[Insight-developers] [slicer-devel] Improved readability of VTK derived class - What would you think of VTK_DISABLE_COPY macro ?

[Matt McCormick]

Hi Jc,

I like the idea -- it is more explicit, and it saves time.  What do members
of the ITK community think of an itkDisableCopy(MyClass) macro?

Thanks,
Matt


On Thu, Aug 15, 2013 at 6:11 PM, Jean-Christophe Fillion-Robin <
jchris.fillionr at kitware.com> wrote:

> Hi Folks,
>
> On the VTK developer list, I recently discussed the introduction of a new
> VTK macro named "VTK_DISABLE_COPY" [1][2] that would allow to easily
> disable assignment and copy constructor in VTK class deriving from
> vtkObject.
>
>
> Note that disabling these constructors for class deriving from vtkObject
> IS mandatory, it has to be done. You probably already copied this two
> constructor lines over and over ...
>
>
> This macro would be similar to what is done in Qt with Q_DISABLE_COPY. For
> details [3]
>
>
> For example, to declare the class MyClass, you would do ....
>
> // -----------------
> class MyClass : public vtkObject
> {
>
>   private:
>     VTK_DISABLE_COPY(MyClass)
> };
> // -----------------
>
>
>
> instead of
>
>
>
> // -----------------
> class MyClass : public vtkObject
> {
>
>   private:
>      MyClass(const MyClass &);
>      MyClass &operator=(const MyClass &);
> };
> // -----------------
>
>
>
> The more people reply to this email, the more chance we will have to see
> this macro added to VTK6.
>
>
> Let us know what you think.
>
>
> Thanks
> Jc
>
>
> [1]
> http://vtk.1045678.n5.nabble.com/Implicit-copy-constructors-in-VTK-tp5722193p5722205.html
>
> [2]
> http://vtk.1045678.n5.nabble.com/Implicit-copy-constructors-in-VTK-tp5722193p5722217.html
>
> [3] http://qt-project.org/doc/qt-5.0/qtcore/qobject.html#Q_DISABLE_COPY
>
> --
> +1 919 869 8849
>
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>
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