rust/tests/ui/resolve/no-std-2.rs

// run-pass

#![no_std]

extern crate std;

fn main() {
    let a = core::option::Option::Some("foo");
    a.unwrap();
}
tests: Add missing run-pass annotations 2019-07-26 21:54:25 +00:00			`// run-pass`

syntax: Implement #![no_core] This commit is an implementation of [RFC 1184][rfc] which tweaks the behavior of the `#![no_std]` attribute and adds a new `#![no_core]` attribute. The `#![no_std]` attribute now injects `extern crate core` at the top of the crate as well as the libcore prelude into all modules (in the same manner as the standard library's prelude). The `#![no_core]` attribute disables both std and core injection. [rfc]: https://github.com/rust-lang/rfcs/pull/1184 2015-07-30 00:01:14 +00:00			`#![no_std]`

			`extern crate std;`

			`fn main() {`
			`let a = core::option::Option::Some("foo");`
			`a.unwrap();`
			`}`