Compiler gets confused with ambiguity when `int` matches both `real` and `float`.

[Muld]

On Saturday, 23 December 2017 at 07:25:34 UTC, IM wrote:
> The following expression:
>
> import std.math : sqrt;
> sqrt(400);
>
> produces the following compiler error:
>
> std.math.sqrt called with argument types (int) matches both:
> /usr/include/dmd/phobos/std/math.d(1592,7):     
> std.math.sqrt(float x)
> and:
> /usr/include/dmd/phobos/std/math.d(1598,6):     
> std.math.sqrt(real x)
>
> Shouldn't it just pick one according to some defined rules?

C++ complains the same between float and double. Just put 400.0f 
or whatever precision you want to use. I think it's better that 
it doesn't just pick one.