C / C++ Code Portfolio

using namespace std;

// maximum line size

const int BUFFER = 512;

void MergeAndDisplay(ifstream files[], size_t count)
{
// declare a boolean indicating whether at least one file is still open to read lines from
bool atLeastOneFileOpen = true;
// declare a char array to store the text from one line
char temp[BUFFER];
// declare a boolean indicating whether a new line was the last text output
bool newLineWasLastOutput = true;
// while at least one file is open (i.e. while not all files are closed)
while (atLeastOneFileOpen)
{
// begin with the assumption that no files are open
// if it turns out a file is in fact open, this boolean will get set to true
atLeastOneFileOpen = false;
// for each file
for (int currentFile = 0; currentFile < (int)count; ++currentFile)
{
// if the file is open
if (files[currentFile].is_open())
{
// get the next line from the file
files[currentFile].getline(temp, sizeof(temp));
// if an EOF was not encountered in the file
if (!files[currentFile].eof())
{
// if the line that was read in from the file contains only a new line character
if (!strlen(temp))
{
// print out a new line character
cout << "\n";
// indicate that the last thing output was a newline
newLineWasLastOutput = true;
}
// if a new line was not the last thing output to the console
if (!newLineWasLastOutput)
{
// output a new line
cout << "\n";
}
// output the line from the file
cout << temp;
// indicate that the last thing output was not a newline
newLineWasLastOutput = false;
// indicate that at least one file is still open
atLeastOneFileOpen = true;
}
// if an EOF was encountered in the file