Initial commit

bmi-calc/Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "bmi-calc"
+version = "0.1.0"

bmi-calc/Cargo.toml

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

bmi-calc/src/main.rs

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+use std::io::{self, Write};
+
+fn read_float(prompt: &str) -> f32 {
+    print!("{}", prompt);
+    let _ = io::stdout().flush();
+    let mut line = String::new();
+    let _ = io::stdin().read_line(&mut line);
+    let flt = line[..line.len() - 1].parse::<f32>();
+    if flt.is_err() {
+        println!("Invalid number: '{}'", line);
+        return read_float(prompt);
+    }
+    return flt.unwrap();
+}
+
+fn calculate_bmi(kg_weight: f32, cm_height: f32) -> f32 {
+    let m_height = cm_height / 100.0;
+    return kg_weight / (m_height * m_height);
+}
+
+fn main() {
+    let in_height = read_float("Enter height (inches): "); 
+    let lb_weight = read_float("Enter weight (pounds): ");
+    let cm_height = in_height * 2.54;
+    let kg_weight = lb_weight / 2.20462;
+    println!("Your metric height: {}cm", cm_height);
+    println!("Your metric weight: {}kg", kg_weight);
+    println!("Your BMI: {}", calculate_bmi(kg_weight, cm_height));
+}