1 /*
2 * Copyright (C) 2018 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 // This file makes uses of clang's built-in diagnostic checker.
18 // While not officially supported by clang, it's used by clang for all of its
19 // own diagnostic tests. Please see
20 // https://clang.llvm.org/doxygen/classclang_1_1VerifyDiagnosticConsumer.html#details
21 // for details.
22
23 // expected-no-diagnostics
24
25 #include <sys/ioctl.h>
26
27 #pragma clang diagnostic warning "-Wsign-conversion"
28
check_no_signedness_warnings(int i,unsigned x)29 void check_no_signedness_warnings(int i, unsigned x) {
30 ioctl(i, i);
31 ioctl(i, x);
32
33 ioctl(i, i, nullptr);
34 ioctl(i, x, nullptr);
35 }
36