Re: Destructors, const structs, and opEquals

[Andrei Alexandrescu]

On 12/4/10 6:50 AM, so wrote:
I'm 99.99% certain that it's perfectly legal to pass a temporary to a
function
that takes a const T& and that it's in the standard

Oh that is right, but both are different things.

Say, when you have:

T fun() {...}
void bar(const T&) {...}

bar(fun()) // 1. this is perfectly legal.
const T& a = fun(); // 2. not legal, but still you can do it on some
compilers.

What Don's example is all about as far as i can tell is that D can't do
the first one, somehow.

Second line is legal too. Petru Marginean and I use it to good effect in 
our ScopeGuard idiom (a precursor to D's scope guards).

http://www.drdobbs.com/184403758

Andrei