465 lines
20 KiB
C++
465 lines
20 KiB
C++
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// The MIT License (MIT)
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//
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// Copyright (c) 2017 Howard Hinnant
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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// template <class Duration>
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// class zoned_time
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// {
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// public:
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// using duration = typename std::common_type<Duration, std::chrono::seconds>::type;
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//
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// zoned_time();
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// zoned_time(const sys_time<Duration>& st);
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// explicit zoned_time(const time_zone* z);
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// explicit zoned_time(std::string_view name);
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//
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// template <class Duration2,
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// class = typename std::enable_if
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// <
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// std::is_convertible<sys_time<Duration2>,
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// sys_time<Duration>>::value
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// >::type>
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// zoned_time(const zoned_time<Duration2>& zt) NOEXCEPT;
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//
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// zoned_time(const time_zone* z, const local_time<Duration>& tp);
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// zoned_time(std::string_view name, const local_time<Duration>& tp);
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// zoned_time(const time_zone* z, const local_time<Duration>& tp, choose c);
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// zoned_time(std::string_view name, const local_time<Duration>& tp, choose c);
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//
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// zoned_time(const time_zone* z, const zoned_time<Duration>& zt);
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// zoned_time(std::string_view name, const zoned_time<Duration>& zt);
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// zoned_time(const time_zone* z, const zoned_time<Duration>& zt, choose);
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// zoned_time(std::string_view name, const zoned_time<Duration>& zt, choose);
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//
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// zoned_time(const time_zone* z, const sys_time<Duration>& st);
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// zoned_time(std::string_view name, const sys_time<Duration>& st);
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//
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// zoned_time& operator=(const sys_time<Duration>& st);
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// zoned_time& operator=(const local_time<Duration>& ut);
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//
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// explicit operator sys_time<duration>() const;
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// explicit operator local_time<duration>() const;
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//
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// const time_zone* get_time_zone() const;
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// local_time<duration> get_local_time() const;
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// sys_time<duration> get_sys_time() const;
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// sys_info get_info() const;
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//
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// template <class Duration1, class Duration2>
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// friend
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// bool
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// operator==(const zoned_time<Duration1>& x, const zoned_time<Duration2>& y);
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//
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// template <class CharT, class Traits, class Duration1>
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// friend
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// std::basic_ostream<CharT, Traits>&
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// operator<<(std::basic_ostream<CharT, Traits>& os, const zoned_time<Duration1>& t);
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// };
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//
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// using zoned_seconds = zoned_time<std::chrono::seconds>;
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//
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// template <class Duration1, class Duration2>
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// inline
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// bool
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// operator!=(const zoned_time<Duration1>& x, const zoned_time<Duration2>& y);
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//
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// template <class Duration>
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// zoned_time(sys_time<Duration>)
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// -> zoned_time<std::common_type_t<Duration, std::chrono::seconds>>;
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//
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// template <class Zone, class Duration>
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// zoned_time(Zone, sys_time<Duration>)
