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Add doctests for HashMap's into_values and into_keys methods #87598

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Aug 23, 2021
Merged

Add doctests for HashMap's into_values and into_keys methods #87598

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12 changes: 10 additions & 2 deletions library/std/src/collections/hash/map.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -971,7 +971,11 @@ where
/// map.insert("b", 2);
/// map.insert("c", 3);
///
/// let vec: Vec<&str> = map.into_keys().collect();
/// let mut vec: Vec<&str> = map.into_keys().collect();
/// // The `IntoKeys` iterator produces keys in arbitrary order, so the
/// // keys must be sorted to test them against a sorted array.
/// vec.sort_unstable();
/// assert_eq!(vec, ["a", "b", "c"]);
/// ```
#[inline]
#[stable(feature = "map_into_keys_values", since = "1.54.0")]
Expand All @@ -993,7 +997,11 @@ where
/// map.insert("b", 2);
/// map.insert("c", 3);
///
/// let vec: Vec<i32> = map.into_values().collect();
/// let mut vec: Vec<i32> = map.into_values().collect();
/// // The `IntoValues` iterator produces values in arbitrary order, so
/// // the values must be sorted to test them against a sorted array.
/// vec.sort_unstable();
/// assert_eq!(vec, [1, 2, 3]);
/// ```
#[inline]
#[stable(feature = "map_into_keys_values", since = "1.54.0")]
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