Comment 16 for bug 541425

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In , Bangerth (bangerth) wrote :

(In reply to comment #4)
> template<typename T> int cmp1(T a, T b);
> template<typename T> int cmp2(T a, T b);
> template<typename T, int (*cmp)(T, T) = cmp1> struct A { };

I'm confused why this would be an overload set. cmp1 is a template so I
can't see how this code would even begin to be valid without specifying
the template argument in the default argument...

W.