Defining vector in header file

[Paul McKenzie]

Suppose I have the following sample header file test.h

You have so many things wrong.

#include "myCommon.h"

class Test
{
public:
  Test();

  vector<vector<vector<double>>> vI3(dim1, vector<vector<double>> (dim2, vector<double> (dim2, 0.0f)));

private:
  fillVector();
}

So how is the compiler supposed to know what "vector" is? You never state #include <vector> anywhere.

Second, this is not a declaration:

  vector<vector<vector<double>>> vI3(dim1, vector<vector<double>> (dim2, vector<double> (dim2, 0.0f)));

What is that code supposed to do when you place it in the class declaration? That line of code belongs in a function.

The bottom line is this:

When you create a header file, you're supposed to #include anything it needs to compile successfully without any "help" from outside. For example, this one line CPP file must compile without error:

#include "test.h"

Try to compile that one line of code. If it doesn't compile, you go into test.h and fix the errors.

Regards,

Paul McKenzie