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vec: add mut_slice_{to,from}

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Closes #8066
This commit is contained in:
Daniel Micay 2013-07-26 20:48:56 -04:00
parent d6bc438bbc
commit d7c9bb4b68
1 changed files with 23 additions and 0 deletions
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23
src/libstd/vec.rs
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@ -1656,6 +1656,8 @@ impl<T:Eq> OwnedEqVector<T> for ~[T] {
#[allow(missing_doc)]
pub trait MutableVector<'self, T> {
fn mut_slice(self, start: uint, end: uint) -> &'self mut [T];
fn mut_slice_from(self, start: uint) -> &'self mut [T];
fn mut_slice_to(self, end: uint) -> &'self mut [T];
fn mut_iter(self) -> VecMutIterator<'self, T>;
fn mut_rev_iter(self) -> VecMutRevIterator<'self, T>;
@ -1709,6 +1711,27 @@ impl<'self,T> MutableVector<'self, T> for &'self mut [T] {
}
}
/**
* Returns a slice of self from `start` to the end of the vec.
*
* Fails when `start` points outside the bounds of self.
*/
#[inline]
fn mut_slice_from(self, start: uint) -> &'self mut [T] {
let len = self.len();
self.mut_slice(start, len)
}
/**
* Returns a slice of self from the start of the vec to `end`.
*
* Fails when `end` points outside the bounds of self.
*/
#[inline]
fn mut_slice_to(self, end: uint) -> &'self mut [T] {
self.mut_slice(0, end)
}
#[inline]
fn mut_split(self, mid: uint) -> (&'self mut [T], &'self mut [T]) {
unsafe {