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 // UNSUPPORTED: c++98, c++03, c++11, c++14, c++17 10 11 // <chrono> 12 // class year_month; 13 14 // constexpr bool operator==(const year_month& x, const year_month& y) noexcept; 15 // Returns: x.year() == y.year() && x.month() == y.month(). 16 // 17 // constexpr bool operator< (const year_month& x, const year_month& y) noexcept; 18 // Returns: 19 // If x.year() < y.year() returns true. 20 // Otherwise, if x.year() > y.year() returns false. 21 // Otherwise, returns x.month() < y.month(). 22 23 #include <chrono> 24 #include <type_traits> 25 #include <cassert> 26 27 #include "test_macros.h" 28 #include "test_comparisons.h" 29 30 int main() 31 { 32 using year = std::chrono::year; 33 using month = std::chrono::month; 34 using year_month = std::chrono::year_month; 35 36 AssertComparisons6AreNoexcept<year_month>(); 37 AssertComparisons6ReturnBool<year_month>(); 38 39 static_assert( testComparisons6( 40 year_month{year{1234}, std::chrono::January}, 41 year_month{year{1234}, std::chrono::January}, 42 true, false), ""); 43 44 static_assert( testComparisons6( 45 year_month{year{1234}, std::chrono::January}, 46 year_month{year{1234}, std::chrono::February}, 47 false, true), ""); 48 49 static_assert( testComparisons6( 50 year_month{year{1234}, std::chrono::January}, 51 year_month{year{1235}, std::chrono::January}, 52 false, true), ""); 53 54 // same year, different months 55 for (unsigned i = 1; i < 12; ++i) 56 for (unsigned j = 1; j < 12; ++j) 57 assert((testComparisons6( 58 year_month{year{1234}, month{i}}, 59 year_month{year{1234}, month{j}}, 60 i == j, i < j ))); 61 62 // same month, different years 63 for (int i = 1000; i < 20; ++i) 64 for (int j = 1000; j < 20; ++j) 65 assert((testComparisons6( 66 year_month{year{i}, std::chrono::January}, 67 year_month{year{j}, std::chrono::January}, 68 i == j, i < j ))); 69 } 70
