src/test/ui/array-slice-vec/slice-2.rs

   1 // run-pass
   2
   3 // Test slicing expressions on slices and Vecs.
   4
   5
   6 fn main() {
   7     let x: &[isize] = &[1, 2, 3, 4, 5];
   8     let cmp: &[isize] = &[1, 2, 3, 4, 5];
   9     assert_eq!(&x[..], cmp);
  10     let cmp: &[isize] = &[3, 4, 5];
  11     assert_eq!(&x[2..], cmp);
  12     let cmp: &[isize] = &[1, 2, 3];
  13     assert_eq!(&x[..3], cmp);
  14     let cmp: &[isize] = &[2, 3, 4];
  15     assert_eq!(&x[1..4], cmp);
  16
  17     let x: Vec<isize> = vec![1, 2, 3, 4, 5];
  18     let cmp: &[isize] = &[1, 2, 3, 4, 5];
  19     assert_eq!(&x[..], cmp);
  20     let cmp: &[isize] = &[3, 4, 5];
  21     assert_eq!(&x[2..], cmp);
  22     let cmp: &[isize] = &[1, 2, 3];
  23     assert_eq!(&x[..3], cmp);
  24     let cmp: &[isize] = &[2, 3, 4];
  25     assert_eq!(&x[1..4], cmp);
  26
  27     let x: &mut [isize] = &mut [1, 2, 3, 4, 5];
  28     {
  29         let cmp: &mut [isize] = &mut [1, 2, 3, 4, 5];
  30         assert_eq!(&mut x[..], cmp);
  31     }
  32     {
  33         let cmp: &mut [isize] = &mut [3, 4, 5];
  34         assert_eq!(&mut x[2..], cmp);
  35     }
  36     {
  37         let cmp: &mut [isize] = &mut [1, 2, 3];
  38         assert_eq!(&mut x[..3], cmp);
  39     }
  40     {
  41         let cmp: &mut [isize] = &mut [2, 3, 4];
  42         assert_eq!(&mut x[1..4], cmp);
  43     }
  44
  45     let mut x: Vec<isize> = vec![1, 2, 3, 4, 5];
  46     {
  47         let cmp: &mut [isize] = &mut [1, 2, 3, 4, 5];
  48         assert_eq!(&mut x[..], cmp);
  49     }
  50     {
  51         let cmp: &mut [isize] = &mut [3, 4, 5];
  52         assert_eq!(&mut x[2..], cmp);
  53     }
  54     {
  55         let cmp: &mut [isize] = &mut [1, 2, 3];
  56         assert_eq!(&mut x[..3], cmp);
  57     }
  58     {
  59         let cmp: &mut [isize] = &mut [2, 3, 4];
  60         assert_eq!(&mut x[1..4], cmp);
  61     }
  62 }