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(std::chrono::duration::max()).
(none).
the largest possible time_point.
#include <chrono>
#include <vector>
#include <iostream>
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
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