Initial commit

.gitignore

@@ -0,0 +1 @@
+/target

Cargo.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "interplut"
+version = "0.1.0"

Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "interplut"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

src/lib.rs

@@ -0,0 +1,54 @@
+use std::fmt::Display;
+
+#[derive(Debug, Clone, Default)]
+pub struct InterpLUT<T> {
+    inner: Vec<(T, T)>,
+}
+
+impl InterpLUT<f64> {
+    /// Creates a new, empty table.
+    pub fn new() -> InterpLUT<f64> {
+        Self::default()
+    }
+
+    fn sort(&mut self) {
+        for i in 0..self.inner.len() {
+            for j in 0..i {
+                if self.inner[j].0 > self.inner[i].0 {
+                    self.inner.swap(i, j);
+                }
+            }
+        }
+    }
+
+    /// Inserts a new point into the table. Worst case is O(n^2) due to needing to sort the table
+    /// after inserting.
+    pub fn insert(&mut self, m: f64, n: f64) {
+        self.inner.push((m, n));
+        self.sort();
+    }
+}
+
+impl Display for InterpLUT<f64> {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        let num_digits_largest = self
+            .inner
+            .last()
+            .copied()
+            .unwrap_or_default()
+            .0
+            .log10()
+            .ceil() as usize;
+
+        for &(m, n) in &self.inner {
+            writeln!(
+                f,
+                "|{: ^width$}|{: ^width$}|",
+                m,
+                n,
+                width = num_digits_largest + 2
+            )?;
+        }
+        Ok(())
+    }
+}

src/main.rs

@@ -0,0 +1,16 @@
+use interplut::InterpLUT;
+
+fn main() {
+    let mut lut: InterpLUT<f64> = InterpLUT::new();
+
+    lut.insert(31.0, 5.0);
+    lut.insert(5.0, 31.0);
+    lut.insert(5.0, 31.0);
+    lut.insert(5.0, 31.0);
+    lut.insert(4.0, 31.0);
+    lut.insert(3.0, 31.0);
+    lut.insert(2.0, 31.0);
+    lut.insert(1.0, 31.0);
+    lut.insert(18.0, 31.0);
+    println!("{}", lut);
+}