Question

I am trying to build a 2 dimensional array in C++ while I don’t know how many rows I will have. Here is some code:

In the header file:

class model
{
         ... ...

    float vertices[][3];

         ... ...
}

And in the .cpp file:

 istringstream iss(str);
 for (int i = 0; i <=2; i++)
     {
         iss >> vertices[counter][i];
     }

Is this a proper way to handle it? I got a segmentation fault, I just want to make sure it’s not caused by the way I use arrays. Also is there a better way to handle this, thanks.

Answer 1

You need to either use pointers, or use a dynamically resizable container such as std::vector when you don’t know the size.