Getting the current time as a YYYY-MM-DD-HH-MM-SS string

Question

I\'m trying to get the current time as a \"YYYY-MM-DD-HH-MM-SS\" formatted string in an elegant way. I can take the current time in ISO format from Boost\'s \"Date Time\" li

Answer 1

The answer depends on what you mean by get and take. If you are trying to output a formatted time string, use strftime(). If you are trying to parse a text string into a binary format, use strptime().

Answer 2

Use std::strftime, it is standard C++.

#include <cstdio>
#include <ctime>

int main ()
{
    std::time_t rawtime;
    std::tm* timeinfo;
    char buffer [80];

    std::time(&rawtime);
    timeinfo = std::localtime(&rawtime);

    std::strftime(buffer,80,"%Y-%m-%d-%H-%M-%S",timeinfo);
    std::puts(buffer);

    return 0;
}