Implicit conversion of concatenation result to immutable

[Ali Çehreli]

On 4/1/21 3:44 PM, Per Nordlöw wrote:
> On Thursday, 1 April 2021 at 22:35:57 UTC, Steven Schveighoffer wrote:
>> Yes, always an allocation. See point 5 here: 
>> https://dlang.org/spec/arrays.html#array-concatenation
> 
> Good, then the implicit conversion should be allowed. Anybody up for the 
> job? If not, I'm gonna look into it.

As I mentioned elsewhere in this thread, the element type must not have 
indirections though. If S is a struct with indirections, concatenating 
const(S)[] should still produce const(S)[].

Ali