impl Default for collection iterators that don't already have it · patricklam/verify-rust-std@bdc18e2 (original) (raw)
`@@ -2016,6 +2016,20 @@ impl<K, V> Default for Range<'_, K, V> {
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`}
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`}
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#[stable(feature = "default_iters", since = "CURRENT_RUSTC_VERSION")]
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impl<K, V> Default for RangeMut<'_, K, V> {
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/// Creates an empty btree_map::RangeMut.
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///
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/// ```
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/// # use std::collections::btree_map;
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/// let iter: btree_map::RangeMut<'_, u8, u8> = Default::default();
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/// assert_eq!(iter.count(), 0);
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/// ```
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fn default() -> Self {
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RangeMut { inner: Default::default(), _marker: PhantomData }
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}
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}
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`#[stable(feature = "map_values_mut", since = "1.10.0")]
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`impl<'a, K, V> Iterator for ValuesMut<'a, K, V> {
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`type Item = &'a mut V;
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`@@ -2050,6 +2064,20 @@ impl<K, V> ExactSizeIterator for ValuesMut<'_, K, V> {
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`#[stable(feature = "fused", since = "1.26.0")]
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`impl<K, V> FusedIterator for ValuesMut<'_, K, V> {}
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``
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#[stable(feature = "default_iters", since = "CURRENT_RUSTC_VERSION")]
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impl<K, V> Default for ValuesMut<'_, K, V> {
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/// Creates an empty btree_map::ValuesMut.
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///
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/// ```
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/// # use std::collections::btree_map;
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/// let iter: btree_map::ValuesMut<'_, u8, u8> = Default::default();
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/// assert_eq!(iter.count(), 0);
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/// ```
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fn default() -> Self {
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ValuesMut { inner: Default::default() }
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}
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}
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`#[stable(feature = "map_into_keys_values", since = "1.54.0")]
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`impl<K, V, A: Allocator + Clone> Iterator for IntoKeys<K, V, A> {
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`type Item = K;
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