Tidy floating point literals

[mgeisler]

Plus, having the .0 makes it easier to scan the code at a glance.

Let me just add that the 123. syntax isn’t used universally: I’m from Denmark and there we always add a trailing 0 to floating point numbers. So a number like 1. looks a little odd to me. I believe the same applies to other European countries.

[bluss]

(1.0 isn’t even a “danish” number, it should be 1,0 then.) I really don’t think the syntax question here is split along country borders.

[mgeisler]

Yes, you’re correct that we use comma instead of period as the decimal point

As a programmer, I’m now used to seeing things like “123.” in other programming languages, but I’ve never felt the need to write floating point numbers that way myself, even if I could. The syntax simply looks (a little) strange and inconsistent to me.

[leonardo]

In many things, it’s best for Rust to avoid being inspired by D.

Copying large chunks of D in Rust is bad idea. But D contains several nice things, ideas and features that’s unwise to reject whole as you say.

[system]

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