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Fix documentation for Iterator::count(). #66094

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Merged
merged 3 commits into from
Nov 13, 2019
Merged

Fix documentation for Iterator::count(). #66094

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7550b61
Fix documentation for `Iterator::count()`.
ArturKovacs Nov 4, 2019
6ce3e1d
Fixed trailing whitespace.
ArturKovacs Nov 4, 2019
23be25c
Improve wording in the documentation of `Iterator::count()`.
ArturKovacs Nov 4, 2019
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7 changes: 4 additions & 3 deletions src/libcore/iter/traits/iterator.rs
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Expand Up @@ -201,12 +201,13 @@ pub trait Iterator {

/// Consumes the iterator, counting the number of iterations and returning it.
///
/// This method will evaluate the iterator until its [`next`] returns
/// [`None`]. Once [`None`] is encountered, `count()` returns the number of
/// times it called [`next`].
/// This method will call [`next`] repeatedly until [`None`] is encountered,
/// returning the number of times it saw [`Some`]. Note that [`next`] has to be
/// called at least once even if the iterator does not have any elements.
///
/// [`next`]: #tymethod.next
/// [`None`]: ../../std/option/enum.Option.html#variant.None
/// [`Some`]: ../../std/option/enum.Option.html#variant.Some
///
/// # Overflow Behavior
///
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