Conflict mutex.hpp together with move.hpp

[orlov@…]

When trying to compile the following code:

#ifndef	FRAME_DATA_QUEUE_H
#define	FRAME_DATA_QUEUE_H

#include <queue>
//#include <boost/thread/locks.hpp>
#include <boost/thread/mutex.hpp>

//#include <IPStream/Decoder/FrameData.h>

typedef int PFrameData;

class CFrameDataQueue
{
public:
	void			PushData(PFrameData pData);
	PFrameData		PopData();
	bool			IsQueueEmpty();
	int				GetSize();
	void			Lock();
	void			Unlock();
	void			Clean();

private:
	typedef std::queue<PFrameData>	TFrameDataQueue;

	TFrameDataQueue							m_FrameDataQueue;
	boost::mutex							m_FrameDataQueueMutex;
	//boost::unique_lock<boost::mutex>		m_Lock;
};

typedef	boost::shared_ptr<CFrameDataQueue>	PFrameDataQueue;

#endif	// FRAME_DATA_QUEUE_H

I got the error (MS Visual Studio 2010 SP1):

1>------ Build started: Project: LibIPStream, Configuration: Debug x64 ------
1>Build started 15.11.2012 16:45:47.
1>InitializeBuildStatus:
1>  Touching "x64\Debug\LibIPStream.unsuccessfulbuild".
1>ClCompile:
1>  FrameDataServerMediaSubsession.cpp
1>  FrameDataSignalSource.cpp
1>D:\SDK_64\boost_1_52_0\boost/move/move.hpp(142): error C2062: type 'bool' unexpected
1>          D:\SDK_64\boost_1_52_0\boost/move/move.hpp(143) : see reference to class template instantiation 'boost::move_detail::not_<__formal>' being compiled
1>D:\SDK_64\boost_1_52_0\boost/move/move.hpp(143): error C2143: syntax error : missing ';' before '{'
1>D:\SDK_64\boost_1_52_0\boost/move/move.hpp(143): fatal error C1004: unexpected end-of-file found
1>D:\SDK_64\boost_1_52_0\boost/move/move.hpp(142): error C2062: type 'bool' unexpected
1>          D:\SDK_64\boost_1_52_0\boost/move/move.hpp(143) : see reference to class template instantiation 'boost::move_detail::not_<__formal>' being compiled
1>D:\SDK_64\boost_1_52_0\boost/move/move.hpp(143): error C2143: syntax error : missing ';' before '{'
1>D:\SDK_64\boost_1_52_0\boost/move/move.hpp(143): fatal error C1004: unexpected end-of-file found
1>
1>Build FAILED.
1>
1>Time Elapsed 00:00:02.60
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

Commenting struct "not_" from move.hpp does the trick:

   //template <typename Boolean>
   //  struct not_
   //    : public integral_constant<bool, !Boolean::value>
   //{};

[Ion Gaztañaga]

The example compiles fine in my Visual 2010 installation with Boost 1.52 (adding a main(){} line in the end of the example).

However, reviewing Thread code I see that it uses non-public Boost.Thread internal classes and defines (like BOOST_MOVE_BOOST_NS, rv<> or has_move_emulation_enabled) not detailed in the documentation. I think that can be source of future incompatibility problems between Thread and Move, as Boost.Thread tries to support multiple move emulations. Much of those internals will change in future versions.

[Ion Gaztañaga]

This bug was already fixed in Boost 1.53. Thanks for the report.