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return value, not const reference, if return type is POD or ptr

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returning reference to POD types can be in fact slower than returning value.
This commit is contained in:
Andrzej Rybczak
2009-03-10 22:20:09 +01:00
parent 5e29d251c3
commit d50dcac5a2
3 changed files with 10 additions and 10 deletions
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12
src/screen.h
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@@ -33,7 +33,7 @@ class BasicScreen
BasicScreen() : hasToBeResized(0) { }
virtual ~BasicScreen() { }
virtual void *&Cmp() = 0;
virtual void *Cmp() = 0;
virtual void Init() = 0;
virtual void SwitchTo() = 0;
@@ -69,9 +69,9 @@ template <class WindowType> class Screen : public BasicScreen
Screen() : w(0) { }
virtual ~Screen() { }
virtual void *&Cmp();
virtual void *Cmp();
WindowType *&Main();
WindowType *Main();
virtual void Refresh();
virtual void RefreshWindow();
@@ -82,12 +82,12 @@ template <class WindowType> class Screen : public BasicScreen
WindowType *w;
};
template <class WindowType> void *&Screen<WindowType>::Cmp()
template <class WindowType> void *Screen<WindowType>::Cmp()
{
return *(void **)(void *)&w;
return w;
}
template <class WindowType> WindowType *&Screen<WindowType>::Main()
template <class WindowType> WindowType *Screen<WindowType>::Main()
{
return w;
}