std::chrono::day::operator++, std::chrono::day::operator--
constexpr std::chrono::day& operator++() noexcept; | (1) | (since C++20) |
constexpr std::chrono::day operator++( int ) noexcept; | (2) | (since C++20) |
constexpr std::chrono::day& operator--() noexcept; | (3) | (since C++20) |
constexpr std::chrono::day operator--( int ) noexcept; | (4) | (since C++20) |
Adds or subtracts 1 from the day value.
1,2) Performs
*this += std::chrono::days{1};.
3,4) Performs
*this -= std::chrono::days{1};.Parameters
(none)
Return value
1,3) A reference to this
day after modification.
2,4) A copy of the
day made before modification.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
| adds or subtracts a number of days (public member function) |
|
|
(C++20) | adds or subtracts a number of days and a day, or find the difference between two days (function) |
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