmetic
• Floating-Point Rounding Routines
• SSE Registers in FPU pane