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update Termination trait docs

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ZHANGWENTAI 2022-03-22 22:37:17 +08:00
parent 3ea44938e2
commit 6e971a8bc2
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library/std/src/process.rs
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@ -2030,6 +2030,10 @@ pub fn id() -> u32 {
/// ///
/// The default implementations are returning `libc::EXIT_SUCCESS` to indicate /// The default implementations are returning `libc::EXIT_SUCCESS` to indicate
/// a successful execution. In case of a failure, `libc::EXIT_FAILURE` is returned. /// a successful execution. In case of a failure, `libc::EXIT_FAILURE` is returned.
///
/// For the reason that different runtimes have diffrent specificatons on the
/// return value of the `main` function, this trait is likely to be available
/// only on standard library's runtime for type convenience.
#[cfg_attr(not(test), lang = "termination")] #[cfg_attr(not(test), lang = "termination")]
#[unstable(feature = "termination_trait_lib", issue = "43301")] #[unstable(feature = "termination_trait_lib", issue = "43301")]
#[rustc_on_unimplemented( #[rustc_on_unimplemented(