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Endar

C++ Constructor initializer lists

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class CColor
{
public:
	unsigned int color;

	CColor( const CColor& c)
	{
		color = c.color;
	}
};

class A
{
public:
	CColor color;

	A(CColor nc)
		:	color( CColor(nc) )
	{

	}
};


Does this actually invoke the CColor's copy constructor twice? Should it be simply "color( nc )"?

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Actually, I think it copies it 3 times? Once to pass the argument because it isn't by reference . . .

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Quote:
Original post by Squirm
Actually, I think it copies it 3 times? Once to pass the argument because it isn't by reference . . .


depends on where you start counting ;) I just counted the initializer list, if you also count the call to A's ctor then you get three indeed.

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