pub fn all_false() -> [bool; LEN] {
[false; _]
}
Just like the principles for when _ is permitted as a kind, _ will not be permitted as an argument to const generics when in a signature, the workforce wrote:
// This isn't allowed
pub const fn all_false() -> [bool; _] {
[false; LEN]
}
// Neither is that this
pub const ALL_FALSE: [bool; _] = all_false::();
Additionally in Rust 1.89, doctests now might be examined when working cargo take a look at --doc --target other_target. This may occasionally end in some quantity of breakage because of “would-be-failing” doctests now being examined. Failing assessments could be disabled by annotating the doctest with ignore-. The workforce offered this instance:
/// ```ignore-x86_64
/// panic!("one thing")
/// ```
pub fn my_function() { }
Rust 1.89 follows the June 26 launch of Rust 1.88, which featured help for bare features. Extra options in Rust 1.89 embrace:
