1 // Copyright 2024 The Pigweed Authors
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License"); you may not
4 // use this file except in compliance with the License. You may obtain a copy of
5 // the License at
6 //
7 // https://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
11 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
12 // License for the specific language governing permissions and limitations under
13 // the License.
14
15 #![no_std]
16
17 include!(env!("BINDGEN_RS_FILE"));
18
extern_c_add(a: i32, b: i32) -> i3219 fn extern_c_add(a: i32, b: i32) -> i32 {
20 return unsafe { add(a, b) };
21 }
22
23 #[cfg(test)]
24 mod tests {
25 use crate::extern_c_add;
26
rust_add(a: i32, b: i32) -> i3227 fn rust_add(a: i32, b: i32) -> i32 {
28 return a + b;
29 }
30
31 #[test]
test_extern_add_works()32 fn test_extern_add_works() {
33 let a = -3;
34 let b = 1;
35 assert!(extern_c_add(a, b) == rust_add(a, b));
36 }
37 }
38