Trait std::process::Termination
1.61.0 · source · pub trait Termination {
// Required method
fn report(self) -> ExitCode;
}
Expand description
A trait for implementing arbitrary return types in the main
function.
The C-main function only supports returning integers.
So, every type implementing the Termination
trait has to be converted
to an integer.
The default implementations are returning libc::EXIT_SUCCESS
to indicate
a successful execution. In case of a failure, libc::EXIT_FAILURE
is returned.
Because different runtimes have different specifications on the return value
of the main
function, this trait is likely to be available only on
standard library’s runtime for convenience. Other runtimes are not required
to provide similar functionality.