1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115

use super::{ArrayLength, GenericArray};
use core::{mem, ptr};
use core::borrow::{Borrow, BorrowMut};
use core::cmp::Ordering;
use core::fmt::{self, Debug};
use core::hash::{Hash, Hasher};
use nodrop::NoDrop;

impl<T: Default, N> Default for GenericArray<T, N>
    where N: ArrayLength<T>
{
    fn default() -> Self {
        unsafe {
            let mut res: NoDrop<GenericArray<T, N>> = NoDrop::new(mem::uninitialized());
            for r in res.iter_mut() {
                ptr::write(r, T::default())
            }
            res.into_inner()
        }
    }
}

impl<T: Clone, N> Clone for GenericArray<T, N>
    where N: ArrayLength<T>
{
    fn clone(&self) -> GenericArray<T, N> {
        unsafe {
            let mut res: NoDrop<GenericArray<T, N>> = NoDrop::new(mem::uninitialized());
            for i in 0..N::to_usize() {
                ptr::write(&mut res[i], self[i].clone())
            }
            res.into_inner()
        }
    }
}
impl<T: Copy, N> Copy for GenericArray<T, N>
    where N: ArrayLength<T>,
          N::ArrayType: Copy
{
}

impl<T: PartialEq, N> PartialEq for GenericArray<T, N>
    where N: ArrayLength<T>
{
    fn eq(&self, other: &Self) -> bool {
        **self == **other
    }
}
impl<T: Eq, N> Eq for GenericArray<T, N> where N: ArrayLength<T> {}

impl<T: PartialOrd, N> PartialOrd for GenericArray<T, N>
    where N: ArrayLength<T>
{
    fn partial_cmp(&self, other: &GenericArray<T, N>) -> Option<Ordering> {
        PartialOrd::partial_cmp(&self, &other)
    }
}

impl<T: Ord, N> Ord for GenericArray<T, N>
    where N: ArrayLength<T>
{
    fn cmp(&self, other: &GenericArray<T, N>) -> Ordering {
        Ord::cmp(&self, &other)
    }
}

impl<T: Debug, N> Debug for GenericArray<T, N>
    where N: ArrayLength<T>
{
    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
        self[..].fmt(fmt)
    }
}

impl<T, N> Borrow<[T]> for GenericArray<T, N>
    where N: ArrayLength<T>
{
    fn borrow(&self) -> &[T] {
        &self[..]
    }
}

impl<T, N> BorrowMut<[T]> for GenericArray<T, N>
    where N: ArrayLength<T>
{
    fn borrow_mut(&mut self) -> &mut [T] {
        &mut self[..]
    }
}

impl<T, N> AsRef<[T]> for GenericArray<T, N>
    where N: ArrayLength<T>
{
    fn as_ref(&self) -> &[T] {
        &self[..]
    }
}

impl<T, N> AsMut<[T]> for GenericArray<T, N>
    where N: ArrayLength<T>
{
    fn as_mut(&mut self) -> &mut [T] {
        &mut self[..]
    }
}

impl<T: Hash, N> Hash for GenericArray<T, N>
    where N: ArrayLength<T>
{
    fn hash<H>(&self, state: &mut H)
        where H: Hasher
    {
        Hash::hash(&self[..], state)
    }
}