overloading InExpression

[H. S. Teoh via Digitalmars-d-learn]

On Wed, Jul 02, 2014 at 02:35:54PM +0000, Vlad Levenfeld via Digitalmars-d-learn wrote:
> On Wednesday, 2 July 2014 at 14:14:57 UTC, Dicebot wrote:
> >struct S
> >{
> >	int opIn_r(int key)
> >	{
> >		return key*2;
> >	}
> >}
> >
> >void main()
> >{
> >	assert((42 in S.init) == 84);
> >}
> 
> Thanks! I wonder, why the _r and lack of documentation?

Don't use opIn_r, that's a relic from D1. Instead, use this:

	struct S {
		int opBinaryRight(string op)(int key)
			if (op == "in")
		{
			return key*2;
		}
	}


T

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