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README.md
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README.md
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@ -6,7 +6,7 @@ A compact encoder / decoder pair that uses an binary zero-fluff encoding scheme.
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The size of the encoded object will be the same or smaller than the size that
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the object takes up in memory in a running Rust program.
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In addition to exposing two simple functions that encode to Vec<u8> and decode
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In addition to exposing two simple funcitons that encode to Vec<u8> and decode
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from Vec<u8>, binary-encode exposes a Reader/Writer API that makes it work
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perfectly with other stream-based apis such as rust files, network streams,
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and the [flate2-rs](https://github.com/alexcrichton/flate2-rs) compression
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@ -17,8 +17,6 @@ library.
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## Example
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```rust
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#![feature(old_orphan_check)]
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extern crate bincode;
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extern crate "rustc-serialize" as rustc_serialize;
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@ -41,9 +39,11 @@ fn main() {
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};
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let encoded: Vec<u8> = bincode::encode(&world, SizeLimit::Infinite).unwrap();
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// 8 bytes for the length of the vector, 4 bytes per float.
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assert_eq!(encoded.len(), 8 + 4 * 4);
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let decoded: World = bincode::decode(encoded, SizeLimit::Infinite).unwrap();
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let decoded: World = bincode::decode(&encoded[]).unwrap();
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assert!(world == decoded);
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}
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@ -61,7 +61,7 @@ then the contents.
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However, there are some implementation details to be aware of:
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* `int`/`uint` are encoded as `i64`/`u64`, for portability.
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* `isize`/`usize` are encoded as `i64`/`u64`, for portability.
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* enums variants are encoded as a `u32` instead that as a `uint`.
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`u32` is enough for all practical uses.
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* `str` is encoded as `(u64, &[u8])`, where the `u64` is the number of
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@ -17,3 +17,20 @@ library.
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## Example
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^code(./examples/basic.rs)
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## Details
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The encoding (and thus decoding) proceeds unsurprisingly -- primitive
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types are encoded according to the underlying `Writer`, tuples and
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structs are encoded by encoding their fields one-by-one, and enums are
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encoded by first writing out the tag representing the variant and
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then the contents.
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However, there are some implementation details to be aware of:
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* `isize`/`usize` are encoded as `i64`/`u64`, for portability.
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* enums variants are encoded as a `u32` instead that as a `uint`.
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`u32` is enough for all practical uses.
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* `str` is encoded as `(u64, &[u8])`, where the `u64` is the number of
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bytes contained in the encoded string.
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