Implement P0092R1 for C++1z

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@252195 91177308-0d34-0410-b5e6-96231b3b80d8

test/std/utilities/time/time.duration/time.duration.alg/abs.fail.cpp

@@ -0,0 +1,27 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++03, c++11, c++14
+// <chrono>
+
+// ceil
+
+// template <class Rep, class Period>
+//   constexpr duration<Rep, Period> abs(duration<Rep, Period> d)
+
+// This function shall not participate in overload resolution unless numeric_limits<Rep>::is_signed is true.
+
+#include <chrono>
+
+typedef std::chrono::duration<unsigned> unsigned_secs;
+
+int main()
+{
+    std::chrono::abs(unsigned_secs(0));
+}

test/std/utilities/time/time.duration/time.duration.alg/abs.pass.cpp

@@ -0,0 +1,50 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++03, c++11, c++14
+
+// <chrono>
+
+// abs
+
+// template <class Rep, class Period>
+//   constexpr duration<Rep, Period> abs(duration<Rep, Period> d)
+
+#include <chrono>
+#include <type_traits>
+#include <cassert>
+
+template <class Duration>
+void
+test(const Duration& f, const Duration& d)
+{
+    {
+    typedef decltype(std::chrono::abs(f)) R;
+    static_assert((std::is_same<R, Duration>::value), "");
+    assert(std::chrono::abs(f) == d);
+    }
+}
+
+int main()
+{
+//  7290000ms is 2 hours, 1 minute, and 30 seconds
+    test(std::chrono::milliseconds( 7290000), std::chrono::milliseconds( 7290000));
+    test(std::chrono::milliseconds(-7290000), std::chrono::milliseconds( 7290000));
+    test(std::chrono::minutes( 122), std::chrono::minutes( 122));
+    test(std::chrono::minutes(-122), std::chrono::minutes( 122));
+    test(std::chrono::hours(0), std::chrono::hours(0));
+
+    {
+//  9000000ms is 2 hours and 30 minutes
+    constexpr std::chrono::hours h1 = std::chrono::abs(std::chrono::hours(-3));
+    static_assert(h1.count() == 3, "");
+    constexpr std::chrono::hours h2 = std::chrono::abs(std::chrono::hours(3));
+    static_assert(h2.count() == 3, "");
+    }
+}

test/std/utilities/time/time.duration/time.duration.cast/ceil.fail.cpp

@@ -0,0 +1,26 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++03, c++11, c++14
+// <chrono>
+
+// ceil
+
+// template <class ToDuration, class Rep, class Period>
+//   ToDuration
+//   ceil(const duration<Rep, Period>& d);
+
+// ToDuration shall be an instantiation of duration.
+
+#include <chrono>
+
+int main()
+{
+    std::chrono::ceil<int>(std::chrono::milliseconds(3));
+}

test/std/utilities/time/time.duration/time.duration.cast/ceil.pass.cpp

@@ -0,0 +1,51 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++03, c++11, c++14
+
+// <chrono>
+
+// ceil
+
+// template <class ToDuration, class Rep, class Period>
+//   constexpr
+//   ToDuration
+//   ceil(const duration<Rep, Period>& d);
+
+#include <chrono>
+#include <type_traits>
+#include <cassert>
+
+template <class ToDuration, class FromDuration>
+void
+test(const FromDuration& f, const ToDuration& d)
+{
+    {
+    typedef decltype(std::chrono::ceil<ToDuration>(f)) R;
+    static_assert((std::is_same<R, ToDuration>::value), "");
+    assert(std::chrono::ceil<ToDuration>(f) == d);
+    }
+}
+
+int main()
+{
+//  7290000ms is 2 hours, 1 minute, and 30 seconds
+    test(std::chrono::milliseconds( 7290000), std::chrono::hours( 3));
+    test(std::chrono::milliseconds(-7290000), std::chrono::hours(-2));
+    test(std::chrono::milliseconds( 7290000), std::chrono::minutes( 122));
+    test(std::chrono::milliseconds(-7290000), std::chrono::minutes(-121));
+
+    {
+//  9000000ms is 2 hours and 30 minutes
+    constexpr std::chrono::hours h1 = std::chrono::ceil<std::chrono::hours>(std::chrono::milliseconds(9000000));
+    static_assert(h1.count() == 3, "");
+    constexpr std::chrono::hours h2 = std::chrono::ceil<std::chrono::hours>(std::chrono::milliseconds(-9000000));
+    static_assert(h2.count() == -2, "");
+    }
+}

