How to calculate total line number of a text file

[akira32]

How to calculate total line number of a text file?
I have a text file. I want to get the total line number of it. Could somebody know which function should I use? Or I should write the counting code for each line?

[zerver]

int c;
while((c=fgetc(f))!=EOF)
  if(c=='\n')
    ++num_lines;

[_Superman_]

Use ifstream and its getline function.
For each successful getline function call increment a variable.

[dwurity]

Write code like below..

	CStdioFile sampleFile;
	sampleFile.Open( "\\...myfile.txt", CFile::modeRead );

	long length = 0;
	CString temp("");
	while( sampleFile.ReadString( temp ) )
	{
		length++;
	}

// length contains your line count..

Thanks,
dwurity