[Insight-developers] Nonportable Code

Tom Vercauteren tom.vercauteren at m4x.org
Fri Aug 14 13:25:44 EDT 2009


Hi Sean,

Yes c++0x will have cstdint. It is already in boost.

In the meantime we might want to rely on pstdint.h (a portable stdint):
http://www.azillionmonkeys.com/qed/pstdint.h

See wikipedia for more information
http://en.wikipedia.org/wiki/Stdint.h

But it looks like a large change to do right before the release.

Tom

On Fri, Aug 14, 2009 at 19:21, Sean McBride<sean at rogue-research.com> wrote:
> On 8/14/09 6:56 PM, Gaëtan Lehmann said:
>
>>I've used that option, but I'm quite sure the types defined there are
>>wrong.
>>For example,
>>
>>   #ifdef _WIN32
>>     typedef long      ITK_INT64;
>>   #endif
>>
>>and
>>
>>   #ifdef _WIN32
>>     typedef unsigned long ITK_UINT64;
>>   #endif
>>
>>don't like right to me.
>
> Agreed.
>
>>Tom's way - vxl_int_64 - seems to be a better option.
>>
>>Should we fix the content of itkIntType.h by using vxl_int_64 types?
>>And do we even need itkIntType.h?
>
> This whole issue of fixed size types was solved and standardised with
> C99 (ISO/IEC 9899:1999), see:
> <http://en.wikipedia.org/wiki/Stdint.h>
>
> I know ITK is C++, not C.  Anyone know if the next C++ standard C++-0x
> will incorporate those types from C99?
>
> If so, seems to me we should use int32_t instead of creating an
> INT_INT32.  (I know some compilers do not have stdint.h, but we can
> create compatible typedefs in those cases.)
>
> --
> ____________________________________________________________
> Sean McBride, B. Eng                 sean at rogue-research.com
> Rogue Research                        www.rogue-research.com
> Mac Software Developer              Montréal, Québec, Canada
>
>
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