squiid/rust
1
0
Fork 0
Code Issues Pull requests Projects Activity

Add Show and Clone trait to arrays

Browse source 
Due to not being able to parametrize over array sizes, `Clone` is only
implemented for element types that are `Copy`able.
This commit is contained in:
Tobias Bucher 2014-11-14 12:37:59 +01:00
parent bb2168c525
commit eb9684ee19
1 changed files with 22 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

30
src/libcore/array.rs
View file

@ -8,22 +8,36 @@
// option. This file may not be copied, modified, or distributed
// except according to those terms.
/*!
* Implementations of things like `Eq` for fixed-length arrays
* up to a certain length. Eventually we should able to generalize
* to all lengths.
*/
//! Implementations of things like `Eq` for fixed-length arrays
//! up to a certain length. Eventually we should able to generalize
//! to all lengths.
#![stable]
#![experimental] // not yet reviewed
use cmp::*;
use option::{Option};
use clone::Clone;
use cmp::{PartialEq, Eq, PartialOrd, Ord, Ordering};
use fmt;
use kinds::Copy;
use option::Option;
// macro for implementing n-ary tuple functions and operations
macro_rules! array_impls {
($($N:expr)+) => {
$(
#[unstable = "waiting for Clone to stabilize"]
impl<T:Copy> Clone for [T, ..$N] {
fn clone(&self) -> [T, ..$N] {
*self
}
}
#[unstable = "waiting for Show to stabilize"]
impl<T:fmt::Show> fmt::Show for [T, ..$N] {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
fmt::Show::fmt(&self[], f)
}
}
#[unstable = "waiting for PartialEq to stabilize"]
impl<T:PartialEq> PartialEq for [T, ..$N] {
#[inline]