C++: expected identifier before numeric constant

Question

I\'m trying to write a small program using MTL, but I\'m getting the mentioned error when I try to make a MTL Matrix a member of a class.

#include 

        

Answer 1

Because when you declare

mtl::dense2D Ke;

you're only supposed to declare it, not create it yet. This is the constructor's job in C++:

class myClass
{
public:
    myClass() // constructor
        : Ke(6, 6) // here we use the constructor initializer
    {
    }
private:
    mtl::dense2D Ke; // declaration
};