NAME¶

std::chrono::time_point::max - std::chrono::time_point::max

Synopsis¶

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()).

Parameters¶

(none)

Return value¶

the largest possible time_point

Example¶

// Run this code

#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