package mem import "errors" var ( ErrMemOverflow = errors.New("memory overflow, cannot allocate more than 10000 memory cells") ErrFatalNonFreeCell = errors.New("non-free cell marked as free") ) type ErrInvalidMemAccess struct { Ptr Ptr } func (e ErrInvalidMemAccess) Error() string { return "invalid memory access at " + e.Ptr.String() }