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// -> zoned_time<std::common_type_t<Duration, std::chrono::seconds>>;
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//
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// template <class Zone, class Duration>
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// zoned_time(Zone, local_time<Duration>, choose = choose::earliest)
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// -> zoned_time<std::common_type_t<Duration, std::chrono::seconds>>;
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//
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// template <class Zone, class Duration>
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// zoned_time(Zone, zoned_time<Duration>, choose = choose::earliest)
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// -> zoned_time<std::common_type_t<Duration, std::chrono::seconds>>;
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#include "tz.h"
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#include <cassert>
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#include <sstream>
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#include <type_traits>
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int
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main()
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{
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using namespace std;
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using namespace std::chrono;
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using namespace date;
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static_assert( is_nothrow_destructible<zoned_seconds>{}, "");
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static_assert( is_default_constructible<zoned_seconds>{}, "");
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static_assert( is_nothrow_copy_constructible<zoned_seconds>{}, "");
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static_assert( is_nothrow_copy_assignable<zoned_seconds>{}, "");
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static_assert( is_nothrow_move_constructible<zoned_seconds>{}, "");
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static_assert( is_nothrow_move_assignable<zoned_seconds>{}, "");
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static_assert(is_same<zoned_time<minutes>::duration, seconds>{}, "");
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static_assert(is_same<zoned_seconds::duration, seconds>{}, "");
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static_assert(is_same<zoned_time<milliseconds>::duration, milliseconds>{}, "");
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// zoned_time();
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{
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zoned_seconds zt;
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assert(zt.get_sys_time() == sys_seconds{});
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assert(zt.get_time_zone()->name() == "Etc/UTC");
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}
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// zoned_time(const sys_time<Duration>& st);
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{
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static_assert(!is_convertible<sys_days, zoned_seconds>{}, "");
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static_assert( is_constructible<zoned_seconds, sys_days>{}, "");
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static_assert( is_convertible<sys_seconds, zoned_seconds>{}, "");
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static_assert(!is_convertible<sys_time<milliseconds>, zoned_seconds>{}, "");
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static_assert(!is_constructible<zoned_seconds, sys_time<milliseconds>>{}, "");
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auto now = floor<seconds>(system_clock::now());
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zoned_seconds zt = now;
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assert(zt.get_sys_time() == now);
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assert(zt.get_time_zone()->name() == "Etc/UTC");
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}
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// explicit zoned_time(const time_zone* z);
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{
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static_assert(!is_convertible<const time_zone*, zoned_seconds>{}, "");
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static_assert( is_constructible<zoned_seconds, const time_zone*>{}, "");
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zoned_seconds zt{locate_zone("America/New_York")};
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assert(zt.get_sys_time() == sys_seconds{});
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assert(zt.get_time_zone()->name() == "America/New_York");
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}
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// explicit zoned_time(std::string_view name);
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{
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static_assert(!is_convertible<std::string, zoned_seconds>{}, "");
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static_assert( is_constructible<zoned_seconds, std::string>{}, "");
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static_assert( is_constructible<zoned_seconds, const char*>{}, "");
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static_assert( is_constructible<zoned_seconds, const char[3]>{}, "");
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zoned_seconds zt{"America/New_York"};
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assert(zt.get_sys_time() == sys_seconds{});
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assert(zt.get_time_zone()->name() == "America/New_York");
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}
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// template <class Duration2,
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// class = typename std::enable_if
