System.Math.Sign

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Delphi

function Sign(const AValue: Integer): TValueSign;
function Sign(const AValue: Int64): TValueSign;
function Sign(const AValue: Single): TValueSign;
function Sign(const AValue: Double): TValueSign;
function Sign(const AValue: Extended): TValueSign;

C++

extern DELPHI_PACKAGE TValueSign __fastcall Sign(const int AValue)/* overload */;

Properties

Type	Visibility	Source	Unit	Parent
function	public	System.Math.pas System.Math.hpp	System.Math	System.Math

Description

Indicates whether a numeric value is positive, negative, or zero.

Use Sign to test the sign of a numeric value. Sign returns one of the following constants defined for the TValueSign type:

• ZeroValue (0), if AValue is zero.
• PositiveValue (1), if AValue is greater than zero.
• NegativeValue (-1), if AValue is less than zero.

See Also

• System.Math.IsZero
• System.Math.TValueSign
• Mathematical Routines