Q2sol the solution
From CDOT Wiki
void Process(fstream& fs,int recsize){
/*allocate memory so we can have a place to put data*/
char* rec=new char[recsize];
int numrec;
/*find out how many records are in our file*/
fs.seekg(0,ios::end);
numrec=fs.tellg()/recsize;
for(int i=0;i<numrec;i++){
fs.seekg(i*recsize,ios::beg);
fs.read((char*)rec,recsize);
rec[recsize-2]=10; //10 is LF recsize -2 is where the CR was
//make sure we are in correct place when we do our writes.
fs.seekp(i*(recsize-1),ios::beg);
fs.write((char*)rec,recsize-1);
}
delete [] rec; //don't want memory leak so make sure mem is deallocated.
}