How do I use std::chrono to return the date and time as a string in C++?

Asked Sep 15 '17 at 05:15

Active Sep 15 '17 at 05:28

Viewed 100 times

I was looking at a similar post, that showed how to use the ctime header file, to return the time as a string, but since the release of C++11 there has been an addition that was std::chrono. But having this feature in chrono, how can I use it? Even our application uses the old ctime, header to return the date/time. This is the code, we're currently using:

#include <iostream>
#include <ctime>
#include <string>
using namespace std;
int returnTime()
{
    time_t rt;
    struct tm * timeinfo;
    char tbf[80];
    time(&rt);
    timeinfo = localtime(&rt);
    strftime(tbf, sizeof(tbf), "%d-%m-%Y %I:%M:%S", timeinfo);
string _now(tbf);
return 0;
}

edited Sep 15 '17 at 05:28

asked Sep 15 '17 at 05:15

Sayan N.

There are no such headers as `ctime.h` and `chrono.h`, there is `` and ``. That being said `` doesn't have what you ask for. – DeiDei Sep 15 '17 at 05:18
@DeiDei The IDE we use, demands us to use '.h' for all headers. – Sayan N. Sep 15 '17 at 05:23
1

stdax.h should be the first header (or even better not to use it and disable Recompiled headers) – Artemy Vysotsky Sep 15 '17 at 05:24
1

@SayanN. That sounds like a bad ide. Also if that were the case how can you include ``? – Paul Rooney Sep 15 '17 at 05:25
https://stackoverflow.com/a/34858704/8491726 – Artemy Vysotsky Sep 15 '17 at 05:25
Indeed a bad IDE! Now I'm updating the question with the one compiled using VS2017 – Sayan N. Sep 15 '17 at 05:26
I've added an answer to the original question which gives an alternative that is easier to use, more flexible, type-safe, and being proposed for standardization: https://stackoverflow.com/a/46240575/576911 – Howard Hinnant Sep 15 '17 at 13:20
All the code has been fixed – Sayan N. Dec 08 '17 at 08:44
The C++ error was because of a new VS2017 update that broke several headers – Sayan N. Dec 08 '17 at 08:44
Finally fixed - the code is fully functional now! – Sayan N. Dec 08 '17 at 08:46

How do I use std::chrono to return the date and time as a string in C++?

0 Answers0