D's Destructors are What Scott Meyers Warned Us About

[Steven Schveighoffer]

On 5/23/18 9:38 PM, Mike Franklin wrote:
> On Wednesday, 23 May 2018 at 13:12:57 UTC, Steven Schveighoffer wrote:
> 
>> Hm.. that should be fixed. I don't see why we can't just do = T.init, 
>> we should at least be optimizing to this for small enough structs.
> 
> The problem I ran into with this is that if you use T.init directly you 
> end up making copies (postblit) and then needing to destruct those 
> copies since they are temporary.  That's why I had to lower it to 
> simpler byte array primitive.

This is the fool-proof way, but this is a template function! We can 
deduce whether doing the T.init copy is going to call a postblit or 
destructor.

-Steve