Const Tuples

[bearophile via Digitalmars-d-learn]

Dicebot:

> It would be weird exception of general type system rules with 
> no practical justification I can readily imagine.

I partially disagree. It could be useful to have structural 
typing (http://en.wikipedia.org/wiki/Structural_type_system ) 
only on tuples (and not on structs), because the formal 
definition of tuple goes well with structural typing. This also 
implies the type equivalence of const tuple with a tuple of const 
fields.

Bye,
bearophile