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Remove each_permutation_ref

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Corey Richardson 2013-05-16 22:03:58 -04:00
parent c99d1de85b
commit c67a85ada1
1 changed files with 0 additions and 60 deletions
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60
src/libcore/vec.rs
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@ -1824,26 +1824,6 @@ pub fn each_permutation<T:Copy>(values: &[T], fun: &fn(perm : &[T]) -> bool) {
}
}
/**
* Iterate over all permutations of vector `values`.
*
* This is an alternative to each_permutation that uses references to
* avoid copying the elements of the values vector.
*
* To avoid copying, the iterator will be passed a reference to a vector
* containing references to the elements in the original `values` vector.
*
* # Arguments
*
* * `values` - A vector of values from which the permutations are chosen
*
* * `fun` - The function to iterate over the permutations
*/
#[cfg(not(stage0))]
pub fn each_permutation_ref<T>(values : &[T], fun : &fn(perm : &[&T]) -> bool) {
each_permutation(vec::from_fn(values.len(), |i| &values[i]), fun);
}
/**
* Iterate over all contiguous windows of length `n` of the vector `v`.
*
@ -4827,16 +4807,6 @@ mod tests {
assert_eq!(v, ~[~[]]);
}
#[test]
fn test_permutations0_ref() {
let values = [];
let mut v : ~[~[int]] = ~[];
for each_permutation_ref(values) |p| {
v.push(p.to_owned());
}
assert_eq!(v, ~[~[]]);
}
#[test]
fn test_permutations1() {
let values = [1];
@ -4847,16 +4817,6 @@ mod tests {
assert_eq!(v, ~[~[1]]);
}
#[test]
fn test_permutations1_ref() {
let values = [1];
let mut v : ~[~[int]] = ~[];
for each_permutation_ref(values) |p| {
v.push(p.to_owned());
}
assert_eq!(v, ~[~[1]]);
}
#[test]
fn test_permutations2() {
let values = [1,2];
@ -4867,16 +4827,6 @@ mod tests {
assert_eq!(v, ~[~[1,2],~[2,1]]);
}
#[test]
fn test_permutations2_ref() {
let values = [1,2];
let mut v : ~[~[int]] = ~[];
for each_permutation_ref(values) |p| {
v.push(p.to_owned());
}
assert_eq!(v, ~[~[1,2],~[2,1]]);
}
#[test]
fn test_permutations3() {
let values = [1,2,3];
@ -4887,16 +4837,6 @@ mod tests {
assert_eq!(v, ~[~[1,2,3],~[1,3,2],~[2,1,3],~[2,3,1],~[3,1,2],~[3,2,1]]);
}
#[test]
fn test_permutations3_ref() {
let values = [1,2,3];
let mut v : ~[~[int]] = ~[];
for each_permutation_ref(values) |p| {
v.push(p.to_owned());
}
assert_eq!(v, ~[~[1,2,3],~[1,3,2],~[2,1,3],~[2,3,1],~[3,1,2],~[3,2,1]]);
}
#[test]
fn test_each_val() {
use old_iter::CopyableNonstrictIter;