On Friday, January 21, 2022 at 11:25:13 PM UTC+1 Ian Lance Taylor wrote:
> > Another issue is the implementation of AbsoluteDifference, in
> golang.org/design/43651-type-parameters#absolute-difference.
> > The code is invalid due to #45639, but I suspect that the suggestion to
> use a struct
> >
> > type ComplexAbs[T OrderedNumeric] struct { X T }
> >
> > will not solve the problem.
> > Moreover the code suggested in the issue:
> >
> > func (a ComplexAbs[T]) Abs() ComplexAbs[T] { d :=
> math.Hypot(float64(real(a.X)), float64(imag(a.X))) return
> ComplexAbs[T](complex(d, 0)) }
> >
> > does not compile.
>
> Thanks, I'm going to leave this as is for now. 45639 is still open.
>
>
However it is disallowed in go1.18. In #50790 there is an alternate
working solution.
Thanks
Manlio
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