Remove trailing comma in C++

Question

How can I remove a trailing comma from the end of the line, output from an array?

for ( k = numEntries - 1; k >= i; k--)
    myArray[k] = myArray[k - 1];
myArray[i] = newValue;

for (i = 0; i < numEntries; i++) {
    cout << myArray[i];
    cout << ",";
}

Answer 1

For starters this loop

for ( k = numEntries - 1; k >= i; k--)
                          ^^^^^^
    myArray[k] = myArray[k - 1];

is incorrect. It is evident (due to this statement myArray[i] = newValue;) that you mean

for ( k = numEntries - 1; k > i; k--)
                          ^^^^^
    myArray[k] = myArray[k - 1];

As for your question then the second loop can look like

for (i = 0; i < numEntries; i++) {
    if ( i != 0 ) cout << ",";
    cout << myArray[i];
}