Having trouble with a readin. Can't read in a matrix into vector of vector of int.

[jedipenguin]

This is an assignment but this isn't a C++ class. It's more an operating systems class.

Also, I've never heard of istringstream before. I was able to read in one line as I said, but it can't figure out a line break. That was my problem.

How to get it to make sure that in

1 2 3 4
5 6 7 8
9 10 11 12

that it puts

1 2 3 4 in the first vector
5 6 7 8 in the another vector
9 10 11 12 in yet another vector

and not putting

1-12 in the same vector.

Or worse yet, not putting anything in the vectors at all.