some cpp files

#include <string>

#include <iostream>

#include <fstream>

using namespace std;

int main()

{

string word;

int retval=0;

ofstream outfile("outfile.txt");

ifstream infile("infile.txt");

if(!outfile) {

cerr << "can not create outfile."<<endl;

retval = -1;

}

if(!infile) {

cerr << "can not create infile."<<endl;

retval = -1;

}

while (infile >> word) {

outfile << word << ' ';

}

system("PAUSE");

return retval;

}