src/test/run-pass/slice-2.rs

   1 // Copyright 2014 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 // Test slicing expressions on slices and Vecs.
  12
  13
  14 fn main() {
  15     let x: &[isize] = &[1, 2, 3, 4, 5];
  16     let cmp: &[isize] = &[1, 2, 3, 4, 5];
  17     assert_eq!(&x[..], cmp);
  18     let cmp: &[isize] = &[3, 4, 5];
  19     assert_eq!(&x[2..], cmp);
  20     let cmp: &[isize] = &[1, 2, 3];
  21     assert_eq!(&x[..3], cmp);
  22     let cmp: &[isize] = &[2, 3, 4];
  23     assert_eq!(&x[1..4], cmp);
  24
  25     let x: Vec<isize> = vec![1, 2, 3, 4, 5];
  26     let cmp: &[isize] = &[1, 2, 3, 4, 5];
  27     assert_eq!(&x[..], cmp);
  28     let cmp: &[isize] = &[3, 4, 5];
  29     assert_eq!(&x[2..], cmp);
  30     let cmp: &[isize] = &[1, 2, 3];
  31     assert_eq!(&x[..3], cmp);
  32     let cmp: &[isize] = &[2, 3, 4];
  33     assert_eq!(&x[1..4], cmp);
  34
  35     let x: &mut [isize] = &mut [1, 2, 3, 4, 5];
  36     {
  37         let cmp: &mut [isize] = &mut [1, 2, 3, 4, 5];
  38         assert_eq!(&mut x[..], cmp);
  39     }
  40     {
  41         let cmp: &mut [isize] = &mut [3, 4, 5];
  42         assert_eq!(&mut x[2..], cmp);
  43     }
  44     {
  45         let cmp: &mut [isize] = &mut [1, 2, 3];
  46         assert_eq!(&mut x[..3], cmp);
  47     }
  48     {
  49         let cmp: &mut [isize] = &mut [2, 3, 4];
  50         assert_eq!(&mut x[1..4], cmp);
  51     }
  52
  53     let mut x: Vec<isize> = vec![1, 2, 3, 4, 5];
  54     {
  55         let cmp: &mut [isize] = &mut [1, 2, 3, 4, 5];
  56         assert_eq!(&mut x[..], cmp);
  57     }
  58     {
  59         let cmp: &mut [isize] = &mut [3, 4, 5];
  60         assert_eq!(&mut x[2..], cmp);
  61     }
  62     {
  63         let cmp: &mut [isize] = &mut [1, 2, 3];
  64         assert_eq!(&mut x[..3], cmp);
  65     }
  66     {
  67         let cmp: &mut [isize] = &mut [2, 3, 4];
  68         assert_eq!(&mut x[1..4], cmp);
  69     }
  70 }