My least favorite Rust type

Post by estebank » Mon, Sep 21, 2020, 7:26 PM UTC

  error: this range is empty so it will yield no values
   --> src/main.rs:2:9
    |
  2 | let x = 5..0;
    |         ^^^^
    |
    = note: `#[deny(clippy::reversed_empty_ranges)]` on by default
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#reversed_empty_ranges
  help: consider using the following if you are attempting to iterate over this range in reverse
    |
  2 | let x = (0..5).rev();
    |         ^^^^^^^^^^^^

Post by adamnemecek » Mon, Sep 21, 2020, 7:28 PM UTC

tgb wrote: post #8

Why does Rust allow Ranges for types that don't have comparators in the first place?

Post by dep_b » Mon, Sep 21, 2020, 7:28 PM UTC

Post by adamnemecek » Mon, Sep 21, 2020, 7:29 PM UTC

the_hoser wrote: post #17

adamnemecek wrote: post #13

Earlier quoted context omitted.

You should take him seriously, he has some really good ideas.

He has some really good fantasies. But all he has is words.

Post by anoncareer0212 » Mon, Sep 21, 2020, 7:30 PM UTC

the_hoser wrote: post #15

eindiran wrote: post #11

Earlier quoted context omitted.

I don't know anything about Johnathan Blow, so could you explain why you have a hard time taking him seriously about PL design?

Because I can't download a compiler for his language and try out his ideas. I've designed fantasy programming languages, too, but you don't see me telling everyone on the internet that will listen to me about them, dragging other PL designers that have actually released working code through the mud as I do. It's a simple matter of put up or shut up.