New integer promotion rules

[Rubn]

On Wednesday, 17 January 2018 at 20:30:07 UTC, rumbu wrote:
> And here is why is bothering me:
>
> auto max = isNegative ? cast(Unsigned!T)(-T.min) : 
> cast(Unsigned!T)T.max);
>
> The generic code above (which worked for all signed integral 
> types T in 2.077) must be rewritten like this in 2.078:
>
> static if (T.sizeof >= 4)
>    auto max = isNegative ? cast(Unsigned!T)(-T.min) : 
> cast(Unsigned!T)T.max;
> else
>    auto max = isNegative ? cast(Unsigned!T)(-cast(int)T.min) : 
> cast(Unsigned!T)T.max;
>
> Now I have to translate an 1-liner in a 4-liner all around my 
> project.

Or write some wrapper code, which you prob should have done in 
the first place if you use that all around your project:

auto max = myMaxFunc!(isNegative, T);