Struct std::process::ExitCode [−][src]
pub struct ExitCode(_);
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.
Methods
impl ExitCode[src]
impl ExitCodepub const SUCCESS: ExitCode
SUCCESS: ExitCode = ExitCode(<imp::ExitCode>::SUCCESS)
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
FAILURE: ExitCode = ExitCode(<imp::ExitCode>::FAILURE)
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 Clone for ExitCodefn clone(&self) -> ExitCode[src]
fn clone(&self) -> ExitCodeReturns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)1.0.0[src]
fn clone_from(&mut self, source: &Self)Performs copy-assignment from source. Read more
impl Copy for ExitCode[src]
impl Copy for ExitCodeimpl Debug for ExitCode[src]
impl Debug for ExitCodefn fmt(&self, f: &mut Formatter) -> Result[src]
fn fmt(&self, f: &mut Formatter) -> ResultFormats the value using the given formatter. Read more
impl Termination for ExitCode[src]
impl Termination for ExitCode