feat:exercises

Author: build

exercises/tests/Cargo.lock

@@ -1,7 +1,7 @@
 [package]
-name = "tests7"
+name = "tests8"
 version = "0.0.1"
 edition = "2021"
 [[bin]]
-name = "tests7"
-path = "tests7.rs"
+name = "tests8"
+path = "tests8.rs"

exercises/tests/Cargo.toml

@@ -30,12 +30,15 @@
 // I AM NOT DONE
 
 extern "Rust" {
+    #[link_name = "Foo:my_demo_function"]
     fn my_demo_function(a: u32) -> u32;
+    #[link_name = "Foo:my_demo_function"]
     fn my_demo_function_alias(a: u32) -> u32;
 }
 
 mod Foo {
     // No `extern` equals `extern "Rust"`.
+    #[no_mangle]
     fn my_demo_function(a: u32) -> u32 {
         a
     }
@@ -54,8 +57,8 @@ mod tests {
         // SAFETY: We know those functions are aliases of a safe
         // Rust function.
         unsafe {
-            my_demo_function(123);
-            my_demo_function_alias(456);
+            assert_eq!(my_demo_function(123), 123);
+            assert_eq!(my_demo_function_alias(456), 456);
         }
     }
 }