I'm using Visual Studio 2005 SP1. If I compile a debug build with "#define _CRTDBG_MAP_ALLOC" (which is used to help track down memory leaks), then I get a lot of error messages from boost::pool (e.g., any of the example snippets in the documentation). The errors are shown below. It appears that with that symbol defined, several macros get defined in crtdbg.h, including the following: #define malloc(s) _malloc_dbg(s, _NORMAL_BLOCK, __FILE__, __LINE__) #define free(p) _free_dbg(p, _NORMAL_BLOCK) ...which I suspect is the source of the problem. Is this a pool bug, or is there something I'm supposed to #define to make this work? Thanks, Bob Marinier 1>c:\program files\boost\boost_1_35_0\boost\pool\simple_segregated_storage.hpp(99) : warning C4003: not enough actual parameters for macro 'malloc' 1>c:\program files\boost\boost_1_35_0\boost\pool\simple_segregated_storage.hpp(99) : error C2059: syntax error : ',' 1> c:\program files\boost\boost_1_35_0\boost\pool\simple_segregated_storage.hpp(161) : see reference to class template instantiation 'boost::simple_segregated_storage<SizeType>' being compiled 1>c:\program files\boost\boost_1_35_0\boost\pool\simple_segregated_storage.hpp(111) : error C2059: syntax error : 'constant' 1>c:\program files\boost\boost_1_35_0\boost\pool\pool.hpp(54) : error C2059: syntax error : 'constant' 1>c:\program files\boost\boost_1_35_0\boost\pool\pool.hpp(56) : error C2059: syntax error : 'constant' 1>c:\program files\boost\boost_1_35_0\boost\pool\pool.hpp(65) : error C2059: syntax error : 'constant' 1>c:\program files\boost\boost_1_35_0\boost\pool\pool.hpp(67) : error C2059: syntax error : 'constant' 1>c:\program files\boost\boost_1_35_0\boost\pool\pool.hpp(219) : warning C4003: not enough actual parameters for macro 'malloc' 1>c:\program files\boost\boost_1_35_0\boost\pool\pool.hpp(223) : warning C4003: not enough actual parameters for macro 'malloc' 1>c:\program files\boost\boost_1_35_0\boost\pool\pool.hpp(231) : warning C4003: not enough actual parameters for macro 'malloc' 1>c:\program files\boost\boost_1_35_0\boost\pool\pool.hpp(251) : warning C4002: too many actual parameters for macro 'free' 1>c:\program files\boost\boost_1_35_0\boost\pool\pool.hpp(219) : error C2059: syntax error : ',' 1> c:\program files\boost\boost_1_35_0\boost\pool\pool.hpp(278) : see reference to class template instantiation 'boost::pool<UserAllocator>' being compiled 1>c:\program files\boost\boost_1_35_0\boost\pool\pool.hpp(241) : error C2059: syntax error : 'constant' 1>c:\program files\boost\boost_1_35_0\boost\pool\pool.hpp(251) : error C2059: syntax error : 'constant' 1>c:\program files\boost\boost_1_35_0\boost\pool\pool.hpp(252) : error C2535: 'void boost::pool<UserAllocator>::_free_dbg(void *const )' : member function already defined or declared 1> c:\program files\boost\boost_1_35_0\boost\pool\pool.hpp(241) : see declaration of 'boost::pool<UserAllocator>::_free_dbg' 1>c:\program files\boost\boost_1_35_0\boost\pool\pool.hpp(451) : warning C4003: not enough actual parameters for macro 'malloc' 1>c:\program files\boost\boost_1_35_0\boost\pool\pool.hpp(500) : warning C4003: not enough actual parameters for macro 'malloc' 1>c:\program files\boost\boost_1_35_0\boost\pool\singleton_pool.hpp(55) : warning C4003: not enough actual parameters for macro 'malloc' 1>c:\program files\boost\boost_1_35_0\boost\pool\singleton_pool.hpp(59) : warning C4003: not enough actual parameters for macro 'malloc' 1>c:\program files\boost\boost_1_35_0\boost\pool\singleton_pool.hpp(91) : warning C4002: too many actual parameters