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I should have phrased the question more specifically: Why is the user
defined conversion operator not called instead?

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<div dir=3D"ltr">I should have phrased the question more specifically: Why =
is the user defined conversion operator not called instead?</div>

<p></p>

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On 07.02.2018 10:32, Jakob Riedle wrote:
> Hi Folks,
>
> recently, it struck me, when I tried to do something like this:
> https://godbolt.org/g/ZS3M6t
> Is there any particular reason, Non-Type Template Parameters will/can
> not be implicitly casted?
>
> Maybe, you have an idea, why this is the way it is and whether it has
> been discussed before?
>
> I look forward to your feedback.
>
> Thank you,
> Jakob
>

They are implicitly casted, but what you wrote is a function
declaration: https://godbolt.org/g/oXymN6

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Thank you for your quick reply, Jonathan!

But wait, where is the difference to that? https://godbolt.org/g/ewc6EQ
<https://godbolt.org/g/BnvhgC>
The compiler clearly knows, the supplied thing has to be a value, why does
it not act accordingly?

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<div dir=3D"ltr">Thank you for your quick reply, Jonathan!<div><br></div><d=
iv>But wait, where is the difference to that?=C2=A0<a href=3D"https://godbo=
lt.org/g/BnvhgC">https://godbolt.org/g/ewc6EQ</a></div><div>The compiler cl=
early knows, the supplied thing has to be a value, why does it not act acco=
rdingly?</div></div>

<p></p>

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I got the point, behaviour cannot change, because it would then become
ambiguous: https://godbolt.org/g/P9uq8R

Thank you for your help, though!

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<div dir=3D"ltr">I got the point, behaviour cannot change, because it would=
 then become ambiguous:=C2=A0<a href=3D"https://godbolt.org/g/P9uq8R">https=
://godbolt.org/g/P9uq8R</a><div><br></div><div>Thank you for your help, tho=
ugh!</div></div>

<p></p>

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