rust/src/test/run-pass/evec-slice.rs
Alex Crichton 9851b4fbbf std: Tweak String implementations
This commit performs a pass over the implementations of the new `String` trait
in the formatting module. Some implementations were removed as a conservative
move pending an upcoming convention about `String` implementations, and some
were added in order to retain consistency across the libraries. Specifically:

* All "smart pointers" implement `String` now, adding missing implementations
  for `Arc` and `Rc`.
* The `Vec<T>` and `[T]` types no longer implement `String`.
* The `*const T` and `*mut T` type no longer implement `String`.
* The `()` type no longer implements `String`.
* The `Path` type's `Show` implementation does not surround itself with `Path
  {}` (a minor tweak).

All implementations of `String` in this PR were also marked `#[stable]` to
indicate that the types will continue to implement the `String` trait regardless
of what it looks like.
2015-01-07 15:24:21 -08:00

56 lines
1.3 KiB
Rust

// Copyright 2012 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.
#![allow(dead_assignment)]
pub fn main() {
let x : &[int] = &[1,2,3,4,5];
let mut z : &[int] = &[1,2,3,4,5];
z = x;
assert_eq!(z[0], 1);
assert_eq!(z[4], 5);
let a : &[int] = &[1,1,1,1,1];
let b : &[int] = &[2,2,2,2,2];
let c : &[int] = &[2,2,2,2,3];
let cc : &[int] = &[2,2,2,2,2,2];
println!("{:?}", a);
assert!(a < b);
assert!(a <= b);
assert!(a != b);
assert!(b >= a);
assert!(b > a);
println!("{:?}", b);
assert!(b < c);
assert!(b <= c);
assert!(b != c);
assert!(c >= b);
assert!(c > b);
assert!(a < c);
assert!(a <= c);
assert!(a != c);
assert!(c >= a);
assert!(c > a);
println!("{:?}", c);
assert!(a < cc);
assert!(a <= cc);
assert!(a != cc);
assert!(cc >= a);
assert!(cc > a);
println!("{:?}", cc);
}