Initial commit

.gitignore

+/target

Cargo.lock

+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "byteorder"
+version = "1.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
+
+[[package]]
+name = "fixed-hash-sample"
+version = "0.1.0"
+dependencies = [
+ "hashers",
+]
+
+[[package]]
+name = "fxhash"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c31b6d751ae2c7f11320402d34e41349dd1016f8d5d45e48c4312bc8625af50c"
+dependencies = [
+ "byteorder",
+]
+
+[[package]]
+name = "hashers"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b2bca93b15ea5a746f220e56587f71e73c6165eab783df9e26590069953e3c30"
+dependencies = [
+ "fxhash",
+]

Cargo.toml

+[package]
+name = "fixed-hash-sample"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+hashers = "1.0.1"

src/main.rs

+
+use hashers::fx_hash::FxHasher64;
+use std::hash::BuildHasherDefault;
+use std::collections::HashMap;
+
+
+fn main() {
+    let mut data: HashMap<String, u32, BuildHasherDefault<FxHasher64>> = HashMap::default();
+
+    data.insert("un".into(), 1);
+    data.insert("deux".into(), 2);
+    data.insert("trois".into(), 3);
+    data.insert("quatre".into(), 4);
+    data.insert("cinq".into(), 5);
+    data.insert("six".into(), 6);
+
+    println!("Always same hash function");
+    for (k, v) in data.iter() {
+        println!("{} -> {}", k, v);
+    }
+
+    let mut data: HashMap<String, u32> = HashMap::default();
+
+
+    println!("Random state hash function");
+    data.insert("un".into(), 1);
+    data.insert("deux".into(), 2);
+    data.insert("trois".into(), 3);
+    data.insert("quatre".into(), 4);
+    data.insert("cinq".into(), 5);
+    data.insert("six".into(), 6);
+
+    for (k, v) in data.iter() {
+        println!("{} -> {}", k, v);
+    }
+    
+}