Jason Staten
6 years ago
parent
9a3f621f4a
commit
a4642a2218
@ -1,4 +1,86 @@
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[[package]]
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name = "bitflags"
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version = "1.0.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "cloudabi"
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version = "0.0.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"bitflags 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "fuchsia-zircon"
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version = "0.3.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"bitflags 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
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"fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "fuchsia-zircon-sys"
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version = "0.3.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "imposters"
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version = "0.1.0"
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dependencies = [
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"rand 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "libc"
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version = "0.2.42"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "rand"
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version = "0.5.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
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"fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
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"rand_core 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
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"winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "rand_core"
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version = "0.2.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "winapi"
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version = "0.3.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "winapi-i686-pc-windows-gnu"
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version = "0.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "winapi-x86_64-pc-windows-gnu"
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version = "0.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[metadata]
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"checksum bitflags 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "d0c54bb8f454c567f21197eefcdbf5679d0bd99f2ddbe52e84c77061952e6789"
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"checksum cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ddfc5b9aa5d4507acaf872de71051dfd0e309860e88966e1051e462a077aac4f"
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"checksum fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "2e9763c69ebaae630ba35f74888db465e49e259ba1bc0eda7d06f4a067615d82"
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"checksum fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "3dcaa9ae7725d12cdb85b3ad99a434db70b468c09ded17e012d86b5c1010f7a7"
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"checksum libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)" = "b685088df2b950fccadf07a7187c8ef846a959c142338a48f9dc0b94517eb5f1"
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"checksum rand 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)" = "6802c0e883716383777e147b7c21323d5de7527257c8b6dc1365a7f2983e90f6"
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"checksum rand_core 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "edecf0f94da5551fc9b492093e30b041a891657db7940ee221f9d2f66e82eef2"
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"checksum winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "773ef9dcc5f24b7d850d0ff101e542ff24c3b090a9768e03ff889fdef41f00fd"
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"checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
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"checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
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@ -1,6 +1,6 @@
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[package]
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authors = ["Jason Staten <jstaten07@gmail.com>"]
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name = "imposters"
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version = "0.1.0"
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authors = ["Jason Staten <jstaten07@gmail.com>"]
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[dependencies]
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rand = "0.5.3"
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@ -0,0 +1,47 @@
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#![allow(unused)]
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#![allow(dead_code)]
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extern crate rand;
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use super::bubble;
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use super::insertion;
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use super::selection;
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use ch07_algorithms::bench::rand::Rng;
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extern crate test;
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use test::{black_box, Bencher};
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fn generate_data() -> Vec<u32> {
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let mut rng = rand::thread_rng();
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let mut v = vec![0u32; 1000];
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for x in v.iter_mut() {
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*x = rng.gen();
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}
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v
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}
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#[bench]
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fn bench_selection_sort(b: &mut Bencher) {
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let data = generate_data();
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b.iter(|| {
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let mut data_clone = data.clone();
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black_box(selection::selection_sort(&mut data_clone))
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});
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}
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#[bench]
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fn bench_bubble_sort(b: &mut Bencher) {
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let data = generate_data();
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b.iter(|| {
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let mut data_clone = data.clone();
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black_box(bubble::bubble_sort(&mut data_clone))
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});
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}
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#[bench]
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fn bench_insertion_sort(b: &mut Bencher) {
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let data = generate_data();
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b.iter(|| {
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let mut data_clone = data.clone();
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black_box(insertion::insertion_sort(&mut data_clone))
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});
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}
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@ -0,0 +1,27 @@
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pub fn bubble_sort<T>(source: &mut [T])
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where
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T: Ord,
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{
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let mut keep_going = true;
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while keep_going {
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keep_going = false;
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for i in 0..source.len() - 1 {
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if source[i] > source[i + 1] {
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source.swap(i, i + 1);
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keep_going = true;
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}
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}
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}
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}
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#[cfg(test)]
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mod test {
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use super::*;
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#[test]
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fn test_small_sort() {
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let mut my_vec = vec![100, 42, 73, 24];
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bubble_sort(&mut my_vec);
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assert_eq!(my_vec, vec![24, 42, 73, 100])
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}
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}
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@ -0,0 +1,26 @@
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pub fn insertion_sort<T>(source: &mut [T])
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where
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T: Ord,
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{
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for i in 0..source.len() {
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for j in (0..i).rev() {
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if source[j] > source[j + 1] {
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source.swap(j, j + 1);
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} else {
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break;
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}
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}
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}
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}
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#[cfg(test)]
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mod test {
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use super::*;
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#[test]
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fn test_small_sort() {
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let mut my_vec = vec![100, 42, 73, 24];
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insertion_sort(&mut my_vec);
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assert_eq!(my_vec, vec![24, 42, 73, 100])
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}
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}
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@ -0,0 +1,4 @@
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pub mod bench;
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pub mod bubble;
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pub mod insertion;
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pub mod selection;
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@ -0,0 +1,26 @@
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pub fn selection_sort<T>(source: &mut [T])
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where
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T: Ord,
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{
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for cur_index in 0..source.len() {
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let (min_index, _) = source
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.iter()
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.enumerate()
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.skip(cur_index)
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.min_by_key(|&(_, item)| item)
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.unwrap();
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source.swap(cur_index, min_index);
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}
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}
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#[cfg(test)]
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mod test {
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use super::*;
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#[test]
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fn test_small_sort() {
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let mut my_vec = vec![100, 42, 73, 24];
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selection_sort(&mut my_vec);
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assert_eq!(my_vec, vec![24, 42, 73, 100])
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}
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}
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