[cxx-abi-dev] Mangling sizeof

[Jason Merrill]

Jason Merrill wrote:
> No, it would only affect sizeof (expression).

Specifically, something like this:

template <int I> struct A { };
template <class T> A<sizeof T(1)> f() { }
int main()
{
   f<int>();
}

Few uses of sizeof(expression) have been manglable at all in the past; 
this is one, and I don't know why anyone would write this rather than 
just A<sizeof T>.  I can't think of another example.

Jason