table of contents
std::chrono::day::operator++,std::chrono::day::operator--(3) | C++ Standard Libary | std::chrono::day::operator++,std::chrono::day::operator--(3) |
NAME¶
std::chrono::day::operator++,std::chrono::day::operator-- - std::chrono::day::operator++,std::chrono::day::operator--
Synopsis¶
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¶
// Run this code
#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¶
operator+= adds or subtracts a number of days
operator-= (public member function)
operator+ adds or subtracts a number of days and a day, or find the
difference
operator- between two days
(C++20) (function)
2024.06.10 | http://cppreference.com |