Type Alias FnvIndexMap

pub type FnvIndexMap<K, V, const N: usize> = IndexMap<K, V, BuildHasherDefault<FnvHasher>, N>;

A IndexMap using the default FNV hasher

A list of all Methods and Traits available for FnvIndexMap can be found in the IndexMap documentation.

Examples

use heapless::FnvIndexMap;

// A hash map with a capacity of 16 key-value pairs allocated on the stack
let mut book_reviews = FnvIndexMap::<_, _, 16>::new();

// review some books.
book_reviews.insert("Adventures of Huckleberry Finn",    "My favorite book.").unwrap();
book_reviews.insert("Grimms' Fairy Tales",               "Masterpiece.").unwrap();
book_reviews.insert("Pride and Prejudice",               "Very enjoyable.").unwrap();
book_reviews.insert("The Adventures of Sherlock Holmes", "Eye lyked it alot.").unwrap();

// check for a specific one.
if !book_reviews.contains_key("Les Misérables") {
    println!("We've got {} reviews, but Les Misérables ain't one.",
             book_reviews.len());
}

// oops, this review has a lot of spelling mistakes, let's delete it.
book_reviews.remove("The Adventures of Sherlock Holmes");

// look up the values associated with some keys.
let to_find = ["Pride and Prejudice", "Alice's Adventure in Wonderland"];
for book in &to_find {
    match book_reviews.get(book) {
        Some(review) => println!("{}: {}", book, review),
        None => println!("{} is unreviewed.", book)
    }
}

// iterate over everything.
for (book, review) in &book_reviews {
    println!("{}: \"{}\"", book, review);
}

Aliased Type

struct FnvIndexMap<K, V, const N: usize> { /* private fields */ }

Layout

Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.