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// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// Test that `Clone` is correctly implemented for builtin types.
// Also test that cloning an array or a tuple is done right, i.e.
// each component is cloned.
fn test_clone<T: Clone>(arg: T) {
let _ = arg.clone();
}
fn foo() { }
#[derive(Debug, PartialEq, Eq)]
struct S(i32);
impl Clone for S {
fn clone(&self) -> Self {
S(self.0 + 1)
}
}
fn main() {
test_clone(foo);
test_clone([1; 56]);
test_clone((1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1));
let a = [S(0), S(1), S(2)];
let b = [S(1), S(2), S(3)];
assert_eq!(b, a.clone());
let a = (
(S(1), S(0)),
(
(S(0), S(0), S(1)),
S(0)
)
);
let b = (
(S(2), S(1)),
(
(S(1), S(1), S(2)),
S(1)
)
);
assert_eq!(b, a.clone());
}
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