Marc Brünink schrieb:
> Hi all,
>
> This Code does not work on Solaris 10 x86:
> #define MIN(a,b) \
> ({typeof(a) _MIN_a = (a); typeof(b) _MIN_b = (b); \
> _MIN_a < _MIN_b ? _MIN_a : _MIN_b; })
>
> But this one does:
> #define MIN(a,b) ( a < b ? a : b)
>
> So why the heck do we use all this typeof stuff?
To insure that a and b are not evaluated more than once when the macro
is expanded:
val = MIN(i++,--j); /* Or insert any method invokation that changes
state. */
Try using __typeof__ which I believe may be more portable.
Cheers,
David
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