ICountedObject.hpp File Reference

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Namespaces

• namespace Exponent
• namespace Exponent::Basics

Classes

• interface Exponent::Basics::ICountedObject

  Interface to a counted object. More...
  

Defines

• #define EXCHANGE_COUNTED_OBJECTS(x, y)   if ((x) != (y)) { if (x) { (x)->dereference(); } (x) = (y); if (x) { (x)->referenced(); } }
• #define FORGET_COUNTED_OBJECT(x)   if(x) { (x)->dereference(); } (x) = NULL;

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Define Documentation

#define EXCHANGE_COUNTED_OBJECTS	(	x,
		y		)	if ((x) != (y)) { if (x) { (x)->dereference(); } (x) = (y); if (x) { (x)->referenced(); } }

Swaps two counted objects, with null pointer check and correct dereferencing of old object

Note:

DO NOT EVER CALL THIS FUNCTION IN THE FOLLOWING FASHION:
ECHANGE_COUNTED_OBJECT(m_memberVariable, SomeClassAccesor::getCountedObject(i));
remember that preprocessors will call this getCountedObject multiple times, which doesnt necessarily give the right results...

Definition at line 96 of file ICountedObject.hpp.

Referenced by Exponent::GUI::Graphics::CImageManager::CImageReference::setImage(), Exponent::GUI::Controls::CMenuItem::setImages(), Exponent::GUI::Controls::CModulatedXYPad::setModulationHandle(), and Exponent::GUI::Controls::CSelectableMenuItem::setUnCheckedImage().

#define FORGET_COUNTED_OBJECT

(

x

)

if(x) { (x)->dereference(); } (x) = NULL;

Dereferences an object and sets it to NULL

Definition at line 102 of file ICountedObject.hpp.

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