Re: [Boost-users] [filesystem] path destructor crash

Subject: Re: [Boost-users] [filesystem] path destructor crash
From: Patrick Steele (steele.patrick_at_[hidden])
Date: 2013-09-04 03:45:02

Bump. Does anyone have any idea why this code is causing a crash please?

On 2 September 2013 13:15, Patrick Steele <steele.patrick_at_[hidden]> wrote:

> 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
>