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http://static.rust-lang.org/doc/master/std/fmt/index.html#formatting-parameters http://static.rust-lang.org/doc/master/std/fmt/index.html#fo... `println!("{:04
by mhaymo 12y ago
http://static.rust-lang.org/doc/master/std/fmt/index.html#formatting-parameters http://static.rust-lang.org/doc/master/std/fmt/index.html#fo...
`println!("{:04d}", 1);` prints "0001". Is that what you're asking?
- Someone 12y agoI think that's what he is asking. Full details at http://static.rust-lang.org/doc/0.10/std/fmt/index.html http://static.rust-lang.org/doc/0.10/std/fmt/index.html By the way, the Rust docs look nice, but finding this was harder than it should be. After searching for 'println', I got at http://static.rust-lang.org/doc/0.10/std/index.html?search=Println http://static.rust-lang.org/doc/0.10/std/index.html?search=P..., which led me to http://static.rust-lang.org/doc/0.10/std/macros/macro.println.html http://static.rust-lang.org/doc/0.10/std/macros/macro.printl..., which says as good as nothing. The other search results (http://static.rust-lang.org/doc/0.10/std/io/stdio/fn.println.html http://static.rust-lang.org/doc/0.10/std/io/stdio/fn.println... and http://static.rust-lang.org/doc/0.10/std/io/stdio/fn.println_args.html http://static.rust-lang.org/doc/0.10/std/io/stdio/fn.println...) are similarly uninformative. It would have helped if the text "For more information, see std::fmt and std::io::stdio" on that first page had hyperlinks. Now, I had to search for "std::fmt" and wade through a sea of results to get at that first page.
- steveklabnik 12y agoMacro documentation is a little bit... off at the moment. :/
- acqq 12y agoYes. Now as it's mentioned "This is a programmer specified conversion which uses the `Show` trait, which works a bit like `toString` in Java." Do I get the content of { } passed to my custom Show, in order to implement all the formatting possibilities? Hint: explaining the mechanisms of handling such common tasks we can really learn a lot about the language. I'd be happy if the tutorial presents the solutions to such real and common tasks.