Better way to read in TXT Files (now very very slow)

[Insider1984]

I'm looking for a faster and better way to read in straight txt files (with newline characters in tact etc).

Right now I basically rip the characters out 1 by one adding them to a dynamic array. it worked for some older programs that took txt files only 100-1000 characters long but now I have 100kb txt files that I want to load into a CString.

Is there a Visual C++ class? Is it easy? Fast?

Thanks for the help.

=====================
Insider
4 year 'on the fly' programmer
C++ Basic Java

 

[palbano]

Try this and see if it is faster.

void CMainDlg::readfile( CString& outstr, LPCTSTR filename){

	CFile f;
	f.Open(filename, CFile::modeRead);
	char* buf = outstr.GetBufferSetLength( f.GetLength());
	f.Read( buf, f.GetLength());
	outstr.ReleaseBuffer();
	f.Close();
}

-pete

 

[Insider1984]

Okay I found CFile. Wow does it seem easy but a few problems:

MY Char -> Char allowed me to cut at the end of the file with 'EOF'.

This code below always seems to give me 5-0 characters of junk at the end. Any help would be great:

(The inactive line gave me no help and could be wrong anyway)

	CFile file_in;
	CString file_name="C:\\temp.txt";
	file_in.Open(file_name,CFile::modeRead);
	char* buffer = new char[file_in.GetLength()];
	file_in.Read(buffer,file_in.GetLength());
	//buffer1 = buffer1.Mid(0,buffer1.Find(EOF));
	AfxMessageBox(buffer,MB_OK);

=====================
Insider
4 year 'on the fly' programmer
C++ Basic Java

 

[BEHZADTALA]

Hi,
maybe, the following code help you

CStdioFile inFile("MyFile.bin"), CFile::modeRead |
                   CFile::typebinary);

const UINT linelength = 18;
TCHAR strBuf[20]; // or CString

while(inFile.ReadString(strBuf, linelength))
{
  //search for the word in strBuf 
}