Structs with pointers?

[Dmitry Olshansky]

On 23.01.2011 2:02, bearophile wrote:
>> Is this another compiler bug?
> The situation is nice:
>
> struct Foo1 {}
> struct Foo2 { int x; }
> const struct Foo3 { int* p; }
> struct Foo4 { int* p; }
> void bar1(Foo1 f) {}
> void bar2(Foo2 f) {}
> void bar3(Foo3 f) {}
> void bar4(Foo4 f) {}
> void main() {
>      const f1 = Foo1();
>      bar1(f1); // no error
>      const f2 = Foo2();
>      bar2(f2); // no error
>      const f3 = Foo3();
>      bar3(f3); // no error
>      const f4 = Foo4();
>      bar4(f4); // error
> }
>
> Bye,
> bearophile

The first two are actually OK, since you pass a copy of a value type 
FooX to barX.
If signature was void bar(ref FooX) then it should have failed.
But the third makes me wonder what the *** is going on.

-- 
Dmitry Olshansky