# std::chrono::year::operator+, std::chrono::year::operator-

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< cpp‎ | chrono‎ | year

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

Run this code

    #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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