After running this program
(compiled with MSVC compiler 19.50.35723 with option /std:c++23preview/std:c++23preview)
#include <print>
#include <chrono>
#include <string>
int main() {
using namespace std::chrono;
system_clock::time_point tp1;
system_clock::time_point tp2;
std::string y1 = "01.01.2024";
std::string y2 = "01.01.2025";
std::istringstream is1{ y1.data() };
is1 >> parse("%d.%m.%Y", tp1);
std::istringstream is2{ y2.data() };
is2 >> parse("%d.%m.%Y", tp2);
std::println("{}", tp1);
std::println("{}", tp2);
auto duration = duration_cast<years>(tp2 - tp1);
std::println("duration: {} year(s)", duration);
return 0;
}
#include <print>
#include <chrono>
#include <string>
int main() {
using namespace std::chrono;
system_clock::time_point tp1;
system_clock::time_point tp2;
std::string y1 = "01.01.2024";
std::string y2 = "01.01.2025";
std::istringstream is1{ y1.data() };
is1 >> parse("%d.%m.%Y", tp1);
std::istringstream is2{ y2.data() };
is2 >> parse("%d.%m.%Y", tp2);
std::println("{}", tp1);
std::println("{}", tp2);
auto duration = duration_cast<years>(tp2 - tp1);
std::println("duration: {} year(s)", duration);
return 0;
}
I got the following result:
2024-01-01 00:00:00.0000000
2025-01-01 00:00:00.0000000
duration: 1[31556952]s year(s)
2024-01-01 00:00:00.0000000
2025-01-01 00:00:00.0000000
duration: 1[31556952]s year(s)
I was expecting a duration of exactly 1 year without fractional seconds, can someone help me out here?
