Question

I made a class and split it into a source and header file, but I can’t get them to talk to each other.

My header file, GridLayout.h that looks something like this:

#ifndef GRIDLAYOUT_H_INCLUDED
#define GRIDLAYOUT_H_INCLUDED

#include <vector>
#include <types.h>
#include "GridPlaceable.h"

namespace Spaceships {

class GridLayout {
    //consider replace with std::list
    typedef std::vector<GridPlaceable*> column;

    public:
        GridLayout();
        ~GridLayout();

        void arrange();
        void splitColumn(size_t colNo, distance position);
        void splitRow(size_t rowNo, distance position);
        bool placeOne(GridPlaceable* thatOne);

private:
        bool tryToFit(GridPlaceable* thatOne, size_t startCol, size_t startCell);

        std::vector<column> wholeGrid;
        std::vector<GridPlaceable*> toPlace;

        std::vector<distance> rowHeights, colWidths;
        std::vector<size_t> firstEmpties;

        bool mandates;
};

};

GridLayout.cpp looks like:

#include "GridLayout.h"

namespace Spaceships {

GridLayout::GridLayout() {

}

//GridLayout::aBunchOfOtherFunctions() { }

}

#endif

When I compile, I get a whole slew of GridLayout does not name a type errors. What could be causing this? I seem to remember solving a similar problem once by throwing in a bunch of semicolons, but that doesn’t seem to be working this time.

Answer 1

Figured it out! I’ll put this here in case it helps somebody.

I must have set GridLayout.h to be compiled at some point, then changed it back, because there was a GridLayout.gch lying around in the directory. So the compiler must have gone straight for that and ignored the .h altogether. I deleted that file and now it shows me all the real errors in my code.