exitcode

System exit code constants as defined by sysexits.h

Documentation is available here

Installing from crates.io

[dependencies] exitcode = "1.1.2"

Example

```rust extern crate exitcode;

use std::process;

pub fn parseintorreturnerrorexitcode(s: String) -> Result { match s.parse::() { Ok(i) => Ok(i), Err() => Err(exitcode::USAGE) }

}

pub fn main() {

match parse_int_or_return_error_exitcode("123".to_string()) {
    Ok(i) => println!("Parsed: {}", i),
    Err(code) => {
        println!("Parse error.  Exiting with code: {}", code);
        process::exit(code);
    }
}

match parse_int_or_return_error_exitcode("foo".to_string()) {
    Ok(i) => println!("Parsed: {}", i),
    Err(code) => {
        println!("Parse error.  Exiting with code: {}", code);
        process::exit(code);
    }
}

println!("Exiting with code: {}", exitcode::OK);
process::exit(exitcode::OK);

} ```