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| author | Martin Habovštiak <martin.habovstiak@gmail.com> | 2019-10-03 10:09:04 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-10-03 10:09:04 +0200 |
| commit | 00d9db14f74c6b4d532547f7acf38b3538574958 (patch) | |
| tree | c4e7dc94909c16887751b1c1bd1233eef8c46ebf /src/libstd/collections | |
| parent | c6293e359848c8c7275330719b33ccd168df04c3 (diff) | |
| download | rust-00d9db14f74c6b4d532547f7acf38b3538574958.tar.gz rust-00d9db14f74c6b4d532547f7acf38b3538574958.zip | |
Added doc about behavior of extend on HashMap
It was unclear what the implementation does when it encounters existing keys. This change makes it clear by documenting the trait impl.
Diffstat (limited to 'src/libstd/collections')
| -rw-r--r-- | src/libstd/collections/hash/map.rs | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/libstd/collections/hash/map.rs b/src/libstd/collections/hash/map.rs index ff50051ef50..c9596dc05bb 100644 --- a/src/libstd/collections/hash/map.rs +++ b/src/libstd/collections/hash/map.rs @@ -2362,6 +2362,8 @@ where } } +/// Inserts all new key-values from the iterator and replaces values with existing +/// keys with new values returned from the iterator. #[stable(feature = "rust1", since = "1.0.0")] impl<K, V, S> Extend<(K, V)> for HashMap<K, V, S> where |