test

hello-rust/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "hello-rust"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]

hello-rust/src/main.rs

@@ -0,0 +1,12 @@
+extern crate core;
+use core::ffi::c_int; 
+
+extern "C" {
+    fn multiply(a: c_int, b: c_int) -> c_int;
+}
+
+fn main() {
+    unsafe {
+        println!("Result: {}", multiply(100, 5));
+    }
+}

hello-rust/src/multiply.c

@@ -0,0 +1,11 @@
+#include <stdio.h>
+#include <stdint.h>
+
+int32_t multiply(int32_t a, int32_t b) {
+    printf("[C] Hello from C!\n");
+    printf("[C] Input a is: %i \n", a);
+    printf("[C] Input b is: %i \n", b);
+    printf("[C] Multiplying and returning result to Rust..\n");
+
+    return a * b;
+}