1use core::borrow::{Borrow, BorrowMut};
2use core::cmp::Ordering;
3use core::fmt::{self, Debug};
4use core::hash::{Hash, Hasher};
5
6use super::{ArrayLength, GenericArray};
7
8use crate::functional::*;
9use crate::sequence::*;
10
11impl<T: Default, N> Default for GenericArray<T, N>
12where
13 N: ArrayLength<T>,
14{
15 #[inline(always)]
16 fn default() -> Self {
17 Self::generate(|_| T::default())
18 }
19}
20
21impl<T: Clone, N> Clone for GenericArray<T, N>
22where
23 N: ArrayLength<T>,
24{
25 fn clone(&self) -> GenericArray<T, N> {
26 self.map(Clone::clone)
27 }
28}
29
30impl<T: Copy, N> Copy for GenericArray<T, N>
31where
32 N: ArrayLength<T>,
33 N::ArrayType: Copy,
34{
35}
36
37impl<T: PartialEq, N> PartialEq for GenericArray<T, N>
38where
39 N: ArrayLength<T>,
40{
41 fn eq(&self, other: &Self) -> bool {
42 **self == **other
43 }
44}
45impl<T: Eq, N> Eq for GenericArray<T, N> where N: ArrayLength<T> {}
46
47impl<T: PartialOrd, N> PartialOrd for GenericArray<T, N>
48where
49 N: ArrayLength<T>,
50{
51 fn partial_cmp(&self, other: &GenericArray<T, N>) -> Option<Ordering> {
52 PartialOrd::partial_cmp(self.as_slice(), other.as_slice())
53 }
54}
55
56impl<T: Ord, N> Ord for GenericArray<T, N>
57where
58 N: ArrayLength<T>,
59{
60 fn cmp(&self, other: &GenericArray<T, N>) -> Ordering {
61 Ord::cmp(self.as_slice(), other.as_slice())
62 }
63}
64
65impl<T: Debug, N> Debug for GenericArray<T, N>
66where
67 N: ArrayLength<T>,
68{
69 fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
70 self[..].fmt(fmt)
71 }
72}
73
74impl<T, N> Borrow<[T]> for GenericArray<T, N>
75where
76 N: ArrayLength<T>,
77{
78 #[inline(always)]
79 fn borrow(&self) -> &[T] {
80 &self[..]
81 }
82}
83
84impl<T, N> BorrowMut<[T]> for GenericArray<T, N>
85where
86 N: ArrayLength<T>,
87{
88 #[inline(always)]
89 fn borrow_mut(&mut self) -> &mut [T] {
90 &mut self[..]
91 }
92}
93
94impl<T, N> AsRef<[T]> for GenericArray<T, N>
95where
96 N: ArrayLength<T>,
97{
98 #[inline(always)]
99 fn as_ref(&self) -> &[T] {
100 &self[..]
101 }
102}
103
104impl<T, N> AsMut<[T]> for GenericArray<T, N>
105where
106 N: ArrayLength<T>,
107{
108 #[inline(always)]
109 fn as_mut(&mut self) -> &mut [T] {
110 &mut self[..]
