id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
7160,BOOST_DATE_TIME_POSIX_TIME_STD_CONFIG and DATE_TIME_NO_DEFAULT_CONSTRUCTOR,Ricky Stoneback <rwstoneback@…>,az_sw_dude,"I think I found a couple issues that are somewhat related to one another:

'''Issue 1 - Defining BOOST_DATE_TIME_POSIX_TIME_STD_CONFIG and using the ptime default constructor along with a thread causes runtime crash''' 

Steps to reproduce:
1. Define BOOST_DATE_TIME_POSIX_TIME_STD_CONFIG (to use nanosecond resolution in a posix_time) in the pre-processor definitions (VS2008).
2. Create a boost::posix_time::ptime using the default constructor.
3. Create a boost::thread and call join.
Example:
{{{
#include <iostream>
#include <boost/thread.hpp>

class ThreadClass
{
   public:
	ThreadClass()
	{
	}

	void operator()()
	{
	   return;
	}
};


int main()
{
	boost::posix_time::ptime currentTimeUTC;

	ThreadClass tc;
	boost::thread t(tc);
	t.join(); //causes a runtime access violation here

	std::cout << ""done"" << std::endl;
	system(""pause"");

	return 0;
}
}}}

'''Issue 2 - defining DATE_TIME_NO_DEFAULT_CONSTRUCTOR causes compile-time error ""no appropriate default constructor available""'''

In Issue 1 above, if you do not use a default constructor for a ptime, it seems to fix the issue. So I figured that was fine and I could prevent a user of my library from using that default constructor by defining DATE_TIME_NO_DEFAULT_CONSTRUCTOR. However, this now breaks at compile time:

Steps to reproduce:
1. Use the same code as above, just for ease of use.
2. Define the pre-processor definition: DATE_TIME_NO_DEFAULT_CONSTRUCTOR.
3. Compile the program.
4. The following error is produced: error C2512: 'boost::posix_time::ptime' : no appropriate default constructor available e:\libraries\boost\boost_1_47\boost\thread\win32\thread_data.hpp	145

The issue, I believe, is that I am using a boost thread, which uses a ptime default constructor in its ''explicit timeout(sentinal_type)'' constructor when it doesn't set the ''abs_time'' member variable.


I am using Boost 1.47, however looking at the latest boost code (1.51), I don't see any fixes for these issues that stand out (I am not able to try the latest versions of Boost, so I apologize if they are fixed, but I would think that they are not)",Bugs,new,To Be Determined,date_time,Boost 1.47.0,Problem,,"thread, asio, ptime, posix_time",