- FGPhysicalProperty& operator = ( const FGPhysicalProperty& p ); // assignment of a Point3D
- FGPhysicalProperty& operator += ( const FGPhysicalProperty& p ); // incrementation by a Point3D
- FGPhysicalProperty& operator -= ( const FGPhysicalProperty& p ); // decrementation by a Point3D
- FGPhysicalProperty& operator *= ( const double& d ); // multiplication by a constant
- FGPhysicalProperty& operator /= ( const double& d ); // division by a constant
-
- friend FGPhysicalProperty operator - (const FGPhysicalProperty& p); // -p1
- friend bool operator == (const FGPhysicalProperty& a, const FGPhysicalProperty& b); // p1 == p2?
+ FGPhysicalProperty& operator = ( const FGPhysicalProperty& p ); // assignment of a FGPhysicalProperty
+ FGPhysicalProperty& operator += ( const FGPhysicalProperty& p ); // incrementation by a FGPhysicalProperty
+ FGPhysicalProperty& operator -= ( const FGPhysicalProperty& p ); // decrementation by a FGPhysicalProperty
+ FGPhysicalProperty& operator *= ( const double d ); // multiplication by a constant
+ FGPhysicalProperty& operator /= ( const double d ); // division by a constant
+
+ friend FGPhysicalProperty operator - (const FGPhysicalProperty& p); // -p1
+ friend bool operator == (const FGPhysicalProperty& a, const FGPhysicalProperty& b); // p1 == p2?