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      1 //===----------------------------------------------------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is dual licensed under the MIT and the University of Illinois Open
      6 // Source Licenses. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 // <chrono>
     11 
     12 // duration
     13 
     14 // template <class Rep1, class Period1, class Rep2, class Period2>
     15 //   constexpr
     16 //   bool
     17 //   operator< (const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs);
     18 
     19 // template <class Rep1, class Period1, class Rep2, class Period2>
     20 //   constexpr
     21 //   bool
     22 //   operator> (const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs);
     23 
     24 // template <class Rep1, class Period1, class Rep2, class Period2>
     25 //   constexpr
     26 //   bool
     27 //   operator<=(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs);
     28 
     29 // template <class Rep1, class Period1, class Rep2, class Period2>
     30 //   constexpr
     31 //   bool
     32 //   operator>=(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs);
     33 
     34 #include <chrono>
     35 #include <cassert>
     36 
     37 int main()
     38 {
     39     {
     40     std::chrono::seconds s1(3);
     41     std::chrono::seconds s2(3);
     42     assert(!(s1 < s2));
     43     assert(!(s1 > s2));
     44     assert( (s1 <= s2));
     45     assert( (s1 >= s2));
     46     }
     47     {
     48     std::chrono::seconds s1(3);
     49     std::chrono::seconds s2(4);
     50     assert( (s1 < s2));
     51     assert(!(s1 > s2));
     52     assert( (s1 <= s2));
     53     assert(!(s1 >= s2));
     54     }
     55     {
     56     std::chrono::milliseconds s1(3);
     57     std::chrono::microseconds s2(3000);
     58     assert(!(s1 < s2));
     59     assert(!(s1 > s2));
     60     assert( (s1 <= s2));
     61     assert( (s1 >= s2));
     62     }
     63     {
     64     std::chrono::milliseconds s1(3);
     65     std::chrono::microseconds s2(4000);
     66     assert( (s1 < s2));
     67     assert(!(s1 > s2));
     68     assert( (s1 <= s2));
     69     assert(!(s1 >= s2));
     70     }
     71     {
     72     std::chrono::duration<int, std::ratio<2, 3> > s1(9);
     73     std::chrono::duration<int, std::ratio<3, 5> > s2(10);
     74     assert(!(s1 < s2));
     75     assert(!(s1 > s2));
     76     assert( (s1 <= s2));
     77     assert( (s1 >= s2));
     78     }
     79     {
     80     std::chrono::duration<int, std::ratio<2, 3> > s1(10);
     81     std::chrono::duration<int, std::ratio<3, 5> > s2(9);
     82     assert(!(s1 < s2));
     83     assert( (s1 > s2));
     84     assert(!(s1 <= s2));
     85     assert( (s1 >= s2));
     86     }
     87     {
     88     std::chrono::duration<int, std::ratio<2, 3> > s1(9);
     89     std::chrono::duration<double, std::ratio<3, 5> > s2(10);
     90     assert(!(s1 < s2));
     91     assert(!(s1 > s2));
     92     assert( (s1 <= s2));
     93     assert( (s1 >= s2));
     94     }
     95 #ifndef _LIBCPP_HAS_NO_CONSTEXPR
     96     {
     97     constexpr std::chrono::seconds s1(3);
     98     constexpr std::chrono::seconds s2(3);
     99     static_assert(!(s1 < s2), "");
    100     static_assert(!(s1 > s2), "");
    101     static_assert( (s1 <= s2), "");
    102     static_assert( (s1 >= s2), "");
    103     }
    104     {
    105     constexpr std::chrono::seconds s1(3);
    106     constexpr std::chrono::seconds s2(4);
    107     static_assert( (s1 < s2), "");
    108     static_assert(!(s1 > s2), "");
    109     static_assert( (s1 <= s2), "");
    110     static_assert(!(s1 >= s2), "");
    111     }
    112     {
    113     constexpr std::chrono::milliseconds s1(3);
    114     constexpr std::chrono::microseconds s2(3000);
    115     static_assert(!(s1 < s2), "");
    116     static_assert(!(s1 > s2), "");
    117     static_assert( (s1 <= s2), "");
    118     static_assert( (s1 >= s2), "");
    119     }
    120     {
    121     constexpr std::chrono::milliseconds s1(3);
    122     constexpr std::chrono::microseconds s2(4000);
    123     static_assert( (s1 < s2), "");
    124     static_assert(!(s1 > s2), "");
    125     static_assert( (s1 <= s2), "");
    126     static_assert(!(s1 >= s2), "");
    127     }
    128     {
    129     constexpr std::chrono::duration<int, std::ratio<2, 3> > s1(9);
    130     constexpr std::chrono::duration<int, std::ratio<3, 5> > s2(10);
    131     static_assert(!(s1 < s2), "");
    132     static_assert(!(s1 > s2), "");
    133     static_assert( (s1 <= s2), "");
    134     static_assert( (s1 >= s2), "");
    135     }
    136     {
    137     constexpr std::chrono::duration<int, std::ratio<2, 3> > s1(10);
    138     constexpr std::chrono::duration<int, std::ratio<3, 5> > s2(9);
    139     static_assert(!(s1 < s2), "");
    140     static_assert( (s1 > s2), "");
    141     static_assert(!(s1 <= s2), "");
    142     static_assert( (s1 >= s2), "");
    143     }
    144     {
    145     constexpr std::chrono::duration<int, std::ratio<2, 3> > s1(9);
    146     constexpr std::chrono::duration<double, std::ratio<3, 5> > s2(10);
    147     static_assert(!(s1 < s2), "");
    148     static_assert(!(s1 > s2), "");
    149     static_assert( (s1 <= s2), "");
    150     static_assert( (s1 >= s2), "");
    151     }
    152 #endif
    153 }
    154