test/std/utilities/time/time.duration/time.duration.cast/floor.fail.cpp

@@ -0,0 +1,26 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++03, c++11, c++14
+// <chrono>
+
+// floor
+
+// template <class ToDuration, class Rep, class Period>
+//   ToDuration
+//   floor(const duration<Rep, Period>& d);
+
+// ToDuration shall be an instantiation of duration.
+
+#include <chrono>
+
+int main()
+{
+    std::chrono::floor<int>(std::chrono::milliseconds(3));
+}

test/std/utilities/time/time.duration/time.duration.cast/floor.pass.cpp

@@ -0,0 +1,50 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++03, c++11, c++14
+// <chrono>
+
+// floor
+
+// template <class ToDuration, class Rep, class Period>
+//   constexpr
+//   ToDuration
+//   floor(const duration<Rep, Period>& d);
+
+#include <chrono>
+#include <type_traits>
+#include <cassert>
+
+template <class ToDuration, class FromDuration>
+void
+test(const FromDuration& f, const ToDuration& d)
+{
+    {
+    typedef decltype(std::chrono::floor<ToDuration>(f)) R;
+    static_assert((std::is_same<R, ToDuration>::value), "");
+    assert(std::chrono::floor<ToDuration>(f) == d);
+    }
+}
+
+int main()
+{
+//  7290000ms is 2 hours, 1 minute, and 30 seconds
+    test(std::chrono::milliseconds( 7290000), std::chrono::hours( 2));
+    test(std::chrono::milliseconds(-7290000), std::chrono::hours(-3));
+    test(std::chrono::milliseconds( 7290000), std::chrono::minutes( 121));
+    test(std::chrono::milliseconds(-7290000), std::chrono::minutes(-122));
+
+    {
+//  9000000ms is 2 hours and 30 minutes
+    constexpr std::chrono::hours h1 = std::chrono::floor<std::chrono::hours>(std::chrono::milliseconds(9000000));
+    static_assert(h1.count() == 2, "");
+    constexpr std::chrono::hours h2 = std::chrono::floor<std::chrono::hours>(std::chrono::milliseconds(-9000000));
+    static_assert(h2.count() == -3, "");
+    }
+}

test/std/utilities/time/time.duration/time.duration.cast/round.fail.cpp

@@ -0,0 +1,26 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++03, c++11, c++14
+// <chrono>
+
+// round
+
+// template <class ToDuration, class Rep, class Period>
+//   ToDuration
+//   round(const duration<Rep, Period>& d);
+
+// ToDuration shall be an instantiation of duration.
+
+#include <chrono>
+
+int main()
+{
+    std::chrono::round<int>(std::chrono::milliseconds(3));
+}

test/std/utilities/time/time.duration/time.duration.cast/round.pass.cpp

@@ -0,0 +1,50 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++03, c++11, c++14
+// <chrono>
+
+// round
+
+// template <class ToDuration, class Rep, class Period>
+//   constexpr
+//   ToDuration
+//   ceil(const duration<Rep, Period>& d);
+
+#include <chrono>
+#include <type_traits>
+#include <cassert>
+
+template <class ToDuration, class FromDuration>
+void
+test(const FromDuration& f, const ToDuration& d)
+{
+    {
+    typedef decltype(std::chrono::round<ToDuration>(f)) R;
+    static_assert((std::is_same<R, ToDuration>::value), "");
+    assert(std::chrono::round<ToDuration>(f) == d);
+    }
+}
+
+int main()
+{
+//  7290000ms is 2 hours, 1 minute, and 30 seconds
+    test(std::chrono::milliseconds( 7290000), std::chrono::hours( 2));
+    test(std::chrono::milliseconds(-7290000), std::chrono::hours(-2));
+    test(std::chrono::milliseconds( 7290000), std::chrono::minutes( 122));
+    test(std::chrono::milliseconds(-7290000), std::chrono::minutes(-122));
+
+    {
+//  9000000ms is 2 hours and 30 minutes
+    constexpr std::chrono::hours h1 = std::chrono::round<std::chrono::hours>(std::chrono::milliseconds(9000000));
+    static_assert(h1.count() == 2, "");
+    constexpr std::chrono::hours h2 = std::chrono::round<std::chrono::hours>(std::chrono::milliseconds(-9000000));
+    static_assert(h2.count() == -2, "");
+    }
+}

test/std/utilities/time/time.point/time.point.cast/ceil.fail.cpp

@@ -0,0 +1,26 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++03, c++11, c++14
+// <chrono>
+
+// ceil
+
+// template <class ToDuration, class Clock, class Duration>
+//   time_point<Clock, ToDuration>
+//   ceil(const time_point<Clock, Duration>& t);
+
+// ToDuration shall be an instantiation of duration.
+
+#include <chrono>
+
+int main()
+{
+    std::chrono::ceil<int>(std::chrono::system_clock::now());
+}

