// Clone-on-write
////////////////////////////////////////////////////////////////////////////////
+#[stable(feature = "cow_from_vec", since = "1.7.0")]
+impl<'a, T: Clone> From<&'a [T]> for Cow<'a, [T]> {
+ fn from(s: &'a [T]) -> Cow<'a, [T]> {
+ Cow::Borrowed(s)
+ }
+}
+
+#[stable(feature = "cow_from_vec", since = "1.7.0")]
+impl<'a, T: Clone> From<Vec<T>> for Cow<'a, [T]> {
+ fn from(v: Vec<T>) -> Cow<'a, [T]> {
+ Cow::Owned(v)
+ }
+}
+
#[stable(feature = "rust1", since = "1.0.0")]
impl<'a, T> FromIterator<T> for Cow<'a, [T]> where T: Clone {
fn from_iter<I: IntoIterator<Item = T>>(it: I) -> Cow<'a, [T]> {