Rollup merge of #77017 - GuillaumeGomez:vec-missing-examples-iter, r=Dylan-DPC
Add missing examples on Vec iter types r? @Dylan-DPC
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@ -2849,6 +2849,13 @@ where
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///
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/// This `struct` is created by the `into_iter` method on [`Vec`] (provided
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/// by the [`IntoIterator`] trait).
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///
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/// # Example
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///
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/// ```
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/// let v = vec![0, 1, 2];
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/// let iter: std::vec::IntoIter<_> = v.into_iter();
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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pub struct IntoIter<T> {
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buf: NonNull<T>,
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@ -3092,6 +3099,13 @@ impl<T> AsIntoIter for IntoIter<T> {
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///
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/// This `struct` is created by [`Vec::drain`].
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/// See its documentation for more.
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///
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/// # Example
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///
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/// ```
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/// let mut v = vec![0, 1, 2];
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/// let iter: std::vec::Drain<_> = v.drain(..);
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/// ```
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#[stable(feature = "drain", since = "1.6.0")]
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pub struct Drain<'a, T: 'a> {
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/// Index of tail to preserve
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@ -3221,6 +3235,14 @@ impl<T> FusedIterator for Drain<'_, T> {}
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///
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/// This struct is created by [`Vec::splice()`].
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/// See its documentation for more.
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///
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/// # Example
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///
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/// ```
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/// let mut v = vec![0, 1, 2];
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/// let new = [7, 8];
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/// let iter: std::vec::Splice<_> = v.splice(1.., new.iter().cloned());
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/// ```
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#[derive(Debug)]
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#[stable(feature = "vec_splice", since = "1.21.0")]
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pub struct Splice<'a, I: Iterator + 'a> {
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@ -3337,6 +3359,15 @@ impl<T> Drain<'_, T> {
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///
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/// This struct is created by [`Vec::drain_filter`].
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/// See its documentation for more.
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///
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/// # Example
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///
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/// ```
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/// #![feature(drain_filter)]
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///
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/// let mut v = vec![0, 1, 2];
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/// let iter: std::vec::DrainFilter<_, _> = v.drain_filter(|x| *x % 2 == 0);
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/// ```
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#[unstable(feature = "drain_filter", reason = "recently added", issue = "43244")]
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#[derive(Debug)]
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pub struct DrainFilter<'a, T, F>
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