test/std/utilities/time/time.point/time.point.cast/ceil.pass.cpp

@@ -0,0 +1,69 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++03, c++11, c++14
+// <chrono>
+
+// ceil
+
+// template <class ToDuration, class Clock, class Duration>
+//   time_point<Clock, ToDuration>
+//   ceil(const time_point<Clock, Duration>& t);
+
+#include <chrono>
+#include <type_traits>
+#include <cassert>
+
+template <class FromDuration, class ToDuration>
+void
+test(const FromDuration& df, const ToDuration& d)
+{
+    typedef std::chrono::system_clock Clock;
+    typedef std::chrono::time_point<Clock, FromDuration> FromTimePoint;
+    typedef std::chrono::time_point<Clock, ToDuration> ToTimePoint;
+    {
+    FromTimePoint f(df);
+    ToTimePoint t(d);
+    typedef decltype(std::chrono::ceil<ToDuration>(f)) R;
+    static_assert((std::is_same<R, ToTimePoint>::value), "");
+    assert(std::chrono::ceil<ToDuration>(f) == t);
+    }
+}
+
+template<class FromDuration, long long From, class ToDuration, long long To>
+void test_constexpr ()
+{
+    typedef std::chrono::system_clock Clock;
+    typedef std::chrono::time_point<Clock, FromDuration> FromTimePoint;
+    typedef std::chrono::time_point<Clock, ToDuration> ToTimePoint;
+    {
+    constexpr FromTimePoint f{FromDuration{From}};
+    constexpr ToTimePoint   t{ToDuration{To}};
+    static_assert(std::chrono::ceil<ToDuration>(f) == t, "");
+    }
+}
+
+
+int main()
+{
+//  7290000ms is 2 hours, 1 minute, and 30 seconds
+    test(std::chrono::milliseconds( 7290000), std::chrono::hours( 3));
+    test(std::chrono::milliseconds(-7290000), std::chrono::hours(-2));
+    test(std::chrono::milliseconds( 7290000), std::chrono::minutes( 122));
+    test(std::chrono::milliseconds(-7290000), std::chrono::minutes(-121));
+
+//  9000000ms is 2 hours and 30 minutes
+    test_constexpr<std::chrono::milliseconds, 9000000, std::chrono::hours,    3> ();
+    test_constexpr<std::chrono::milliseconds,-9000000, std::chrono::hours,   -2> ();
+    test_constexpr<std::chrono::milliseconds, 9000001, std::chrono::minutes, 151> ();
+    test_constexpr<std::chrono::milliseconds,-9000001, std::chrono::minutes,-150> ();
+
+    test_constexpr<std::chrono::milliseconds, 9000000, std::chrono::seconds, 9000> ();
+    test_constexpr<std::chrono::milliseconds,-9000000, std::chrono::seconds,-9000> ();
+}

test/std/utilities/time/time.point/time.point.cast/floor.fail.cpp

@@ -0,0 +1,26 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++03, c++11, c++14
+// <chrono>
+
+// floor
+
+// template <class ToDuration, class Clock, class Duration>
+//   time_point<Clock, ToDuration>
+//   floor(const time_point<Clock, Duration>& t);
+
+// ToDuration shall be an instantiation of duration.
+
+#include <chrono>
+
+int main()
+{
+    std::chrono::floor<int>(std::chrono::system_clock::now());
+}

