On 3/31/2015 9:36 AM, Mário Luzeiro wrote:
> Hi Wayne,
>
> I usually find in other c++ projects something like this:
>
> template <typename T> inline void SAFE_DELETE(T& p)
> { delete p; (p) = NULL; }
> Random example:
> https://github.com/envi/imagepitcher/blob/master/imagepitcher/macro.h
wxWidgets provides this in wxDELETE defined in wx/defs.h. Yes, there
are many undocumented features in wxWidgets. Do not assume that if it's
not in the wxWidgets documentation that it doesn't exist.
>
> http://www.cplusplus.com/reference/new/operator%20delete[]/
> "If this is a null-pointer, the function does nothing."
>
> So since there is no problem to delete a null pointer. this template only
> assures that the pointer is setting it to null.
>
>
> Other question:
> How can we debug memory leaks in KiCad? I never did it before in any other
> place, is there any way in KiCad project?
>
> Mario Luzeiro
>
> ________________________________________
> From: Kicad-developers
> [[email protected]] on behalf of
> Wayne Stambaugh [[email protected]]
> Sent: 31 March 2015 15:11
> To: [email protected]
> Subject: Re: [Kicad-developers] Bug fixing and Coverity scan errors.
>
>> That should be desirable to set it to NULL.
>> I am not a C++ expert but, are we missing a "safe delete" thing to use in
>> KiCad?
>
> What do you mean by "safe" delete? It's always the responsibility of
> the programmer to know when it's safe to delete an object created on the
> heap. C++ cannot know when it's safe to delete an object. If you mean
> automatic heap deletion, you can use the C++ auto_ptr or Boost smart_ptr
> templates. Using them requires some understanding. Otherwise, they can
> be just as unsafe as delete.
>
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