pub struct ExitCode(_);
Expand description
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
sourceimpl ExitCode
impl ExitCode
sourcepub const SUCCESS: ExitCode
pub const SUCCESS: ExitCode
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.
Trait Implementations
sourceimpl Termination for ExitCode
impl Termination for ExitCode
impl Copy for ExitCode
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
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcepub fn borrow_mut(&mut self) -> &mut T
pub fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more