std::mktime does some things [1], but the example below will not detect any changes:


#include <ctime>

#include <iostream>



std::ostream& operator<<(std::ostream& os, const std::tm& t)

{

  os

    << "sec: " << t.tm_sec << '\n'

    << "min: " << t.tm_min << '\n'

    << "hour: " << t.tm_hour << '\n'

    << "mday: " << t.tm_mday << '\n'

    << "mon: " << t.tm_mon << '\n'

    << "year: " << t.tm_year << '\n'

    << "wday: " << t.tm_wday << '\n'

    << "yday: " << t.tm_yday << '\n'

    << "isdst: " << t.tm_isdst << '\n';

  return os;

};



int main ()

{

  std::time_t rawtime;

  std::time(&rawtime);

  std::tm * const timeinfo = std::localtime(&rawtime);



  std::cout << (*timeinfo) << '\n';



  std::mktime(timeinfo);



  std::cout << (*timeinfo) << '\n';

}

Screen output:


sec: 15

min: 38

hour: 10

mday: 28

mon: 5

year: 111

wday: 2

yday: 178

isdst: 1



sec: 15

min: 38

hour: 10

mday: 28

mon: 5

year: 111

wday: 2

yday: 178

isdst: 1

External links

cplusplus.com page about std::mktime

References

cplusplus.com page about std::mktime

Go back to Richel Bilderbeek's C++ page.

Go back to Richel Bilderbeek's homepage.

(C++) std::mktime

External links

References