mikros/rust
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

std: Deprecate all permutation-related slice methods

Browse Source 
These methods have been unstable for quite some time, and it's not clear that
these should remain in the standard library.
This commit is contained in:
Alex Crichton 2015-06-10 18:33:55 -07:00
parent cdb69e2747
commit f85c4f62d8
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/libcollections/slice.rs
View File

@ -872,6 +872,7 @@ impl<T> [T] {
/// assert_eq!(Some(vec![3, 1, 2]), perms.next());
/// ```
#[unstable(feature = "permutations")]
#[deprecated(since = "1.2.0", reason = "not clear this should be in the stdlib")]
#[inline]
pub fn permutations(&self) -> Permutations<T> where T: Clone {
// NB see hack module in this file
@ -897,6 +898,7 @@ impl<T> [T] {
/// ```
#[unstable(feature = "permutations",
reason = "uncertain if this merits inclusion in std")]
#[deprecated(since = "1.2.0", reason = "not clear this should be in the stdlib")]
pub fn next_permutation(&mut self) -> bool where T: Ord {
core_slice::SliceExt::next_permutation(self)
}
@ -920,6 +922,7 @@ impl<T> [T] {
/// ```
#[unstable(feature = "permutations",
reason = "uncertain if this merits inclusion in std")]
#[deprecated(since = "1.2.0", reason = "not clear this should be in the stdlib")]
pub fn prev_permutation(&mut self) -> bool where T: Ord {
core_slice::SliceExt::prev_permutation(self)
}
@ -1066,6 +1069,7 @@ impl<T: Clone, V: Borrow<[T]>> SliceConcatExt<T> for [V] {
/// sequence to its initial order.
#[unstable(feature = "permutations")]
#[derive(Clone)]
#[deprecated(since = "1.2.0", reason = "not clear this should be in the stdlib")]
pub struct ElementSwaps {
sdir: Vec<SizeDirection>,
/// If `true`, emit the last swap that returns the sequence to initial
@ -1077,6 +1081,7 @@ pub struct ElementSwaps {
impl ElementSwaps {
/// Creates an `ElementSwaps` iterator for a sequence of `length` elements.
#[unstable(feature = "permutations")]
#[deprecated(since = "1.2.0", reason = "not clear this should be in the stdlib")]
pub fn new(length: usize) -> ElementSwaps {
// Initialize `sdir` with a direction that position should move in
// (all negative at the beginning) and the `size` of the
@ -1199,6 +1204,7 @@ impl Iterator for ElementSwaps {
///
/// Generates even and odd permutations alternately.
#[unstable(feature = "permutations")]
#[deprecated(since = "1.2.0", reason = "not clear this should be in the stdlib")]
pub struct Permutations<T> {
swaps: ElementSwaps,
v: Vec<T>,