`to!double("0.1") != to!double("0.1000000000000000")` on Windows

[CyberShadow]

trafficstars

This program should print 0:

import std.conv;
import std.stdio;

void main()
{
	auto a = to!double("0.1");
	auto b = to!double("0.1000000000000000");
	writeln(a - b);
}

On Windows, this prints 1.38778e-17.

• Happens with either -m32mscoff and -m64.
• Doesn't happen with dmd (either -m32mscoff or -m64).
• I can reproduce this in Wine too.

[JohanEngelen]

Related (or same?) issue: https://github.com/ldc-developers/ldc/issues/4433