std::chrono::year::operator+, std::chrono::year::operator-
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std::chrono::year
Member functions
year::operator+year::operator-
Nonmember functions
Helper classes
(C++26)
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.[edit] Return value
1) *this
2) std::chrono::year (-int(*this))
[edit] Example
Run this code
#include <chrono> #include <iostream> 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