std::chrono::year::year
|
(1) | (since C++20) |
|
(2) | (since C++20) |
Constructs a year object.
1) Default constructor leaves the year value uninitialized.
2) If
y is in the range [-32767, 32767], constructs a year object holding the year value y. Otherwise the value held is unspecified.
Example
#include <chrono>
#include <iostream>
int main()
{
using namespace std::chrono;
constexpr int 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].© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
https://en.cppreference.com/w/cpp/chrono/year/year