Re: [Openexr-devel] Compiler compatibility (MS C/C++ 13.x)

[Florian Kainz]

Aristarkh A Zagorodnikov wrote:
>                 Hello!
>
>         I would like to note, that using IlmImf with MS C/C++ 13.x (from
> MSVC 7.x) is not possible when language extensions are disabled (/Za
> compiler switch). The problem is in ImfInt64.h with declaration of
> Imf::Int64 type. The aforementioned compiler does not allow "long long"
> declarations as 64-bit integer declarations when /Za switch is in effect.
> The proposed solution is presented below:
>
> ImfInt64.h
> //      NOTE: begin of code changed by Aristarkh Zagorodnikov
> #if defined PLATFORM_WIN32 && _MSC_VER >= 1300
>         typedef unsigned __int64 Int64;
> #else
>     typedef long long unsigned int Int64;
> #endif
> //      NOTE: end of code changed by Aristarkh Zagorodnikov
> /*
>         NOTE: original code goes here
>
>     typedef long long unsigned int Int64;
> */
> #endif
>
>         P.S. Thanks to developers of The Library :) - it works great.
> Actually, I do not remember any library with such a seamless integration
> (compared with its size of course).
>
> Aristarkh A Zagorodnikov
> X-Infinity Software


Thank you for pointing this out.  Do you know if /Za will
disable "long long unsigned int" on compiler versions
other than 13.x?

Florian