[Boost-users] [filesystem] path destructor crash

Subject: [Boost-users] [filesystem] path destructor crash
From: Patrick Steele (steele.patrick_at_[hidden])
Date: 2013-09-02 08:15:19

boost = 1.54
IDE = Visual Studio 2005 / 2012
OS = Windows 7

Hi,
I have a 32-bit application that I am upgrading from Visual Studio 2005 to
2012. If I place the following code at the beginning of the application:

{
    //test 1
    boost::filesystem::path blahPath;
}

{
    //test 2
    boost::filesystem::path blahPath = _T( "C:\\ProgramData\\blah" );
}

{
    //test 3
    boost::filesystem::path blahPath;
    std::wstring text = _T( "C:\\ProgramData\\blah" );
    blahPath = text;
}

then it works fine in Visual Studio 2005, however test 3 crashes in Visual
Studio 2012 with:

---------------------------
Microsoft Visual C++ Runtime Library
---------------------------
Debug Assertion Failed!

File: f:\dd\vctools\crt_bld\self_x86\crt\src\dbgdel.cpp
Line: 52

Expression: _BLOCK_TYPE_IS_VALID(pHead->nBlockUse)

and this callstack:

msvcr110d.dll!operator delete(void * pUserData) Line 52    C++
boost_filesystem-vc110-mt-gd-1_54.dll!std::allocator<wchar_t>::deallocate(wchar_t
* _Ptr, unsigned int __formal) Line 586    C++
boost_filesystem-vc110-mt-gd-1_54.dll!std::_Wrap_alloc<std::allocator<wchar_t>
>::deallocate(wchar_t * _Ptr, unsigned int _Count) Line 888    C++
boost_filesystem-vc110-mt-gd-1_54.dll!std::basic_string<wchar_t,std::char_traits<wchar_t>,std::allocator<wchar_t>
>::_Tidy(bool _Built, unsigned int _Newsize) Line 2265    C++
boost_filesystem-vc110-mt-gd-1_54.dll!std::basic_string<wchar_t,std::char_traits<wchar_t>,std::allocator<wchar_t>
>::~basic_string<wchar_t,std::char_traits<wchar_t>,std::allocator<wchar_t>
>() Line 965    C++
boost_filesystem-vc110-mt-gd-1_54.dll!boost::filesystem::path::~path()
C++
blah.exe!CPlanarApp::InitInstance() Line 152    C++
mfc110ud.dll!AfxWinMain(HINSTANCE__ * hInstance, HINSTANCE__ *
hPrevInstance, wchar_t * lpCmdLine, int nCmdShow) Line 37    C++
blah.exe!wWinMain(HINSTANCE__ * hInstance, HINSTANCE__ * hPrevInstance,
wchar_t * lpCmdLine, int nCmdShow) Line 26    C++
blah.exe!__tmainCRTStartup() Line 528    C
blah.exe!wWinMainCRTStartup() Line 377    C
kernel32.dll!75ce33aa()    Unknown
[Frames below may be incorrect and/or missing, no symbols loaded for
kernel32.dll]
ntdll.dll!76f09ef2()    Unknown
ntdll.dll!76f09ec5()    Unknown

The boost::filesystem::path destructor is being called and is causing a
crash. I do not understand how the first two tests can pass yet there is a
problem with the third test. Is there something that I am doing wrong here
or does anyone have any advice please?
Thanks,
Patrick