From slices to perfect imitators: opByValue

[bearophile via Digitalmars-d]

Andrei Alexandrescu:

> That's an interesting idea. More generally, there's the notion 
> that making user-defined types as powerful as built-in types is 
> a Good Thing(tm).

Regarding the management of const for library-defined types, 
sometimes I'd like the type T1 to be seen as equal to the type 
T2, this could save me some hassles during the usage of tuples:

alias T1 = const Tuple!(int, int);
alias T2 = Tuple!(const int, const int);

I think T1 and T2 should be equivalent for built-in tuples.

Bye,
bearophile