CODEWITHSUNDEEP
c++boost
Jonas Zimmer
Jonas Zimmer

Reputation: 171

boost: time_facet milliseconds without dot

I need to create a timestamp with boost in the format: YYYYmmDDhhMMssFFFF (with F = Milliseconds). I use

facet->format("%Y%m%d%H%M%S%F");

but the output includes always a dot between seconds and milliseconds. This is the output: "20150202140830.779716"

Is there a better way to achieve my format than to replace the dot and cut the last two digits by hand?

Upvotes: 1

Views: 2171

Answers (1)

sehe
sehe

Reputation: 393709

In case you're interested, I implemented a custom facet the other day here: Format a posix time with just 3 digits in fractional seconds

You could use the same approach here:

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#include "time_facet.hpp"
#include <boost/date_time/posix_time/posix_time.hpp>

int main()
{
    using namespace boost::posix_time;
    ptime const date_time = microsec_clock::local_time();

    std::cout << date_time << std::endl;

    auto facet = new time_facet("%Y-%b-%d %H:%M:%S%4 %z");
    std::cout.imbue(std::locale(std::cout.getloc(), facet));
    std::cout << date_time << std::endl;
}

Prints:

2015-Feb-02 22:01:00.926982
2015-Feb-02 22:01:009269

Upvotes: 1

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