ANSI remove() and MS DeleteFile()

[Liucy]

Dear all,
I encounter a problem about DeleteFile() with ANSI stdio functions.
It always fails to delete file and sets ERROR_SHARING_VIOLATION.
I know I can use remove() instead of DeleteFile(), but it make me confused.
Is MS File Management Functions and ANSI stdio functions not compatible?
the code is:

#include <stdio.h>
#include <windows.h>
int main(int argc, char* argv[])
{
    FILE* fp = fopen("C:/testFS.txt", "wt");
    fclose(fp);
                // remove("C:/testFS.txt");
    if (DeleteFile(_T("C:/testFS,txt")) == 0)
    {
                                // It always be here. why?
        DWORD err = GetLastError();
        if (err == ERROR_SHARING_VIOLATION)
        {
            printf("ERROR_SHARING_VIOLATION\n");
        }
        else
        {
            printf("Other error: %d\n", err);
        }
    }
    return 0;
}

[weaknessforcats]

What compiler are you using???

Your code won't compile in Visual Studio.NET 2005. The _T macro was not defined because you did not include tchar.h. And if you are using the tchar mappings, you are using a main() instead of a _tmain().

Beyond that, your file paths have the slashes in the wrong direction. That means the file never opened (you didn't check that) and never deleted.

I fixed your code and it works fine now. There is no incompatibilty between Microsoft and ANSI C file I/O.

Here is your fixed code:

#include <iostream>
using namespace std;
#include <fstream>
#include <stdio.h>
#include <windows.h>
#include <tchar.h>
int _tmain(int argc, char* argv[])
{
    FILE* fp = fopen(TEXT("C:\\testFS.txt"), TEXT("wt"));
    fclose(fp);
                // remove("C:/testFS.txt");
    if (DeleteFile(TEXT("C:\\testFS.txt")) == 0)
    {
                                // It always be here. why?
        DWORD err = GetLastError();
        if (err == ERROR_SHARING_VIOLATION)
        {
            _tprintf(TEXT("ERROR_SHARING_VIOLATION\n"));
        }
        else
        {
            _tprintf(TEXT("Other error: %d\n"), err);
        }
    return 0;
}
 

I stll didn't add the the check for fopen().