111 }
112}
113
114impl<T: Hash, N> Hash for GenericArray<T, N>
115where
116 N: ArrayLength<T>,
117{
118 fn hash<H>(&self, state: &mut H)
119 where
120 H: Hasher,
121 {
122 Hash::hash(&self[..], state)
123 }
124}
125
126macro_rules! impl_from {
127 ($($n: expr => $ty: ty),*) => {
128 $(
129 impl<T> From<[T; $n]> for GenericArray<T, $ty> {
130 #[inline(always)]
131 fn from(arr: [T; $n]) -> Self {
132 unsafe { $crate::transmute(arr) }
133 }
134 }
135
136 #[cfg(relaxed_coherence)]
137 impl<T> From<GenericArray<T, $ty>> for [T; $n] {
138 #[inline(always)]
139 fn from(sel: GenericArray<T, $ty>) -> [T; $n] {
140 unsafe { $crate::transmute(sel) }
141 }
142 }
143
144 impl<'a, T> From<&'a [T; $n]> for &'a GenericArray<T, $ty> {
145 #[inline]
146 fn from(slice: &[T; $n]) -> &GenericArray<T, $ty> {
147 unsafe { &*(slice.as_ptr() as *const GenericArray<T, $ty>) }
148 }
149 }
150
151 impl<'a, T> From<&'a mut [T; $n]> for &'a mut GenericArray<T, $ty> {
152 #[inline]
153 fn from(slice: &mut [T; $n]) -> &mut GenericArray<T, $ty> {
154 unsafe { &mut *(slice.as_mut_ptr() as *mut GenericArray<T, $ty>) }
155 }
156 }
157
158 #[cfg(not(relaxed_coherence))]
159 impl<T> Into<[T; $n]> for GenericArray<T, $ty> {
160 #[inline(always)]
161 fn into(self) -> [T; $n] {
162 unsafe { $crate::transmute(self) }
163 }
164 }
165
166 impl<T> AsRef<[T; $n]> for GenericArray<T, $ty> {
167 #[inline]
168 fn as_ref(&self) -> &[T; $n] {
169 unsafe { $crate::transmute(self) }
170 }
171 }
172
173 impl<T> AsMut<[T; $n]> for GenericArray<T, $ty> {
174 #[inline]
175 fn as_mut(&mut self) -> &mut [T; $n] {
176 unsafe { $crate::transmute(self) }
177 }
178 }
179 )*
180 }
181}
182
183impl_from! {
184 1 => ::typenum::U1,
185 2 => ::typenum::U2,
186 3 => ::typenum::U3,
187 4 => ::typenum::U4,
188 5 => ::typenum::U5,
189 6 => ::typenum::U6,
190 7 => ::typenum::U7,
191 8 => ::typenum::U8,
192 9 => ::typenum::U9,
193 10 => ::typenum::U10,
194 11 => ::typenum::U11,
195 12 => ::typenum::U12,
196 13 => ::typenum::U13,
197 14 => ::typenum::U14,
198 15 => ::typenum::U15,
199 16 => ::typenum::U16,
200 17 => ::typenum::U17,
201 18 => ::typenum::U18,
202 19 => ::typenum::U19,
203 20 => ::typenum::U20,
204 21 => ::typenum::U21,
205 22 => ::typenum::U22,
206 23 => ::typenum::U23,
207 24 => ::typenum::U24,
208 25 => ::typenum::U25,
209 26 => ::typenum::U26,
210 27 => ::typenum::U27,
211 28 => ::typenum::U28,
212 29 => ::typenum::U29,
213 30 => ::typenum::U30,
214 31 => ::typenum::U31,
215 32 => ::typenum::U32
216}
217
218#[cfg(feature = "more_lengths")]
219impl_from! {
220 33 => ::typenum::U33,
221 34 => ::typenum::U34,
222 35 => ::typenum::U35,
223 36 => ::typenum::U36,
224 37 => ::typenum::U37,
225 38 => ::typenum::U38,
226 39 => ::typenum::U39,
227 40 => ::typenum::U40,
228 41 => ::typenum::U41,
229 42 => ::typenum::U42,
230 43 => ::typenum::U43,
231 44 => ::typenum::U44,
232 45 => ::typenum::U45,
233 46 => ::typenum::U46,
234 47 => ::typenum::U47,
235 48 => ::typenum::U48,
236 49 => ::typenum::U49,
237 50 => ::typenum::U50,
238 51 => ::typenum::U51,
239 52 => ::typenum::U52,
240 53 => ::typenum::U53,
241 54 => ::typenum::U54,
242 55 => ::typenum::U55,
243 56 => ::typenum::U56,
244 57 => ::typenum::U57,
245 58 => ::typenum::U58,
246 59 => ::typenum::U59,
247 60 => ::typenum::U60,
248 61 => ::typenum::U61,
249 62 => ::typenum::U62,
250 63 => ::typenum::U63,
251 64 => ::typenum::U64,
252
253 70 => ::typenum::U70,
254 80 => ::typenum::U80,
255 90 => ::typenum::U90,
256
257 100 => ::typenum::U100,
258 200 => ::typenum::U200,
259 300 => ::typenum::U300,
260 400 => ::typenum::U400,
261 500 => ::typenum::U500,
262
263 128 => ::typenum::U128,
264 256 => ::typenum::U256,
265 512 => ::typenum::U512,
266
267 1000 => ::typenum::U1000,
268 1024 => ::typenum::U1024
269}