[vtk-developers] [EXTERNAL] Re: vtksys_ios:: versus std::

[Jean-Christophe Fillion-Robin]

FYI - Slicer4 code based has been updated. See
https://github.com/Slicer/Slicer/commit/454ec1b
Jc

On Mon, Feb 6, 2012 at 9:36 PM, David Thompson <dcthomp at sandia.gov> wrote:

> On Feb 6, 2012, at 14:00 , Brad King wrote:
>
>> On 2/6/2012 4:55 PM, Bill Lorensen wrote:
>>
>>> We replaced vtkstd:: with std::
>>> As part of the modernization of VTK, should we replace vtksys_ios:: with
>>> std:: ?
>>>
>> That sounds like a good idea if it is possible.
>>
>
> I agree; thanks for bringing this up, Bill.
>
>
>  Many of the uses of vtksys_ios:: are to refer to ostringstream.
>> KWSys provides a compatibility implementation to simulate modern
>> stringstream classes on compilers that have only the old strstream.
>> I do not know if we have dropped support for all such compilers.
>>
>
> As far as GCC goes, stringstream got moved into std in gcc-3.2. I believe
> gcc-2.9x support got cut at the same time as MSVC6, 7, & 7.1.
>
> I'm less sure about when the format specifiers (e.g., std::ios::hex) and
> stream status values (e.g., std::ios::badbit) moved into std (or whether
> they always were there, in addition to being declared in std::ios_base or
> std::ios).
>
> It would be nice if we had a list of compilers that are currently
> supported so we could verify how stringstream behaves on each. However,
> I've looked and don't see a list for VTK anywhere. Other than the
> collection of nightly builds for CDash (which doesn't really document
> compiler versions so much as platforms), is there a list? The closest I can
> find is
>
>  http://www.vtk.org/Wiki/VTK/**ARB/Meetings/November_2009<http://www.vtk.org/Wiki/VTK/ARB/Meetings/November_2009>
>  http://www.vtk.org/Wiki/VTK/**ARB/Meetings/January_2010<http://www.vtk.org/Wiki/VTK/ARB/Meetings/January_2010>
>
> which says there *will* be a list, but here
>
>  http://www.vtk.org/pipermail/**vtk-developers/2010-August/**008447.html<http://www.vtk.org/pipermail/vtk-developers/2010-August/008447.html>
>
> is the only place I've seen a list and that appears to be before VC6
> support was dropped.
>
>        David
>
>
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