Old problem with performance

[Daniel Keep]

Rainer Deyke wrote:
> Tom S wrote:
>> Rainer Deyke wrote:
>>> If T was a reference type, 'c1' and 'c2' now share state, and it's up to
>>> the programmer to write code to prevent this.
>> No, they don't. Each instance of C has its own copy of the 't' reference.
> 
> That's like saying object slicing is an intentional feature.  Given the
> intended semantics of 'C', it's a bug.

It's not a bug.  There are differences between value types and reference
types.  Just like how there are differences between atomic types and
aggregate types.  Or constant types and mutable types.

If you want a distinct copy of something, then copy it.

  -- Daniel