std::chrono::time_point<Clock,Duration>::max
From cppreference.com
< cpp | chrono | time point
static constexpr time_point max(); |
(until C++20) | |
static constexpr time_point max() noexcept; |
(since C++20) | |
Returns a time_point
with the largest possible duration, i.e. time_point(duration::max()).
[edit] Parameters
(none)
[edit] Return value
The largest possible time_point
.
[edit] Example
Run this code
#include <chrono> #include <iostream> #include <vector> int main() { std::chrono::time_point<std::chrono::system_clock> now = std::chrono::system_clock::now(); std::vector<std::chrono::time_point<std::chrono::system_clock>> times { now - std::chrono::hours(24), now - std::chrono::hours(48), now + std::chrono::hours(24) }; std::chrono::time_point<std::chrono::system_clock> earliest = std::chrono::time_point<std::chrono::system_clock>::max(); std::cout << "all times:\n"; for (const auto& time : times) { std::time_t t = std::chrono::system_clock::to_time_t(time); std::cout << std::ctime(&t); if (time < earliest) earliest = time; } std::time_t t = std::chrono::system_clock::to_time_t(earliest); std::cout << "earliest:\n" << std::ctime(&t); }
Possible output:
all times: Sun Oct 7 19:06:48 2012 Sat Oct 6 19:06:48 2012 Tue Oct 9 19:06:48 2012 earliest: Sat Oct 6 19:06:48 2012