[Qt-interest] Detecting size of datatype with qmake

[Nikos Chantziaras]

On 05/16/2010 10:36 AM, Robert Hairgrove wrote:
> Nikos Chantziaras wrote:
>> On 05/16/2010 10:00 AM, Esben Mose Hansen wrote:
>>> On Sunday 16 May 2010 04:47:32 Nikos Chantziaras wrote:
>>>> Is there a way I could detect the size of datatypes like 'short' and
>>>> 'int' with qmake from within the project file? I am working with a
>>>> header file that needs macros like SIZEOF_SHORT and SIZEOF_INT defined.
>>>
>>> Why not simply use
>>>
>>> #define SIZEOF_SHORT sizeof(short)
>>> #define SIZEOF_INT sizeof(int)
>>
>> Because those macros are used like this:
>>
>> #if SIZEOF_INT == 4
>> typedef int hix_int32;
>> // ...
>>
>> and the rest of the code uses hix_int32.
>
> Qt has those types built in, i.e.: qint16, qint32 and qint64 along with
> their unsigned varieties (and many more). Look in the Qt docs and search
> for one of these types which are defined in QGlobal.h.

Thanks for the pointer!  I can typedef those instead.