1//===-- Timer.h -------------------------------------------------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#ifndef LLVM_LIBC_TEST_SRC_MATH_PERFORMACE_TESTING_TIMER_H
10#define LLVM_LIBC_TEST_SRC_MATH_PERFORMACE_TESTING_TIMER_H
11
12#include "src/__support/macros/config.h"
13#include <stdint.h>
14
15namespace LIBC_NAMESPACE_DECL {
16namespace testing {
17
18class Timer {
19 void *Impl;
20
21public:
22 Timer();
23 ~Timer();
24
25 void start();
26 void stop();
27
28 uint64_t nanoseconds() const;
29};
30
31} // namespace testing
32} // namespace LIBC_NAMESPACE_DECL
33
34#endif // LLVM_LIBC_TEST_SRC_MATH_PERFORMANCE_TESTING_TIMER_H
35

source code of libc/test/src/math/performance_testing/Timer.h