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 "pw_unit_test/framework.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)40 TEST(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
TEST(CompilerMacros,ModifyDiagnosticsClangGcc)49 TEST(CompilerMacros, ModifyDiagnosticsClangGcc) {
50 PW_MODIFY_DIAGNOSTICS_PUSH();
51 PW_MODIFY_DIAGNOSTIC_GCC(ignored, "-Wunused-variable");
52 PW_MODIFY_DIAGNOSTIC_CLANG(ignored, "-Wunused-variable");
53
54 int this_variable_also_is_unused;
55
56 PW_MODIFY_DIAGNOSTICS_POP();
57 }
58
59 } // namespace
60 } // namespace pw::preprocessor
61