[cfe-dev] A bunch of more or less related issues

[Argyrios Kyrtzidis]

On Jun 29, 2009, at 9:06 AM, Olaf Krzikalla wrote:

> 2. What is the full expression according to ISO in "if (int a =  
> expr)"?
> IMHO it is expr, but I'm not really sure since I saw  
> CXXConditionDeclExpr.


Using just the expr is not correct, consider this case:

class C {
public:
	C(bool b);
	operator bool();			
};

void f() {
	if (C c = true) {
		
	}
}


the condition used for "if" is not 'true' but the return value of  
calling C::operator bool().

-Argiris