Re: PrimitiveRef ?

[Andre via Digitalmars-d-learn]

Thanks a lot.

I read it in the D Cookbook from Adam D. Ruppe.
In the chapter of memory management there is a topic,
how to build reference counted objects. Here this
construct is explained.

Kind regards
André

On Monday, 23 March 2015 at 20:58:48 UTC, Namespace wrote:

Something like that?

struct PrimitiveRef(T)
{
        private T* _value;

        @property
        ref inout(T) get() inout pure nothrow {
                assert(_value);
                
                return *_value;
        }
        
        alias get this;
        
        this(T val) {
                _value = new T(val);
        }
}

alias BoolRef = PrimitiveRef!bool;

void test(BoolRef b)
{
        b = true;
}

void main()
{
        BoolRef b = false;
        test(b);
        assert(b == true);      
}