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From: Aubrey, Jason (jason.aubrey_at_[hidden])
Date: 2006-10-31 16:43:18
Thanks for your suggestion Lawrence but I don't think it's related to
the problem.
I added the following after opening the file but it doesn't throw (since
the file is valid):
if( !file.is_open() )
throw std::exception("Unable to open file");
To prove that the file is valid:
1) I verified that the program creates the file
2) main() completes as expected.
The following is in regard to Rush's comment:
The call stack when trouble occurs is as follows:
msvcr71d.dll!operator delete(void * pUserData=0x00343418)
msvcp71d.dll!std::allocator<char>::deallocate(char *
_Ptr=0x00343418, unsigned int __formal=48)
msvcp71d.dll!std::string::_Tidy(bool _Built=true, unsigned int
_Newsize=0)
msvcp71d.dll!std::string::~string()
TestsD.exe!$E2()
msvcr71d.dll!doexit(int code=0, int quick=0, int retcaller=0)
msvcr71d.dll!exit(int code=0)
TestsD.exe!mainCRTStartup()
kernel32.dll!7c816d4f()
ntdll.dll!7c915b4f()
kernel32.dll!7c8399f3()
The offending code within delete() is:
_ASSERTE(_BLOCK_TYPE_IS_VALID(pHead->nBlockUse));
Unfortunately, I couldn't make any sense of the data in or near the bad
block.
Regards,
Jason
----------------------
Environment:
OS: Win2k
Compiler: VS7.1
Boost: v1.33.1
----------------------
#include <boost/filesystem/operations.hpp>
#include <fstream>
// Contrary to simplicity I've enhanced the following to satisfy
suggestions
int main(int, char**)
{
// Create a file
using namespace std;
const string fileName("/temp/test.txt");
ofstream file;
file.open(fileName.c_str());
if( !file.is_open() )
throw std::exception("Unable to open file");
const string message("this is a test");
file << message;
file.close();
const boost::filesystem::path filePath(fileName);
const boost::intmax_t fileSize =
boost::filesystem::file_size(filePath);
if( fileSize != message.size() )
throw std::exception("Bad result");
return 0; // This line is reached without trouble
}
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