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iter_fixed
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Iterator of const known length
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iter_fixed
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 [](https://crates.io/crates/iter_fixed) [](https://docs.rs/iter_fixed/) [](https://deps.rs/crate/iter_fixed/0.4.0)    # iter_fixed Provides a type and traits for turning collections of fixed size, like arrays, into [`IteratorFixed`] which can be used a bit like an ordinary [`Iterator`] but with a compile time guaranteed length. This enables us to turn them back into collections of fixed size without having to perform unnecessary checks during run time. [`IteratorFixed`] provides on stable methods like `map`, `inspect`, `enumerate`, `zip`, `rev`, `copied`, `cloned`, with nightly `skip`, `step_by`, `chain`, `take`, `flatten`. However it does not and will never be able to support methods like `filter` or `take_while` which will affect the length during runtime. ## ⚠️ Experimental *This code is currently very experimental, type names, function names, trait bounds etc. are all very much subject to change.* ## Origin *This project is inspired by @leonardo-m 's idea <https://github.com/rust-lang/rust/issues/80094#issuecomment-749260428>* ## Examples: ```rust // simply reverse an Array let rev_array: [_; 4] = [1, 3, 2, 7] .into_iter_fixed() .rev() .collect(); assert_eq!(rev_array, [7, 2, 3, 1]); // .. and compute sum with values of a second array multiplied by 10 let sum_array: [_; 4] = rev_array .into_iter_fixed() .zip([4,1,3,7]) .map(|(a, b)| a + (b * 10)) .collect(); assert_eq!(sum_array, [47, 12, 33, 71]); ``` You can also take a look at examples : [`matrix.rs`] and [`vector.rs`] [`matrix.rs`]: source/examples/matrix.rs [`vector.rs`]: source/examples/vector.rs Current version: 0.4.0 ## no_std This crate should work without the full standard library Some additional info here # License : MIT OR Apache-2.0 `iter_fixed` is distributed under the terms of both the MIT license and the Apache License (Version 2.0). See LICENSE-APACHE, and LICENSE-MIT for details. ## Contribution Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in `iter_fixed` by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.