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// <
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// std::is_convertible<sys_time<Duration2>,
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// sys_time<Duration>>::value
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// >::type>
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// zoned_time(const zoned_time<Duration2>& zt) NOEXCEPT;
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{
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static_assert( is_convertible<zoned_time<days>, zoned_seconds>{}, "");
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static_assert(!is_constructible<zoned_time<days>, zoned_seconds>{}, "");
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zoned_time<days> zt1{"America/New_York", sys_days{2017_y/jul/5}};
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zoned_seconds zt2 = zt1;
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assert(zt2.get_sys_time() == sys_days{2017_y/jul/5});
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assert(zt2.get_time_zone()->name() == "America/New_York");
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}
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// zoned_time(const time_zone* z, const local_time<Duration>& tp);
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{
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static_assert( is_constructible<zoned_seconds, const time_zone*, local_days>{}, "");
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zoned_seconds zt = {locate_zone("America/New_York"), local_days{2017_y/jul/5}};
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assert(zt.get_local_time() == local_days{2017_y/jul/5});
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assert(zt.get_time_zone()->name() == "America/New_York");
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try
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{
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zoned_seconds zt1 = {locate_zone("America/New_York"),
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local_days{2017_y/mar/sun[2]} + hours{2} + minutes{15}};
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assert(false);
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}
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catch(const nonexistent_local_time&)
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{
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}
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try
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{
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zoned_seconds zt1 = {locate_zone("America/New_York"),
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local_days{2017_y/nov/sun[1]} + hours{1} + minutes{15}};
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assert(false);
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}
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catch(const ambiguous_local_time&)
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{
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}
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}
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// zoned_time(std::string_view name, const local_time<Duration>& tp);
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{
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static_assert( is_constructible<zoned_seconds, std::string, local_days>{}, "");
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static_assert( is_constructible<zoned_seconds, const char*, local_days>{}, "");
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zoned_seconds zt = {"America/New_York", local_days{2017_y/jul/5}};
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assert(zt.get_local_time() == local_days{2017_y/jul/5});
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assert(zt.get_time_zone()->name() == "America/New_York");
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try
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{
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zoned_seconds zt1 = {"America/New_York",
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local_days{2017_y/mar/sun[2]} + hours{2} + minutes{15}};
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assert(false);
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}
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catch(const nonexistent_local_time&)
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{
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}
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try
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{
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zoned_seconds zt1 = {"America/New_York",
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local_days{2017_y/nov/sun[1]} + hours{1} + minutes{15}};
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assert(false);
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}
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catch(const ambiguous_local_time&)
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{
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}
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}
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// zoned_time(const time_zone* z, const local_time<Duration>& tp, choose c);
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{
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static_assert( is_constructible<zoned_seconds, const time_zone*, local_days, choose>{}, "");
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zoned_seconds zt = {locate_zone("America/New_York"),
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local_days{2017_y/jul/5} + hours{2} + minutes{15},
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choose::earliest};
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assert(zt.get_sys_time() == sys_days{2017_y/jul/5} + hours{6} + minutes{15});
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assert(zt.get_time_zone()->name() == "America/New_York");
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zt = {locate_zone("America/New_York"),
