#include <cassert>
#include <functional>
#include <iostream>
#include <sstream>
#include <string>
#include <boost/date_time/posix_time/posix_time.hpp>
#include <boost/date_time/gregorian/gregorian.hpp>
///Copy_if was dropped from the standard library by accident.
//From http://www.richelbilderbeek.nl/CppCopy_if.htm
template<typename In, typename Out, typename Pred>
Out Copy_if(In first, In last, Out res, Pred Pr)
{
while (first != last)
{
if (Pr(*first))
*res++ = *first;
++first;
}
return res;
}
///Returns date in YYYY-MM-DD format
//From http://www.richelbilderbeek.nl/CppGetDateIso8601.htm
const std::string GetDateIso8601()
{
const boost::gregorian::date today
= boost::gregorian::day_clock::local_day();
const std::string s
= boost::gregorian::to_iso_extended_string(today);
assert(s.size()==10);
assert(s[4]=='-');
assert(s[7]=='-');
return s;
}
///From http://www.richelbilderbeek.nl/CppGetTime.htm
const std::string GetTime()
{
//Get the local time
boost::posix_time::ptime now
= boost::posix_time::second_clock::local_time();
//Convert the time to std::stringstream
std::stringstream s;
s << now.time_of_day();
//Return the std::string
return s.str();
}
///Returns the current date and time as a YYYY_MM_DD_HH_MM_SS std::string,
///for example '2011_07_01_11_35_38'
///From http://www.richelbilderbeek.nl/CppGetTimestamp.htm
const std::string GetTimestamp()
{
std::string s = GetDateIso8601() + '_' + GetTime();
std::replace(s.begin(),s.end(),':','_');
std::replace(s.begin(),s.end(),'-','_');
return s;
}
int main()
{
//Example output:
//2011_07_01_11_37_27
std::cout << GetTimestamp() << '\n';
}
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