C / C++ / MFC

double CAnaktisiDlg::FindDF(CString file , CArray < CString, CString > AFArray)
{
		CString LineRead ;
		CString str7;
		CString FilePathName;
		const int sz =100;
		char buf[sz];
		FilePathName = m_FolderName + file;
		ifstream FileText(FilePathName);
		while(FileText.get(buf,sz))
		{
			FileText.get();
			LineRead = (LPCSTR) buf;
			GetDFArray(LineRead);
			GetDF(AFArray);
	
		}
		FileText.close();	
	return 0.0;
}

void CAnaktisiDlg::GetDF(CArray < CString , CString > FArray)
{
	int nDf=0;
	int niDF = 0;
	for ( int i = 0 ; i <m_DFWords ; i++)
	{
		for ( int y = 0 ; y < FArray.GetSize() ; y++)
		{
			CString LineRead ;
			CString FilePathName;
			const int sz =100;
			char buf[sz];

			FilePathName = m_FolderName + FArray.GetAt(y);
			ifstream FileText(FilePathName);
			while(FileText.get(buf,sz))
			{
				FileText.get();
				LineRead = (LPCSTR) buf;
				GetLineArray(LineRead);
				nDf= Compare(i);				
			}
			niDF = niDF + nDf;
			FileText.close();	
		}
		double s = (double) nDoc/niDF;
		log10 ( s );
		EachWordIDF[i] = EachWordIDF[i] + (log10 ( s ) )* ( log10(s) );
	}
}