std::chrono::year::operator+, std::chrono::year::operator-
constexpr std::chrono::year operator+() noexcept; |
(1) | (since C++20) |
constexpr std::chrono::year operator-() noexcept; |
(2) | (since C++20) |
Applies the unary operators to the year value.
1) Returns a copy of
*this.
2) Returns a
year whose year value is the negation of that of
*this.
Return value
1)
*this
2)
std::chrono::year(-int(*this))
Example
#include <iostream>
#include <chrono>
int main()
{
constexpr std::chrono::year y {2020};
constexpr auto ny = -y;
std::cout << "The year " << (int)y << " negated is " << (int)ny << "\n";
}
Output:
The year 2020 negated is -2020
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