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local_days{2017_y/jul/5} + hours{2} + minutes{15},
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choose::latest};
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assert(zt.get_sys_time() == sys_days{2017_y/jul/5} + hours{6} + minutes{15});
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assert(zt.get_time_zone()->name() == "America/New_York");
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static_assert( is_constructible<zoned_seconds, const time_zone*, local_days, choose>{}, "");
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zoned_seconds zt1 = {locate_zone("America/New_York"),
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local_days{2017_y/mar/sun[2]} + hours{2} + minutes{15},
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choose::earliest};
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assert(zt1.get_sys_time() == sys_days{2017_y/mar/12} + hours{7});
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assert(zt1.get_time_zone()->name() == "America/New_York");
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zoned_seconds zt2 = {locate_zone("America/New_York"),
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local_days{2017_y/mar/sun[2]} + hours{2} + minutes{15},
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choose::latest};
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assert(zt2.get_sys_time() == sys_days{2017_y/mar/12} + hours{7});
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assert(zt2.get_time_zone()->name() == "America/New_York");
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zoned_seconds zt3 = {locate_zone("America/New_York"),
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local_days{2017_y/nov/sun[1]} + hours{1} + minutes{15},
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choose::earliest};
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assert(zt3.get_sys_time() == sys_days{2017_y/nov/5} + hours{5} + minutes{15});
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assert(zt3.get_time_zone()->name() == "America/New_York");
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zoned_seconds zt4 = {locate_zone("America/New_York"),
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local_days{2017_y/nov/sun[1]} + hours{1} + minutes{15},
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choose::latest};
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assert(zt4.get_sys_time() == sys_days{2017_y/nov/5} + hours{6} + minutes{15});
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assert(zt4.get_time_zone()->name() == "America/New_York");
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}
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// zoned_time(std::string_view name, const local_time<Duration>& tp, choose c);
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{
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static_assert( is_constructible<zoned_seconds, std::string, local_days, choose>{}, "");
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static_assert( is_constructible<zoned_seconds, const char*, local_days, choose>{}, "");
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zoned_seconds zt = {"America/New_York",
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local_days{2017_y/jul/5} + hours{2} + minutes{15},
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choose::earliest};
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assert(zt.get_sys_time() == sys_days{2017_y/jul/5} + hours{6} + minutes{15});
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assert(zt.get_time_zone()->name() == "America/New_York");
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zt = {"America/New_York",
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local_days{2017_y/jul/5} + hours{2} + minutes{15},
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choose::latest};
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assert(zt.get_sys_time() == sys_days{2017_y/jul/5} + hours{6} + minutes{15});
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assert(zt.get_time_zone()->name() == "America/New_York");
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static_assert( is_constructible<zoned_seconds, const time_zone*, local_days, choose>{}, "");
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zoned_seconds zt1 = {"America/New_York",
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local_days{2017_y/mar/sun[2]} + hours{2} + minutes{15},
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choose::earliest};
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assert(zt1.get_sys_time() == sys_days{2017_y/mar/12} + hours{7});
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assert(zt1.get_time_zone()->name() == "America/New_York");
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zoned_seconds zt2 = {"America/New_York",
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local_days{2017_y/mar/sun[2]} + hours{2} + minutes{15},
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choose::latest};
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assert(zt2.get_sys_time() == sys_days{2017_y/mar/12} + hours{7});
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assert(zt2.get_time_zone()->name() == "America/New_York");
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zoned_seconds zt3 = {"America/New_York",
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local_days{2017_y/nov/sun[1]} + hours{1} + minutes{15},
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choose::earliest};
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assert(zt3.get_sys_time() == sys_days{2017_y/nov/5} + hours{5} + minutes{15});
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assert(zt3.get_time_zone()->name() == "America/New_York");
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zoned_seconds zt4 = {"America/New_York",
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local_days{2017_y/nov/sun[1]} + hours{1} + minutes{15},
|
||
|
|
choose::latest};
|
||
|
|
assert(zt4.get_sys_time() == sys_days{2017_y/nov/5} + hours{6} + minutes{15});
|
||
|
|
assert(zt4.get_time_zone()->name() == "America/New_York");
