C / C++ / MFC

string filename = "data.txt";      //the name of the file we want to input from / output to
	ifstream inFile(filename.c_str());    //'sets up' input from a file
	ofstream Out;                        //sets up output to a file

        //input a word from a file:
        string word;
        inFIle >> word;

        //output that word to a file:
        Out << word;

if(!sDir.CompareNoCase("M"))
{
      // They match
}

#include "tchar.h"

if (sDir.CompareNoCase(_T("M")) != 0)
{
    //...
}