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 year_month operator/(const year& y, const month& m) noexcept; 15 // Returns: {y, m}. 16 // 17 // constexpr year_month operator/(const year& y, int m) noexcept; 18 // Returns: y / month(m). 19 20 21 22 #include <chrono> 23 #include <type_traits> 24 #include <cassert> 25 26 #include "test_macros.h" 27 #include "test_comparisons.h" 28 29 int main() 30 { 31 using month = std::chrono::month; 32 using year = std::chrono::year; 33 using year_month = std::chrono::year_month; 34 35 constexpr month February = std::chrono::February; 36 37 { // operator/(const year& y, const month& m) 38 ASSERT_NOEXCEPT ( year{2018}/February); 39 ASSERT_SAME_TYPE(year_month, decltype(year{2018}/February)); 40 41 static_assert((year{2018}/February).year() == year{2018}, ""); 42 static_assert((year{2018}/February).month() == month{2}, ""); 43 for (int i = 1000; i <= 1030; ++i) 44 for (unsigned j = 1; j <= 12; ++j) 45 { 46 year_month ym = year{i}/month{j}; 47 assert(static_cast<int>(ym.year()) == i); 48 assert(static_cast<unsigned>(ym.month()) == j); 49 } 50 } 51 52 53 { // operator/(const year& y, const int m) 54 ASSERT_NOEXCEPT ( year{2018}/4); 55 ASSERT_SAME_TYPE(year_month, decltype(year{2018}/4)); 56 57 static_assert((year{2018}/2).year() == year{2018}, ""); 58 static_assert((year{2018}/2).month() == month{2}, ""); 59 60 for (int i = 1000; i <= 1030; ++i) 61 for (unsigned j = 1; j <= 12; ++j) 62 { 63 year_month ym = year{i}/j; 64 assert(static_cast<int>(ym.year()) == i); 65 assert(static_cast<unsigned>(ym.month()) == j); 66 } 67 } 68 } 69
