[][src]Struct std::process::ExitCode

pub struct ExitCode(_);
🔬 This is a nightly-only experimental API. (process_exitcode_placeholder #48711)

This type represents the status code a process can return to its parent under normal termination.

Numeric values used in this type don't have portable meanings, and different platforms may mask different amounts of them.

For the platform's canonical successful and unsuccessful codes, see the SUCCESS and FAILURE associated items.

Warning: While various forms of this were discussed in RFC #1937, it was ultimately cut from that RFC, and thus this type is more subject to change even than the usual unstable item churn.

Implementations

impl ExitCode[src]

pub const SUCCESS: ExitCode[src]

🔬 This is a nightly-only experimental API. (process_exitcode_placeholder #48711)

The canonical ExitCode for successful termination on this platform.

Note that a ()-returning main implicitly results in a successful termination, so there's no need to return this from main unless you're also returning other possible codes.

pub const FAILURE: ExitCode[src]

🔬 This is a nightly-only experimental API. (process_exitcode_placeholder #48711)

The canonical ExitCode for unsuccessful termination on this platform.

If you're only returning this and SUCCESS from main, consider instead returning Err(_) and Ok(()) respectively, which will return the same codes (but will also eprintln! the error).

Trait Implementations

impl Clone for ExitCode[src]

impl Copy for ExitCode[src]

impl Debug for ExitCode[src]

impl Termination for ExitCode[src]

Auto Trait Implementations

impl RefUnwindSafe for ExitCode

impl Send for ExitCode

impl Sync for ExitCode

impl Unpin for ExitCode

impl UnwindSafe for ExitCode

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
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impl<T> Borrow<T> for T where
    T: ?Sized
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impl<T> BorrowMut<T> for T where
    T: ?Sized
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impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
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impl<T> ToOwned for T where
    T: Clone
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type Owned = T

The resulting type after obtaining ownership.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
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type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.