test/std/utilities/time/time.point/time.point.cast/floor.pass.cpp

@@ -0,0 +1,68 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++03, c++11, c++14
+// <chrono>
+
+// floor
+
+// template <class ToDuration, class Clock, class Duration>
+//   time_point<Clock, ToDuration>
+//   floor(const time_point<Clock, Duration>& t);
+
+#include <chrono>
+#include <type_traits>
+#include <cassert>
+
+template <class FromDuration, class ToDuration>
+void
+test(const FromDuration& df, const ToDuration& d)
+{
+    typedef std::chrono::system_clock Clock;
+    typedef std::chrono::time_point<Clock, FromDuration> FromTimePoint;
+    typedef std::chrono::time_point<Clock, ToDuration> ToTimePoint;
+    {
+    FromTimePoint f(df);
+    ToTimePoint t(d);
+    typedef decltype(std::chrono::floor<ToDuration>(f)) R;
+    static_assert((std::is_same<R, ToTimePoint>::value), "");
+    assert(std::chrono::floor<ToDuration>(f) == t);
+    }
+}
+
+template<class FromDuration, long long From, class ToDuration, long long To>
+void test_constexpr ()
+{
+    typedef std::chrono::system_clock Clock;
+    typedef std::chrono::time_point<Clock, FromDuration> FromTimePoint;
+    typedef std::chrono::time_point<Clock, ToDuration> ToTimePoint;
+    {
+    constexpr FromTimePoint f{FromDuration{From}};
+    constexpr ToTimePoint   t{ToDuration{To}};
+    static_assert(std::chrono::floor<ToDuration>(f) == t, "");
+    }
+}
+
+int main()
+{
+//  7290000ms is 2 hours, 1 minute, and 30 seconds
+    test(std::chrono::milliseconds( 7290000), std::chrono::hours( 2));
+    test(std::chrono::milliseconds(-7290000), std::chrono::hours(-3));
+    test(std::chrono::milliseconds( 7290000), std::chrono::minutes( 121));
+    test(std::chrono::milliseconds(-7290000), std::chrono::minutes(-122));
+
+//  9000000ms is 2 hours and 30 minutes
+    test_constexpr<std::chrono::milliseconds, 9000000, std::chrono::hours,    2> ();
+    test_constexpr<std::chrono::milliseconds,-9000000, std::chrono::hours,   -3> ();
+    test_constexpr<std::chrono::milliseconds, 9000001, std::chrono::minutes, 150> ();
+    test_constexpr<std::chrono::milliseconds,-9000001, std::chrono::minutes,-151> ();
+
+    test_constexpr<std::chrono::milliseconds, 9000000, std::chrono::seconds, 9000> ();
+    test_constexpr<std::chrono::milliseconds,-9000000, std::chrono::seconds,-9000> ();
+}

test/std/utilities/time/time.point/time.point.cast/round.fail.cpp

@@ -0,0 +1,26 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++03, c++11, c++14
+// <chrono>
+
+// round
+
+// template <class ToDuration, class Clock, class Duration>
+//   time_point<Clock, ToDuration>
+//   round(const time_point<Clock, Duration>& t);
+
+// ToDuration shall be an instantiation of duration.
+
+#include <chrono>
+
+int main()
+{
+    std::chrono::round<int>(std::chrono::system_clock::now());
+}

test/std/utilities/time/time.point/time.point.cast/round.pass.cpp

@@ -0,0 +1,68 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++03, c++11, c++14
+// <chrono>
+
+// round
+
+// template <class ToDuration, class Clock, class Duration>
+//   time_point<Clock, ToDuration>
+//   round(const time_point<Clock, Duration>& t);
+
+#include <chrono>
+#include <type_traits>
+#include <cassert>
+
+template <class FromDuration, class ToDuration>
+void
+test(const FromDuration& df, const ToDuration& d)
+{
+    typedef std::chrono::system_clock Clock;
+    typedef std::chrono::time_point<Clock, FromDuration> FromTimePoint;
+    typedef std::chrono::time_point<Clock, ToDuration> ToTimePoint;
+    {
+    FromTimePoint f(df);
+    ToTimePoint t(d);
+    typedef decltype(std::chrono::round<ToDuration>(f)) R;
+    static_assert((std::is_same<R, ToTimePoint>::value), "");
+    assert(std::chrono::round<ToDuration>(f) == t);
+    }
+}
+
+template<class FromDuration, long long From, class ToDuration, long long To>
+void test_constexpr ()
+{
+    typedef std::chrono::system_clock Clock;
+    typedef std::chrono::time_point<Clock, FromDuration> FromTimePoint;
+    typedef std::chrono::time_point<Clock, ToDuration> ToTimePoint;
+    {
+    constexpr FromTimePoint f{FromDuration{From}};
+    constexpr ToTimePoint   t{ToDuration{To}};
+    static_assert(std::chrono::round<ToDuration>(f) == t, "");
+    }
+}
+
+int main()
+{
+//  7290000ms is 2 hours, 1 minute, and 30 seconds
+    test(std::chrono::milliseconds( 7290000), std::chrono::hours( 2));
+    test(std::chrono::milliseconds(-7290000), std::chrono::hours(-2));
+    test(std::chrono::milliseconds( 7290000), std::chrono::minutes( 122));
+    test(std::chrono::milliseconds(-7290000), std::chrono::minutes(-122));
+
+//  9000000ms is 2 hours and 30 minutes
+    test_constexpr<std::chrono::milliseconds, 9000000, std::chrono::hours,    2> ();
+    test_constexpr<std::chrono::milliseconds,-9000000, std::chrono::hours,   -2> ();
+    test_constexpr<std::chrono::milliseconds, 9000001, std::chrono::minutes, 150> ();
+    test_constexpr<std::chrono::milliseconds,-9000001, std::chrono::minutes,-150> ();
+
+    test_constexpr<std::chrono::milliseconds, 9000000, std::chrono::seconds, 9000> ();
+    test_constexpr<std::chrono::milliseconds,-9000000, std::chrono::seconds,-9000> ();
+}