Sign

Return sign of argument

Declaration

Source position: math.pp line 238

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

Description

Sign returns the sign of it's argument, which can be an Integer, 64 bit integer, or a double. The returned value is an integer which is -1, 0 or 1, and can be used to do further calculations with.