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[](https://crates.io/crates/multimap)
[](https://docs.rs/multimap)
# Multimap implementation for Rust
This is a multimap implementation for Rust. Implemented as a thin wrapper around
`std::collections::HashMap`.
## Example
````rust
extern crate multimap;
use multimap::MultiMap;
fn main () {
let mut map = MultiMap::new();
map.insert("key1", 42);
map.insert("key1", 1337);
map.insert("key2", 2332);
assert_eq!(map["key1"], 42);
assert_eq!(map.get("key1"), Some(&42));
assert_eq!(map.get_vec("key1"), Some(&vec![42, 1337]));
}
````
## Changelog
### 0.10.1
* Fix docs for flat_iter #45
* Clippy warnings
### 0.10.0
* Added `FromIterator<(K, Vec<V>)>` [#48](https://github.com/havarnov/multimap/pull/48).
### 0.9.1
* Fixes a bug where iteration would panic on empty (inner) vectors [#46](https://github.com/havarnov/multimap/issues/46).
### 0.9.0
* Added ```flat_iter``` and ```flat_iter_mut```
* Fixed bug where ```get``` and ```get_mut``` could panic.
### 0.8.3
* `multimap!` macro fixes; allow trailing comma, naming hygiene and create with
enough capacity for all elements.
### 0.8.2
* Added ```#![forbid(unsafe_code)]```.
### 0.8.1
* Fixed wrong link to documentation in `Cargo.toml`.
### 0.8.0
* Added ```MultiMap::insert_many```.
* Added ```MultiMap::insert_many_from_slice```.
### 0.7.0
* Added possibility to replace the default hasher for the underlying
```HashMap```.
* Fix build warning by removing an unnecessary ```mut```.
## License
Licensed under either of
* Apache License, Version 2.0 ([LICENSE-APACHE](LICENSE-APACHE) or
https://www.apache.org/licenses/LICENSE-2.0)
* MIT license ([LICENSE-MIT](LICENSE-MIT) or
https://opensource.org/licenses/MIT)
at your option.
### Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in the work by you, as defined in the Apache-2.0 license, shall be
dual licensed as above, without any additional terms or conditions.
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