libcxx/test/std/time/time.point/time.point.comparisons/op_less.pass.cpp

   1 //===----------------------------------------------------------------------===//
   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 // <chrono>
  10
  11 // time_point
  12
  13 // template <class Clock, class Duration1, class Duration2>
  14 //   bool
  15 //   operator< (const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs);
  16
  17 // template <class Clock, class Duration1, class Duration2>
  18 //   bool
  19 //   operator> (const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs);
  20
  21 // template <class Clock, class Duration1, class Duration2>
  22 //   bool
  23 //   operator<=(const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs);
  24
  25 // template <class Clock, class Duration1, class Duration2>
  26 //   bool
  27 //   operator>=(const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs);
  28
  29 #include <chrono>
  30 #include <cassert>
  31
  32 #include "test_macros.h"
  33
  34 int main(int, char**)
  35 {
  36     typedef std::chrono::system_clock Clock;
  37     typedef std::chrono::milliseconds Duration1;
  38     typedef std::chrono::microseconds Duration2;
  39     typedef std::chrono::time_point<Clock, Duration1> T1;
  40     typedef std::chrono::time_point<Clock, Duration2> T2;
  41
  42     {
  43     T1 t1(Duration1(3));
  44     T1 t2(Duration1(3));
  45     assert(!(t1 <  t2));
  46     assert(!(t1 >  t2));
  47     assert( (t1 <= t2));
  48     assert( (t1 >= t2));
  49     }
  50     {
  51     T1 t1(Duration1(3));
  52     T1 t2(Duration1(4));
  53     assert( (t1 <  t2));
  54     assert(!(t1 >  t2));
  55     assert( (t1 <= t2));
  56     assert(!(t1 >= t2));
  57     }
  58     {
  59     T1 t1(Duration1(3));
  60     T2 t2(Duration2(3000));
  61     assert(!(t1 <  t2));
  62     assert(!(t1 >  t2));
  63     assert( (t1 <= t2));
  64     assert( (t1 >= t2));
  65     }
  66     {
  67     T1 t1(Duration1(3));
  68     T2 t2(Duration2(3001));
  69     assert( (t1 <  t2));
  70     assert(!(t1 >  t2));
  71     assert( (t1 <= t2));
  72     assert(!(t1 >= t2));
  73     }
  74
  75 #if TEST_STD_VER > 11
  76     {
  77     constexpr T1 t1(Duration1(3));
  78     constexpr T1 t2(Duration1(3));
  79     static_assert(!(t1 <  t2), "");
  80     static_assert(!(t1 >  t2), "");
  81     static_assert( (t1 <= t2), "");
  82     static_assert( (t1 >= t2), "");
  83     }
  84     {
  85     constexpr T1 t1(Duration1(3));
  86     constexpr T1 t2(Duration1(4));
  87     static_assert( (t1 <  t2), "");
  88     static_assert(!(t1 >  t2), "");
  89     static_assert( (t1 <= t2), "");
  90     static_assert(!(t1 >= t2), "");
  91     }
  92     {
  93     constexpr T1 t1(Duration1(3));
  94     constexpr T2 t2(Duration2(3000));
  95     static_assert(!(t1 <  t2), "");
  96     static_assert(!(t1 >  t2), "");
  97     static_assert( (t1 <= t2), "");
  98     static_assert( (t1 >= t2), "");
  99     }
 100     {
 101     constexpr T1 t1(Duration1(3));
 102     constexpr T2 t2(Duration2(3001));
 103     static_assert( (t1 <  t2), "");
 104     static_assert(!(t1 >  t2), "");
 105     static_assert( (t1 <= t2), "");
 106     static_assert(!(t1 >= t2), "");
 107     }
 108 #endif
 109
 110   return 0;
 111 }