|
||
|
|
}
|
||
|
|
|
||
|
|
// zoned_time(const time_zone* z, const sys_time<Duration>& st);
|
||
|
|
{
|
||
|
|
static_assert( is_constructible<zoned_seconds, const time_zone*, sys_days>{}, "");
|
||
|
|
|
||
|
|
zoned_seconds zt = {locate_zone("America/New_York"),
|
||
|
|
sys_days{2017_y/jul/5} + hours{2} + minutes{15}};
|
||
|
|
assert(zt.get_sys_time() == sys_days{2017_y/jul/5} + hours{2} + minutes{15});
|
||
|
|
assert(zt.get_time_zone()->name() == "America/New_York");
|
||
|
|
}
|
||
|
|
|
||
|
|
// zoned_time(std::string_view name, const sys_time<Duration>& st);
|
||
|
|
{
|
||
|
|
static_assert( is_constructible<zoned_seconds, std::string, sys_days>{}, "");
|
||
|
|
static_assert( is_constructible<zoned_seconds, const char*, sys_days>{}, "");
|
||
|
|
|
||
|
|
zoned_seconds zt = {"America/New_York",
|
||
|
|
sys_days{2017_y/jul/5} + hours{2} + minutes{15}};
|
||
|
|
assert(zt.get_sys_time() == sys_days{2017_y/jul/5} + hours{2} + minutes{15});
|
||
|
|
assert(zt.get_time_zone()->name() == "America/New_York");
|
||
|
|
}
|
||
|
|
|
||
|
|
// zoned_time& operator=(const sys_time<Duration>& st);
|
||
|
|
{
|
||
|
|
static_assert( is_assignable<zoned_seconds, const sys_days&>{}, "");
|
||
|
|
|
||
|
|
zoned_seconds zt{"America/New_York"};
|
||
|
|
zt = sys_days{2017_y/jul/5};
|
||
|
|
assert(zt.get_sys_time() == sys_days{2017_y/jul/5});
|
||
|
|
assert(zt.get_time_zone()->name() == "America/New_York");
|
||
|
|
}
|
||
|
|
|
||
|
|
// zoned_time& operator=(const local_time<Duration>& st);
|
||
|
|
{
|
||
|
|
static_assert( is_assignable<zoned_seconds, const local_days&>{}, "");
|
||
|
|
|
||
|
|
zoned_seconds zt{"America/New_York"};
|
||
|
|
zt = local_days{2017_y/jul/5};
|
||
|
|
assert(zt.get_local_time() == local_days{2017_y/jul/5});
|
||
|
|
assert(zt.get_time_zone()->name() == "America/New_York");
|
||
|
|
try
|
||
|
|
{
|
||
|
|
zt = {"America/New_York",
|
||
|
|
local_days{2017_y/mar/sun[2]} + hours{2} + minutes{15}};
|
||
|
|
assert(false);
|
||
|
|
}
|
||
|
|
catch(const nonexistent_local_time&)
|
||
|
|
{
|
||
|
|
assert(zt.get_local_time() == local_days{2017_y/jul/5});
|
||
|
|
assert(zt.get_time_zone()->name() == "America/New_York");
|
||
|
|
}
|
||
|
|
try
|
||
|
|
{
|
||
|
|
zt = {"America/New_York",
|
||
|
|
local_days{2017_y/nov/sun[1]} + hours{1} + minutes{15}};
|
||
|
|
assert(false);
|
||
|
|
}
|
||
|
|
catch(const ambiguous_local_time&)
|
||
|
|
{
|
||
|
|
assert(zt.get_local_time() == local_days{2017_y/jul/5});
|
||
|
|
assert(zt.get_time_zone()->name() == "America/New_York");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// explicit operator sys_time<duration>() const;
|
||
|
|
{
|
||
|
|
static_assert(!is_convertible<zoned_seconds, sys_seconds>{}, "");
|
||
|
|
static_assert( is_constructible<sys_seconds, zoned_seconds>{}, "");
|
||
|
|
auto now = floor<seconds>(system_clock::now());
|
||
|
|
const zoned_seconds zt = {"America/New_York", now};
|
||
|
|
assert(sys_seconds{zt} == now);
|
||
|
|
}
|
||
|
|
|
||
|
|
// explicit operator local_time<duration>() const;
|
||
|
|
{
|
||
|
|
static_assert(!is_convertible<zoned_seconds, local_seconds>{}, "");
|
||
|
|
static_assert( is_constructible<local_seconds, zoned_seconds>{}, "");
|
||
|
|
auto now = local_days{2017_y/jul/5} + hours{23} + minutes{1} + seconds{48};
|
||
|
|
const zoned_seconds zt = {"America/New_York", now};
|
||
|
|
assert(local_seconds{zt} == now);
|
||
|
|
}
|
||
|
|
|
||
|
|
// const time_zone* get_time_zone() const;
|
||
|
|
{
|
||
|
|
const zoned_seconds zt{"America/New_York"};
|
||
|
|
assert(zt.get_time_zone() == locate_zone("America/New_York"));
|
||
|
|
}
|
||
|
|
|
||
|
|
// local_time<duration> get_local_time() const;
|
||
|
|
{
|
||
|
|
const zoned_seconds zt{"America/New_York", sys_days{2017_y/jul/6} +
|
||
|
|
hours{3} + minutes{7} + seconds{9}};
|
||
|
|
assert(zt.get_local_time() == local_days{2017_y/jul/5} +
|
||
|
|
hours{23} + minutes{7} + seconds{9});
|
||
|
|
}
|
||
|
|
|
||
|
|
// sys_time<duration> get_sys_time() const;
|
||
|
|
{
|
||
|
|
const zoned_seconds zt{"America/New_York", sys_days{2017_y/jul/6} +
|
||
|
|
hours{3} + minutes{7} + seconds{9}};
|
||
|
|
assert(zt.get_sys_time() == sys_days{2017_y/jul/6} +
|
||
|
|
hours{3} + minutes{7} + seconds{9});
|
||
|
|
}
|
||
|
|
|
||
|
|
// sys_info get_info() const;
|
||
|
|
{
|
||
|
|
const zoned_seconds zt{"America/New_York", sys_days{2017_y/jul/6} +
|
||
|
|
hours{3} + minutes{7} + seconds{9}};
|
||
|
|
auto info = zt.get_info();
|
||
|
|
assert(info.begin == sys_days{2017_y/mar/12} + hours{7});
|
||
|
|
assert(info.end == sys_days{2017_y/nov/5} + hours{6});
|
||
|
|
assert(info.offset == hours{-4});
|
||
|
|
assert(info.save != minutes{0});
|
||
|
|
assert(info.abbrev == "EDT");
|
||
|
|
}
|
||
|
|
|
||
|
|
// template <class Duration1, class Duration2>
|
||
|
|
// bool
|
||
|
|
// operator==(const zoned_time<Duration1>& x, const zoned_time<Duration2>& y);
|
||
|
|
{
|
||
|
|
const zoned_seconds zt{"America/New_York", sys_days{2017_y/jul/6} +
|
||
|
|
hours{3} + minutes{7} + seconds{9}};
|
||
|
|
const zoned_seconds zt1{"America/New_York", sys_days{2017_y/jul/6} +
|
||
|
|
hours{3} + minutes{7} + seconds{10}};
|
||
|
|
assert(zt == zt);
|
||
|
|
assert(!(zt == zt1));
|
||
|
|
}
|
||
|
|
|
||
|
|
// template <class Duration1, class Duration2>
|
||
|
|
// bool
|
||
|
|
// operator!=(const zoned_time<Duration1>& x, const zoned_time<Duration2>& y);
|
||
|
|
{
|
||
|
|
const zoned_seconds zt{"America/New_York", sys_days{2017_y/jul/6} +
|
||
|
|
hours{3} + minutes{7} + seconds{9}};
|
||
|
|
const zoned_seconds zt1{"America/New_York", sys_days{2017_y/jul/6} +
|
||
|
|
hours{3} + minutes{7} + seconds{10}};
|
||
|
|
assert(!(zt != zt));
|
||
|
|
assert(zt != zt1);
|
||
|
|
}
|
||
|
|
|
||
|
|
// template <class CharT, class Traits, class Duration1>
|
||
|
|
// std::basic_ostream<CharT, Traits>&
|
||
|
|
// operator<<(std::basic_ostream<CharT, Traits>& os, const zoned_time<Duration1>& t);
|
||
|
|
{
|
||
|
|
const zoned_seconds zt{"America/New_York", sys_days{2017_y/jul/6} +
|
||
|
|
hours{3} + minutes{7} + seconds{9}};
|
||
|
|
std::ostringstream test;
|
||
|
|
test << zt;
|
||
|
|
assert(test.str() == "2017-07-05 23:07:09 EDT");
|
||
|
|
}
|
||
|
|
}
|