Hello Paul,
I checked the values of macros you have asked:
__GNUC__, __SUNPRO_C, __STDC__, __xlC_ver__ are all undefined. The rest
ones are defined and the values are same for 32- and 64-bit compilation:
__IBM__TYPEOF__=1
__IBMC__=600
__xlC__=1536
Compiler version is much older than yours:
cc_r -qversion
C for AIX version 6.0.0.0
xlc -qversion
C for AIX version 6.0.0.0
So, __IBM__TYPEOF__ macro is defined and the resulting complex macro from
ftconfig.h is resolved to #define FT_TYPEOF( type ) (__typeof__ (type)),
but __typeof__ itself does not work as I wrote in the original message. I
suppose that if you use xlc 6.0.0.0 you should reproduce the problem as
well.
--
Best Regards,
Alexander.
2016-10-31 16:03 GMT+01:00 Paul Eggert <egg...@cs.ucla.edu>:
> On 10/28/2016 08:13 AM, TestRealTime . wrote:
>
> long Func(int x) { return x; }
>> int main()
>> {
>> int y, z = 1;
>> y = (__typeof__(Func((__typeof__(z))z)))0;
>> return 0;
>> }
>>
>
> I don't observe any problem when compiling with this xlc:
>
> $ xlc -qversion
> IBM XL C/C++ for AIX, V12.1 (5765-J02, 5725-C72)
> Version: 12.01.0000.0000
>
> gnulib/lib/intprops.h says __typeof__ should work with xlc if the
> __IBM__TYPEOF__ macro is defined. Is that macro defined for you? If not,
> then why is FT_TYPEOF misfiring for you? And if so, what are the values of
> the following macros? You can use the compiler's -E option to determine
> this.
>
> __IBMC__
>
> __xlC__
>
> __xlC_ver__
>
> Also, what does your compiler's manual (for your compiler's version) say
> about this?
>
>
