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55 lines
2.1 KiB
C++
55 lines
2.1 KiB
C++
#pragma once
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/*
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* Copyright (c) 2015-2016, Roland Bock, Aaron Bishop
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice, this
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* list of conditions and the following disclaimer in the documentation and/or
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* other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <date/date.h>
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namespace sqlpp
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{
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namespace chrono
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{
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using days = std::chrono::duration<int, std::ratio<86400, 1>>;
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using day_point = std::chrono::time_point<std::chrono::system_clock, days>;
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using microsecond_point = std::chrono::time_point<std::chrono::system_clock, std::chrono::microseconds>;
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#if _MSC_FULL_VER >= 190023918
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// MSVC Update 2 provides floor, ceil, round, abs in chrono (which is C++17 only...)
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using ::std::chrono::floor;
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#else
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using ::date::floor;
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#endif
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template <typename T>
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std::chrono::microseconds time_of_day(T t)
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{
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const auto dp = floor<days>(t);
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return std::chrono::duration_cast<std::chrono::microseconds>(::date::make_time(t - dp).to_duration());
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}
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} // namespace chrono
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} // namespace sqlpp
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