ok.pass.cpp (4464B)
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_day; 13 14 // constexpr bool ok() const noexcept; 15 // Returns: m_.ok() && y_.ok(). 16 17 #include <chrono> 18 #include <type_traits> 19 #include <cassert> 20 21 #include "test_macros.h" 22 23 int main() 24 { 25 using year = std::chrono::year; 26 using month = std::chrono::month; 27 using day = std::chrono::day; 28 using year_month_day = std::chrono::year_month_day; 29 30 constexpr month January = std::chrono::January; 31 32 ASSERT_NOEXCEPT( std::declval<const year_month_day>().ok()); 33 ASSERT_SAME_TYPE(bool, decltype(std::declval<const year_month_day>().ok())); 34 35 static_assert(!year_month_day{year{-32768}, month{}, day{}}.ok(), ""); // All three bad 36 37 static_assert(!year_month_day{year{-32768}, January, day{1}}.ok(), ""); // Bad year 38 static_assert(!year_month_day{year{2019}, month{}, day{1}}.ok(), ""); // Bad month 39 static_assert(!year_month_day{year{2019}, January, day{} }.ok(), ""); // Bad day 40 41 static_assert(!year_month_day{year{-32768}, month{}, day{1}}.ok(), ""); // Bad year & month 42 static_assert(!year_month_day{year{2019}, month{}, day{} }.ok(), ""); // Bad month & day 43 static_assert(!year_month_day{year{-32768}, January, day{} }.ok(), ""); // Bad year & day 44 45 static_assert( year_month_day{year{2019}, January, day{1}}.ok(), ""); // All OK 46 47 // Some months have a 31st 48 static_assert( year_month_day{year{2020}, month{ 1}, day{31}}.ok(), ""); 49 static_assert(!year_month_day{year{2020}, month{ 2}, day{31}}.ok(), ""); 50 static_assert( year_month_day{year{2020}, month{ 3}, day{31}}.ok(), ""); 51 static_assert(!year_month_day{year{2020}, month{ 4}, day{31}}.ok(), ""); 52 static_assert( year_month_day{year{2020}, month{ 5}, day{31}}.ok(), ""); 53 static_assert(!year_month_day{year{2020}, month{ 6}, day{31}}.ok(), ""); 54 static_assert( year_month_day{year{2020}, month{ 7}, day{31}}.ok(), ""); 55 static_assert( year_month_day{year{2020}, month{ 8}, day{31}}.ok(), ""); 56 static_assert(!year_month_day{year{2020}, month{ 9}, day{31}}.ok(), ""); 57 static_assert( year_month_day{year{2020}, month{10}, day{31}}.ok(), ""); 58 static_assert(!year_month_day{year{2020}, month{11}, day{31}}.ok(), ""); 59 static_assert( year_month_day{year{2020}, month{12}, day{31}}.ok(), ""); 60 61 // Everyone except FEB has a 30th 62 static_assert( year_month_day{year{2020}, month{ 1}, day{30}}.ok(), ""); 63 static_assert(!year_month_day{year{2020}, month{ 2}, day{30}}.ok(), ""); 64 static_assert( year_month_day{year{2020}, month{ 3}, day{30}}.ok(), ""); 65 static_assert( year_month_day{year{2020}, month{ 4}, day{30}}.ok(), ""); 66 static_assert( year_month_day{year{2020}, month{ 5}, day{30}}.ok(), ""); 67 static_assert( year_month_day{year{2020}, month{ 6}, day{30}}.ok(), ""); 68 static_assert( year_month_day{year{2020}, month{ 7}, day{30}}.ok(), ""); 69 static_assert( year_month_day{year{2020}, month{ 8}, day{30}}.ok(), ""); 70 static_assert( year_month_day{year{2020}, month{ 9}, day{30}}.ok(), ""); 71 static_assert( year_month_day{year{2020}, month{10}, day{30}}.ok(), ""); 72 static_assert( year_month_day{year{2020}, month{11}, day{30}}.ok(), ""); 73 static_assert( year_month_day{year{2020}, month{12}, day{30}}.ok(), ""); 74 75 static_assert(!year_month_day{year{2019}, std::chrono::February, day{29}}.ok(), ""); // Not a leap year 76 static_assert( year_month_day{year{2020}, std::chrono::February, day{29}}.ok(), ""); // Ok; 2020 is a leap year 77 78 for (unsigned i = 0; i <= 50; ++i) 79 { 80 year_month_day ym{year{2019}, January, day{i}}; 81 assert( ym.ok() == day{i}.ok()); 82 } 83 84 for (unsigned i = 0; i <= 50; ++i) 85 { 86 year_month_day ym{year{2019}, month{i}, day{12}}; 87 assert( ym.ok() == month{i}.ok()); 88 } 89 90 const int ymax = static_cast<int>(year::max()); 91 for (int i = ymax - 100; i <= ymax + 100; ++i) 92 { 93 year_month_day ym{year{i}, January, day{12}}; 94 assert( ym.ok() == year{i}.ok()); 95 } 96 }