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鈥檚 runtime for convenience. Other runtimes are not required
to provide similar functionality.