struct inheritance need?

[Weed]

bearophile пишет:
 > Weed:
 >> Planned in the future to implement inheritance of structs or the 
static creation of classes?
 >
 > Inheritance of structs: I think it's not planned. Structs in D are
meant to be used for different things than classes.
 > Yet, as time passes structs are gaining more power: you can't believe
 >
that very recently they have gained constructors/destructors too in D2.
Probably in a system language conceptual purity isn't much appreciated :-)
 >

I believe that the opportunity to place an object in memory, stack or 
heap is more important than the struggle against "splicing".

I think not worth taking structs and classes from C#. May be bytecode 
interpreter C# does not show the difference in speed between the 
allocation of memory by a small object + its using and the use of a 
static object, so developers C# decided to do so as done. (but I am not 
a specialist in the design of compilers :))

 > Static creation of classes (I think you mean creation of objects): it
 > sounds like an interesting thing, I know of a system language that
 > allows the creation of objects only at compile-time, and at
 > compile-time it also performs several space optimizations among such
 > objects (and such space optimizations often improve running speed a
 > little).

And in fact we come to making structs and classes similar except that 
classes can not be assigned by value.

Such an option I like.