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Removed list::any() in favor of iter().any()

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This commit is contained in:
Bruno de Oliveira Abinader 2014-02-24 22:45:27 -04:00
parent d681907064
commit 197116d7ce
1 changed files with 7 additions and 25 deletions
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32
src/libcollections/list.rs
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@ -53,26 +53,6 @@ impl<T> List<T> {
}
}
/**
* Returns true if a list contains an element that matches a given predicate
*
* Apply function `f` to each element of `list`, starting from the first.
* When function `f` returns true then it also returns true. If `f` matches no
* elements then false is returned.
*/
pub fn any<T>(list: @List<T>, f: |&T| -> bool) -> bool {
let mut list = list;
loop {
list = match *list {
Cons(ref head, tail) => {
if f(head) { return true; }
tail
}
Nil => return false
}
};
}
/// Returns true if a list contains an element with the given value
pub fn has<T:Eq>(list: @List<T>, element: T) -> bool {
let mut found = false;
@ -251,11 +231,13 @@ mod tests {
#[test]
fn test_any() {
fn match_(i: &int) -> bool { return *i == 2; }
let list = @List::from_vec([0, 1, 2]);
let empty = @list::Nil::<int>;
assert_eq!(list::any(list, match_), true);
assert_eq!(list::any(empty, match_), false);
fn match_(i: &int) -> bool { *i == 2 }
let empty = Nil::<int>;
assert_eq!(empty.iter().any(match_), false);
let list = List::from_vec([0, 1, 2]);
assert_eq!(list.iter().any(match_), true);
}
#[test]