getting rid of immutable (or const)

[drug]

05.09.2019 15:46, berni пишет:
> On Thursday, 5 September 2019 at 12:15:51 UTC, drug wrote:
>> One solution could be using either pointer to `const(Point)` or class 
>> here (to avoid pointer using) https://run.dlang.io/is/rfKKAJ
> 
> OK. This are two solutions and although I'll probably not going to use 
> any of those (due to other reasons), I still don't understand, why the 
> original approach does not work. If I've got a book an put it in a box 
> and later I'll get it out again, it's still the same book. So why has a 
> struct changed when I put it into an AA and get it out again? It's not 
> supposed to change...
Because structs are value types so when you put it into an AA you modify 
old value and because it is const/immutable compiler gives an error.

But if you just want to initialize an AA by immutable members then this 
can be usefull to read 
https://dlang.org/spec/hash-map.html#runtime_initialization