Re: AA initialization

[Puming via Digitalmars-d-learn]

On Wednesday, 6 August 2014 at 14:38:34 UTC, Marc Schütz wrote:
On Wednesday, 6 August 2014 at 13:15:27 UTC, Kozzi11 wrote:
AFAIK there is no easy way to do it. Maybe it would be fine to 
add some function to phobos. Something like this:


auto initAA(VT,KT)() {

        static struct Entry
        {
                Entry *next;
                size_t hash;
        }
        
        static struct Impl
        {
                Entry*[] buckets;
                size_t nodes;
                TypeInfo _keyti;
                Entry*[4] binit;
                
		@property const(TypeInfo) keyti() const @safe pure nothrow 
@nogc
                { return _keyti; }
        }

        static struct AA
        {
                Impl* impl;
        }

        VT[KT] aaa;
        AA* aa = cast(AA*)&aaa;
        if (aa.impl is null)
        {   aa.impl = new Impl();
                aa.impl.buckets = aa.impl.binit[];
        }
        aa.impl._keyti = cast() typeid(aaa);
        return aaa;
}


Or it would be fine if I could write something like this: auto 
aa = new VT[KT]();

`string[string] aa = [];` would be fine, too, but it currently 
doesn't compile.

Thanks for your clarification (and also in the other thread), so 
this is an implementation issue for builtin AAs.