status of "isComplex" in traits ?? (we have isFloatingPoint, for example)

[H. S. Teoh]

On Wed, Aug 18, 2021 at 05:22:31PM +0000, james.p.leblanc via Digitalmars-d wrote:
> Dear All,
> 
> We indeed have **"isFloatingPoint"**, and **"isIntegral"** in
> std.traits.
> 
> But, what is the status/thinking about having **"isComplex"** included
> in std.traits (... or ... potentially std.complex ??).
> 
> I ask because, there are recommendations that we should start using
> Complex!double, Complex!float ... so perhaps this is a good time for a
> formal home for "isComplex" ??

There's no need, you could just write:

	static if (is(T == Complex!U, U)) {
		// You can refer to U here to get at the type Complex
		// was instantiated with.
	}

This has the added benefit of unpacking the parameter U for you.


T

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