Re: [boost] type_traits: workaround bias

From: David Abrahams (david.abrahams_at_[hidden])
Date: 2002-03-13 14:28:14

> BOOST_STATIC_ASSERT(sizeof(f<X>(wraps<X&>())) == 1);
oops, missed this-------------^^^

It wasn't an SP5 thing, it was the above.
However, how can we apply that? To even write that, you not only need to
know that X is a reference, you need to know what it refers to!

-Dave

----- Original Message -----
From: "Aleksey Gurtovoy" <alexy_at_[hidden]>

> This compiles:
>
> #include "boost/static_assert.hpp"
>
> struct X;
> template <class T> struct wraps{};
> template <class T> char f(wraps<T&>);
> template <class T> char(& f(void const volatile*))[2];
>
> int main()
> {
>     BOOST_STATIC_ASSERT(sizeof(f<X>(wraps<X&>())) == 1);
>     return 0;
> }
>
>
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