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From: liam_herron on 6 Jul 2010 11:18
Why does this compile when I define the body of the constructor in the
header versus
when I define the body of the constructor in the cpp file?

// Works

class A
{
public:
A() {f();}
virtual ~A() {}
virtual void f() = 0;
int a1_;
};

// Generates Linker Error
class A2
{
public:
A2();
virtual ~A2() {}
virtual void f() = 0;
int a2_;
};

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Prev: Is the Mixin pattern accepted in all camps?
Next: will taking the address of the first element of a string break COW strings?