for macro 'free' 1>c:\program files\boost\boost_1_35_0\boost\pool\singleton_pool.hpp(95) : warning C4002: too many actual parameters for macro 'free' 1>c:\program files\boost\boost_1_35_0\boost\pool\singleton_pool.hpp(55) : error C2059: syntax error : ',' 1> c:\program files\boost\boost_1_35_0\boost\pool\singleton_pool.hpp(115) : see reference to class template instantiation 'boost::singleton_pool' being compiled 1>c:\program files\boost\boost_1_35_0\boost\pool\singleton_pool.hpp(79) : error C2059: syntax error : 'constant' 1>c:\program files\boost\boost_1_35_0\boost\pool\singleton_pool.hpp(91) : error C2059: syntax error : 'constant' 1>c:\program files\boost\boost_1_35_0\boost\pool\singleton_pool.hpp(92) : error C2535: 'void boost::singleton_pool::_free_dbg(void *const )' : member function already defined or declared 1> c:\program files\boost\boost_1_35_0\boost\pool\singleton_pool.hpp(79) : see declaration of 'boost::singleton_pool::_free_dbg' 1>c:\program files\boost\boost_1_35_0\boost\pool\pool_alloc.hpp(180) : warning C4003: not enough actual parameters for macro 'malloc' 1>c:\program files\boost\boost_1_35_0\boost\pool\pool_alloc.hpp(194) : warning C4003: not enough actual parameters for macro 'malloc' 1>c:\program files\boost\boost_1_35_0\boost\pool\pool_alloc.hpp(210) : warning C4002: too many actual parameters for macro 'free' 1>c:\program files\boost\boost_1_35_0\boost\pool\simple_segregated_storage.hpp(99) : error C2059: syntax error : ',' 1> c:\program files\boost\boost_1_35_0\boost\pool\pool.hpp(134) : see reference to class template instantiation 'boost::simple_segregated_storage<SizeType>' being compiled 1> with 1> [ 1> SizeType=boost::default_user_allocator_new_delete::size_type 1> ] 1> c:\program files\boost\boost_1_35_0\boost\pool\pool_alloc.hpp(50) : see reference to class template instantiation 'boost::pool<UserAllocator>' being compiled 1> with 1> [ 1> UserAllocator=boost::default_user_allocator_new_delete 1> ] 1> c:\program files\microsoft visual studio 8\vc\include\vector(416) : see reference to class template instantiation 'boost::pool_allocator<T>' being compiled 1> with 1> [ 1> T=soarxml::xmlString 1> ] 1> c:\program files\microsoft visual studio 8\vc\include\vector(426) : see reference to class template instantiation 'std::_Vector_val<_Ty,_Alloc>' being compiled 1> with 1> [ 1> _Ty=soarxml::xmlString , 1> _Alloc=boost::pool_allocatorsoarxml::xmlString 1> ] 1> c:\bob\soar-dev\soarsuite\core\elementxml\include\elementxmlimpl.h(69) : see reference to class template instantiation 'std::vector<_Ty,_Ax>' being compiled 1> with 1> [ 1> _Ty=soarxml::xmlString, 1> _Ax=boost::pool_allocatorsoarxml::xmlString 1> ] 1>c:\program files\boost\boost_1_35_0\boost\pool\simple_segregated_storage.hpp(111) : error C2059: syntax error : 'constant' 1>c:\program files\boost\boost_1_35_0\boost\pool\pool.hpp(219) : error C2059: syntax error : ',' 1>c:\program files\boost\boost_1_35_0\boost\pool\pool.hpp(241) : error C2059: syntax error : 'constant' 1>c:\program files\boost\boost_1_35_0\boost\pool\pool.hpp(251) : error C2059: syntax error : 'constant' 1>c:\program files\boost\boost_1_35_0\boost\pool\pool.hpp(252) : error C2535: 'void boost::pool<UserAllocator>::_free_dbg(void *const )' : member function already defined or declared 1> with 1> [ 1> UserAllocator=boost::default_user_allocator_new_delete 1> ] 1> c:\program files\boost\boost_1_35_0\boost\pool\pool.hpp(241) : see declaration of 'boost::pool<UserAllocator>::_free_dbg' 1> with 1> [ 1> UserAllocator=boost::default_user_allocator_new_delete 1> ]