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      std::chrono::year::year

      From cppreference.com
      <cpp‎ |chrono‎ |year
       
       
      Date and time library
       
       
      year()=default;
      (1)(since C++20)
      constexprexplicit year(int y)noexcept;
      (2)(since C++20)

      Constructs ayear object.

      1) Default constructor leaves the year value uninitialized.
      2) Ify is in the range[-3276732767], constructs ayear object holding the year valuey. Otherwise the value held is unspecified.

      [edit]Example

      Run this code
      #include <chrono>#include <iostream> int main(){usingnamespace std::chrono; constexprint leap_years=[]{int count{};for(int i{year::min()}; i<=int{year::max()};++i)if(year{i}.is_leap())// uses constructor (2)++count;return count;}();     static_assert(15891== leap_years); std::cout<<"There are "<< leap_years<<" leap years in the range ["<<int(year::min())<<", "<<int(year::max())<<"].\n";}

      Output:

      There are 15891 leap years in the range [-32767, 32767].
      Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/chrono/year/year&oldid=159687"

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