std::result vs core::result::Result

Asked May 23 '20 at 23:40

Active May 24 '20 at 00:02

Viewed 91 times

According to https://doc.rust-lang.org/std/result/, the stuct Result is defined at std::result, however:

fn test() -> std::Result<u32, u32> {
    Ok(0)
}

wont compile. I have to change to core::result::Result<u32, u32>

How could I know, by Rust's page for std::result, how to import it?

edited May 24 '20 at 00:02

Shepmaster

asked May 23 '20 at 23:40

Guerlando OCs

2

Result is defined in `std::result::Result` std::result is the module path – Stargateur May 23 '20 at 23:51
1

You don't have to import it; it's [part of the prelude](https://stackoverflow.com/q/36384840/155423). Just type `Result`. – Shepmaster May 24 '20 at 00:03
@Stargateur whats the difference between `core::result::Result` and `std::result::Result`? – Guerlando OCs May 24 '20 at 06:55
there are the same structure, std just reexport it. Like duplicate said, a lot of thing in core are just reexported in std. – Stargateur May 24 '20 at 14:40

0 Answers0