1/*
2 * Copyright (C) 2022 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#ifndef INCLUDE_PERFETTO_PUBLIC_COMPILER_H_
18#define INCLUDE_PERFETTO_PUBLIC_COMPILER_H_
19
20#if defined(__GNUC__) || defined(__clang__)
21#define PERFETTO_LIKELY(_x) __builtin_expect(!!(_x), 1)
22#define PERFETTO_UNLIKELY(_x) __builtin_expect(!!(_x), 0)
23#else
24#define PERFETTO_LIKELY(_x) (_x)
25#define PERFETTO_UNLIKELY(_x) (_x)
26#endif
27
28// PERFETTO_STATIC_CAST(TYPE, VAL): avoids the -Wold-style-cast warning when
29// writing code that needs to be compiled as C and C++.
30#ifdef __cplusplus
31#define PERFETTO_STATIC_CAST(TYPE, VAL) static_cast<TYPE>(VAL)
32#else
33#define PERFETTO_STATIC_CAST(TYPE, VAL) ((TYPE)(VAL))
34#endif
35
36#endif // INCLUDE_PERFETTO_PUBLIC_COMPILER_H_
37

source code of dart_sdk/third_party/perfetto/include/perfetto/public/compiler.h