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From: Woody on 12 Mar 2010 04:15
My app, written in C++ (Visual Studio 2005) fails to delete a file,
yet gives no error. This is occurring with the C runtime library
function 'remove(path)'.

// create file using fopen(path,"wb+") and write to it
// close file
err=remove(path); // err is always 0, meaning successful removal
// If I set a breakpoint here with the debugger, Windows Explorer
verifies the file has been removed
fopen(path,"wb+"); // open the file, which should now no longer exist

If I do not pause at the breakpoint, the file is created by the second
fopen, but its creation date/time is that of the existing file. This
is true even for files that existed when the app was started (i e,
hadn't been created by this run of the app). In both cases, it is a
debug build.

If I put a pause between 'remove' and fopen (Sleep(10 sec)), the file
is still not deleted.

The C runtime library uses DeleteFile; 'remove' just calls DeleteFile.
I cannot trace DeleteFile.

Can anyone explain this behavior?
From: Gaurav on 13 Mar 2010 19:34
Can you explain more about the function and the way you are writing to
the file. Its not only about opening file. The way you write to file
also matters. Just try the same code on gcc compiler. If if works fine
then there might be some problem with the Visual Studio.
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