From 4ceba40899d39cdca5452fc4a6a96c9e24bf268c Mon Sep 17 00:00:00 2001
From: "Wyatt J. Miller" <wyatt@wyattjmiller.com>
Date: Sat, 1 Oct 2022 16:14:00 -0400
Subject: [PATCH] add_one fn

---
 src/lib.rs | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 src/lib.rs

diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..d751034
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,19 @@
+#[no_mangle]
+pub extern "C" fn add_one(x: u32) -> u32 {
+    x + 1
+}
+
+pub fn add(left: usize, right: usize) -> usize {
+    left + right
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn it_works() {
+        let result = add(2, 2);
+        assert_eq!(result, 4);
+    }
+}