how to find all folders under directory [closed] - c++

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I tested find all folders under a directory with the environment of visual studio using mfc. Simply make a mfc dlg, add a button, paste the code below. The only variable to give is "product_path" directory with folders, empty folder is ok name like 123,or abc, or ABC.
Testing:
test 1 folders named 123,456.
result:can be found all.
test 2 folders named 123,456,ab.
result:the folder name ab can not found.
test 3 folders named 123,ab,AB.
result:the folder name AB can not found.
/*vector_folder_name used to store found folders*/
vector<CString> vector_folder_name;
/*product_path directory with folders*/
CString product_path=_T("..\\ProductType");
//sprintf(product_path,"..\\%s","ProductType");
if (product_path.Right(1) != "\\")
{
product_path += _T("\\");
}
product_path += _T("*.*");
CFileFind ff;
BOOL ret = ff.FindFile(product_path);
while (ret)
{
ret = ff.FindNextFile();
if (ret != 0)
{
if (ff.IsDirectory() && !ff.IsDots())
{
//CString path = ff.GetFilePath();
CString folder_name = ff.GetFileName();
vector_folder_name.push_back(folder_name);
//TraverseDir(path, vec);
}
//else /*if(!ff.IsDirectory() && !ff.IsDots())*/
//{
// CString name = ff.GetFileName();
// CString path = ff.GetFilePath();
// vector_folder_name.push_back(path);
//}
}
}
//sort(vector_folder_name.begin(),vector_folder_name.end());
sort(vector_folder_name.begin(),vector_folder_name.end(),compare1);
ff.Close(); // do not foget close

Answer 1

Your problem is totally unrelated to uppercase or lower case file names, and there is nothing magic about the situation, but your code is incorrect. It's also unrelated to the compare1 function
FindNextFile returns FALSE upon the last file found and therefore your code simply skips the last file found.
In other words if FindNextFile returns FALSE, it's not an error but it means that you've got the last file in the directory.
This (even simpler) code works:
...
BOOL ret = ff.FindFile(product_path);
while (ret)
{
ret = ff.FindNextFile();
if (ff.IsDirectory() && !ff.IsDots())
{
// it's a directory
CString folder_name = ff.GetFileName();
vector_folder_name.push_back(folder_name);
}
}
...
I've removed your outcommented code.