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_status/status.h"
17
Divide(float a,float b,float * out)18 pw::Status Divide(float a, float b, float* out) {
19 if (b == 0) {
20 return pw::Status::InvalidArgument();
21 }
22 *out = a / b;
23 return pw::OkStatus();
24 }
25
26 int volatile* unoptimizable;
27
main()28 int main() {
29 float f;
30 if (Divide(*unoptimizable, *unoptimizable, &f).ok()) {
31 PW_LOG_INFO("result is %f", f);
32 return 0;
33 }
34
35 return 1;
36 }
37