Reading in a CSV file for integers - c++

Question

I have a test file set up here trying to read in a CSV file
ifstream file;
file.open("New Microsoft Excel Worksheet.csv");
string temp;
string arr[15];
int size = 0;
int index = 0;
while (getline(file, temp, ','))
{
if (!temp.empty())
{
arr[index] = temp;
std::cout << arr[index];
size++;
index++;
}
}
Output
34568
29774
18421
it successfully captures each index, and even lines them out in a row (I'm guessing its also capturing a \n?)
however I need them to be integers, I would do this in the same loop with a stoi() function, but I need the size of the array to be dynamic (I don't want to use vectors here because this is fitting into another part of code that needs an array)
Here is how I turn them into integers and put them in a new array
int *intArr = new int[size];
for (index = 0; index < size; index++)
{
intArr[index] = stoi(arr[index]);
std::cout << intArr[index];
}
and here is the output for this
3456897748421
It seems to miss each number after it switches to the next row in the csv
If I structure it properly, heres whats going on
34568
9774
8421
I'm guessing this has something to do with CSV files giving a \n at the end of a row in an excel file.
How do I fix this? I need all the values to be integers, thanks!

Answer 1

I figured it out, you need two while loops like this:
while (getline(file, temp))
{
istringstream ss(temp);
while (getline(ss, data, ','))
{
arr[index] = data;
std::cout << arr[index];
size++;
index++;
}
}
I'm not exactly sure why you need two, because this seems kind of redundant, but getting the line THEN putting it in a string stream seems to get rid of that new line
Thanks to #brc-dd for the help!