[vtk-developers] Use of nullptr

[Robert Maynard]

I should clarify the intent of this backdoor.

The backdoor is meant to allow people to compile VTK with C++11
enabled when using a compilers that CMake has no knowledge of. For
example CMake doesn't know how to enable C++11 on the PGI compiler
currently so you can use this backdoor/workaround to get VTK + PGI +
C++11 building. Using this workaround to disable C++11 support will
not be a valid use case going forward.

On Wed, Feb 1, 2017 at 11:40 AM, Bill Lorensen <bill.lorensen at gmail.com> wrote:
> There is. backdoor to disable c++11 on the current VTK build.
>
>
> On Wed, Feb 1, 2017 at 11:19 AM, Marcus D. Hanwell
> <marcus.hanwell at kitware.com> wrote:
>> To the best of my understanding this is the one feature we actually
>> test for and require of C++11 at this stage. I have a 2010 Macbook Pro
>> that I am able to compile this on, but it is on Sierra mist...
>>
>> On Wed, Feb 1, 2017 at 11:00 AM, Bill Lorensen <bill.lorensen at gmail.com> wrote:
>>> I run an old Mac release. I guess it's time to upgrade... Something to do
>>> while my new hip heals.
>>>
>>> On Feb 1, 2017 10:53 AM, "Marcus D. Hanwell" <marcus.hanwell at kitware.com>
>>> wrote:
>>>>
>>>> On Wed, Feb 1, 2017 at 8:59 AM, Bill Lorensen <bill.lorensen at gmail.com>
>>>> wrote:
>>>> > Recent changes to files in GUISupprt/Qt use nullptr, which is a c++11
>>>> > construct. I know we are moving to c++11, but for the time being it
>>>> > seems that nullptr could be replaced will NULL in these two files
>>>> > without any impact.
>>>> >
>>>> I was under the impression we had already moved to C++11, and it
>>>> seemed like a reasonable thing to use. I can replace it with NULL if
>>>> that is preferred, sorry if I jumped the gun on moving forward with
>>>> this.
>>>>
>>>> What is the reasoning not to use it though, our CMake files require
>>>> C++11 and this was one of the first things added to compilers from
>>>> C++11 when it was 0x.
>>>>
>>>> Thanks,
>>>>
>>>> Marcus
>
>
>
> --
> Unpaid intern in BillsBasement at noware dot com
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