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3192a714bf
The license header presubmit check enforces the new license header format which removes the string "All Rights Reserved." Chromium was updated but not our repo, so doing this now so that unrelated changes aren't blocked on license headers. To pass cpplint, this also fixes a number of IWYU issues and also adds `noexcept` to move operators. Bug: b/288403513 Change-Id: I90b2e58dcc2bdd1762129c7b5894e3a2730da51b Reviewed-on: https://chromium-review.googlesource.com/c/openscreen/+/4638621 Commit-Queue: Mark Foltz <mfoltz@chromium.org> Reviewed-by: Muyao Xu <muyaoxu@google.com>
51 lines
1.5 KiB
C++
51 lines
1.5 KiB
C++
// Copyright 2020 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef UTIL_CHRONO_HELPERS_H_
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#define UTIL_CHRONO_HELPERS_H_
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#include <chrono>
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// This file is a collection of helpful utilities and using statement for
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// working with std::chrono. In practice we previously defined these frequently,
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// this header allows for a single set of convenience statements.
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namespace openscreen {
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using hours = std::chrono::hours;
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using microseconds = std::chrono::microseconds;
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using milliseconds = std::chrono::milliseconds;
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using nanoseconds = std::chrono::nanoseconds;
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using seconds = std::chrono::seconds;
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// Casting statements. Note that duration_cast is not a type, it's a function,
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// so its behavior is different than the using statements above.
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template <typename D>
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static constexpr hours to_hours(D d) {
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return std::chrono::duration_cast<hours>(d);
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}
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template <typename D>
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static constexpr microseconds to_microseconds(D d) {
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return std::chrono::duration_cast<microseconds>(d);
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}
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template <typename D>
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static constexpr milliseconds to_milliseconds(D d) {
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return std::chrono::duration_cast<milliseconds>(d);
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}
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template <typename D>
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static constexpr nanoseconds to_nanoseconds(D d) {
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return std::chrono::duration_cast<nanoseconds>(d);
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}
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template <typename D>
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static constexpr seconds to_seconds(D d) {
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return std::chrono::duration_cast<seconds>(d);
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}
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} // namespace openscreen
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#endif // UTIL_CHRONO_HELPERS_H_
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