Hi all I am trying to use Boost library on 64 bit windows and it is crashing whenever i call a boost function. I am using boost 1.36 with VS2008 and i have used the bellow line to compile boost's 64 bit version. bjam debug release threading=multi --toolset=msvc-9.0 architecture=x86 address-model=64 I am using BOOST_ALL_DYN_LINK preprocessor to link to boost. It crashes after saying that heap may be corrupted. Also it works fine if compiled for 32 bit windows. Here is a sample code that replicates the issue: /********************************************/ #include "boost/filesystem.hpp" int wmain(int argc, wchar_t* argv[]) { wchar_t path[] = L"c:/temp/test"; if(boost::filesystem::exists(path) ) { printf("Path exists.\n"); } else { printf("Path does not exists.\n"); } return 0; } /********************************************/ Here is the call stack at the time of the crash.

msvcr90d.dll!_CrtIsValidHeapPointer(const void *

pUserData=0x00000000005e9780) Line 2103 C++ msvcr90d.dll!_free_dbg_nolock(void * pUserData=0x00000000005e9780, int nBlockUse=1) Line 1317 + 0xa bytes C++ msvcr90d.dll!_free_dbg(void * pUserData=0x00000000005e9780, int nBlockUse=1) Line 1258 + 0xe bytes C++ msvcr90d.dll!operator delete(void * pUserData=0x00000000005e9780) Line 54 + 0x12 bytes C++ msvcp90d.dll!std::allocator<unsigned short>::deallocate(unsigned short * _Ptr=0x00000000005e9780, unsigned __int64 __formal=16) Line 147 C++ msvcp90d.dll!std::basic_string<unsigned short,std::char_traits<unsigned short>,std::allocator<unsigned short>

::_Tidy(bool _Built=true, unsigned __int64 _Newsize=0) Line 2168 C++ msvcp90d.dll!std::basic_string<unsigned short,std::char_traits<unsigned short>,std::allocator<unsigned short> ::~basic_string<unsigned short,std::char_traits<unsigned short>,std::allocator<unsigned short> >() Line 916 + 0xf bytes C++

BoostTest.exe!boost::filesystem::exists<boost::filesystem::basic_path<std::basic_string<wchar_t,std::char_traits<wchar_t>,std::allocator<wchar_t>

,boost::filesystem::wpath_traits> >(const boost::filesystem::basic_path<std::basic_string<wchar_t,std::char_traits<wchar_t>,std::allocator<wchar_t> ,boost::filesystem::wpath_traits> & ph={...}) Line 292 C++ BoostTest.exe!boost::filesystem::exists(const boost::filesystem::basic_path<std::basic_string<wchar_t,std::char_traits<wchar_t>,std::allocator<wchar_t> ,boost::filesystem::wpath_traits> & ph={...}) Line 626 + 0x2d bytes C++ BoostTest.exe!wmain(int argc=1, wchar_t * * argv=0x00000000005c9340) Line 9 + 0x1a bytes C++ BoostTest.exe!__tmainCRTStartup() Line 579 + 0x19 bytes C BoostTest.exe!wmainCRTStartup() Line 399 C

Best Regards M. Noman Khan