Not a compiler bug.

[mw]

On Thursday, 13 August 2020 at 08:07:56 UTC, John Colvin wrote:
> The windows version is probably different because you are 
> building a 32 bit exe and therefore size_t is uint, which will 
> be promoted to long in the division.

$ /mnt/c/project/dmd2/windows/bin64/dmd.exe --version
DMD64 D Compiler v2.092.0-dirty
Copyright (C) 1999-2020 by The D Language Foundation, All Rights 
Reserved written by Walter Bright


> If you do a bit of a search on the forums you'll find this 
> issue having come up many times before and you might find those 
> discussions informative.

Sigh, if D continue behave like this, it can hardly be called a 
C++ improvement.