Can 'impl Display' take precision arguments?

Question

thejpster opened this issue 8 years ago · 4 comments

It would be nice if println!("{0.3}", temp) gave "0.000°C". I have no idea if this is possible.

Answer 1 · 2017-08-31T18:17:47.000Z

I'm going to have a look at this one.

Answer 2 · 2017-09-02T22:14:54.000Z

See the precision branch for work in progress.

Answer 3 · 2017-09-10T10:41:39.000Z

I can pull width and decimal places, but not padding. Surely there's a way to pass the whole args variable to write.

Answer 4 · 2017-09-25T11:28:18.000Z

Ah. It's easy when you know how.
Call v.fmt(f), for some value v.
Fixed in weight_and_mass branch.