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_preprocessor/compiler.h" 16 17 #include <cstdint> 18 19 #include "gtest/gtest.h" 20 21 namespace pw::preprocessor { 22 namespace { 23 24 PW_MODIFY_DIAGNOSTICS_PUSH(); 25 PW_MODIFY_DIAGNOSTIC(ignored, "-Wunused-variable"); 26 27 int this_variable_is_unused; 28 29 PW_MODIFY_DIAGNOSTICS_POP(); 30 31 class Foo { 32 PW_MODIFY_DIAGNOSTICS_PUSH(); 33 PW_MODIFY_DIAGNOSTIC(ignored, "-Wunused"); 34 35 int this_field_is_unused; 36 37 PW_MODIFY_DIAGNOSTICS_POP(); 38 }; 39 TEST(CompilerMacros,ModifyDiagnostics)40TEST(CompilerMacros, ModifyDiagnostics) { 41 PW_MODIFY_DIAGNOSTICS_PUSH(); 42 PW_MODIFY_DIAGNOSTIC(ignored, "-Wunused-variable"); 43 44 int this_variable_also_is_unused; 45 46 PW_MODIFY_DIAGNOSTICS_POP(); 47 } 48 49 } // namespace 50 } // namespace pw::preprocessor 51