std::chrono::day::operator++, std::chrono::day::operator--

Since C++20

Adds or subtracts 1 from the day value.

# Declarations

constexpr std::chrono::day& operator++() noexcept;

(since C++20)

constexpr std::chrono::day operator++( int ) noexcept;

(since C++20)

constexpr std::chrono::day& operator--() noexcept;

(since C++20)

constexpr std::chrono::day operator--( int ) noexcept;

(since C++20)

# Notes

If the result would be outside the range [0,255], the actual stored value is unspecified.

# Example

#include <cassert>
#include <chrono>
 
int main()
{
    std::chrono::day d{15};
 
    ++d;
    assert(d == std::chrono::day(16));
 
    --d;
    assert(d == std::chrono::day(15));
}

# See also