mod utils;
use std::error;
use std::sync::Arc;

fn main() {
	let mut i:isize = 0;
	let mut d:f64 = 0;
	match (|| -> Result<(), Arc<dyn error::Error>>{
		i = stoi(args[1])?;
		d = stod(args[2])?;
		println!("{}", format!("i + d = {0:f}", (i) as f64 + d));
		return Ok(());
	})() {
		Ok(()) => {},
		Err(ex) => {
			if let Some(ex_) = utils::isCustomErrorType(ex_.clone(), utils::CustomError::NumberFormatError("".to_string())){
				println!("Can't convert command line argument!");
			} else {
				println!("Don't know what went wrong!");
			}
		}
	};
	// Rust doesn't support true finally blocks
	{
		println!("This statement always executes.");
	}
}