1 // Copyright 2021 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_function/function.h" 16 17 namespace { 18 19 int volatile* unoptimizable; 20 DoTheThing(int value,const pw::Function<void (int)> & callback)21void DoTheThing(int value, const pw::Function<void(int)>& callback) { 22 callback(value ^ *unoptimizable); 23 } 24 25 } // namespace 26 main()27int main() { 28 int result; 29 DoTheThing(3, [&](int r) { result = r; }); 30 return result; 31 } 32