boost date/time

I have the following code but get the locale error when I try to compile

#include <iostream>
#include <string>
#include <locale>

#include "boost/date_time/gregorian/gregorian.hpp"
#include <boost/date_time/gregorian/parsers.hpp>
#include <boost/date_time/posix_time/posix_time.hpp>
#include <boost/date_time/posix_time/posix_time_io.hpp>

using namespace boost::posix_time;
using namespace boost::gregorian;

int main(int argc, char *argv[])
{
  std::string ds("2011-01-02");
  date dt(from_string(ds));

  date_facet *f=new date_facet("%Y-%m-%d");
  std::locale loc=std::locale(std::locale("en_US"),f);
  std::cout.imbue(loc);

  time_facet *facet = new time_facet("%Y-%m-%d %H:%M:%S");
  std::cout<<second_clock::local_time()<<std::endl;

  return 0;
}

This is the error message:

In function ‘int main(int, char**)’:
test.cpp:18:1: error: ‘locale’ was not declared in this scope
test.cpp:18:8: error: expected ‘;’ before ‘loc’

after the edits, the error is:

In function ‘int main(int, char**)’:
test.cpp:18:开发者_开发技巧1: error: ‘locale’ was not declared in this scope

---

Your missing std:: in front of locale. Specifically,

locale loc=locale(locale("en_US"),f);

should become

std::locale loc=std::locale(std::locale("en_US"),f);

And you need to #include <locale>.

---

Boost.DateTime has a binary component that is only needed if you're using its to_string/from_string

from the getting started guide

You should build it first, this should help