1 // Copyright 2020 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 #include "pw_log/log.h"
16 #include "pw_preprocessor/compiler.h"
17 #include "pw_result/result.h"
18 
Divide(float a,float b)19 PW_NO_INLINE pw::Result<float> Divide(float a, float b) {
20   if (b == 0) {
21     return pw::Status::InvalidArgument();
22   }
23   return a / b;
24 }
25 
26 float volatile* unoptimizable;
27 
main()28 int main() {
29   if (pw::Result result = Divide(*unoptimizable, *unoptimizable); result.ok()) {
30     PW_LOG_INFO("result is %f", result.value());
31     return 0;
32   }
33 
34   return 1;
35 }
36