Re: 3.1.52 fails to build in hppa/linux

[Jaroslav Hajek]

On Sun, Feb 22, 2009 at 9:22 PM, Marco Atzeri <address@hidden> wrote:
>
> --- Dom 22/2/09, Jaroslav Hajek  ha scritto:
>
>> Da: Jaroslav Hajek
>> Oggetto: Re: 3.1.52 fails to build in hppa/linux
>> A: address@hidden
>> Cc: address@hidden
>> Data: Domenica 22 febbraio 2009, 21:14
>> On Sun, Feb 22, 2009 at 8:32 PM, Marco Atzeri
>>  wrote:
>> >
>> > --- Dom 22/2/09, Jaroslav Hajek  ha scritto:
>> >
> [CUT]
>
>> >>
>> >> Rafael,
>> >>
>> >> can you try compiling (no need to link) the
>> following test
>> >> code? It
>> >> should be a simple instance of the same issue.
>> >>
>> >> class A {};
>> >>
>> >> template <class X, class T> void method
>> (double u, T
>> >> v);
>> >>
>> >> template <class X> void method (double u,
>> long v);
>> >>
>> >> int main ()
>> >> {
>> >>   double u; long v;
>> >>   method<A> (u, v);
>> >> }
>> >>
>> >> If you get a failure, then you have a buggy gcc.
>> >>
>> >> --
>> >> RNDr. Jaroslav Hajek
>> >
>> > Hi Jaroslav,
>> > your test compile fine on cygwin with gcc-4.4.3.
>> >
>> > I suspect it is more an issue around int64_t and
>> uint64_t
>> > as all the errors go in couple:
>> >
>> > ../../octave_local/liboctave/oct-inttypes.cc:514:
>> error: ambiguous template specialization
>> 'mop<octave_int_cmp_op::ge>' for 'bool
>> octave_int_cmp_op::mop(int64_t, double)'
>> > ../../octave_local/liboctave/oct-inttypes.cc:514:
>> error: ambiguous template specialization
>> 'mop<octave_int_cmp_op::ge>' for 'bool
>> octave_int_cmp_op::mop(uint64_t, double)'
>> >
>> > Regards
>> > Marco
>> >
>>
>> I see; it's probably a different issue, then. I suspect
>> it only
>> happens on those architectures where long double is equal
>> to double,
>> right? I'll try to investigate this.
>>
>> --
>> RNDr. Jaroslav Hajek
>
> Hi Jaroslav
> on cygwin double and long double are not equal.
>
> sizeof(int) == 4
> sizeof(long) == 4
> sizeof(long long) == 8
> sizeof(long long int) == 8
> sizeof(unsigned long long int) == 8
> sizeof(double) == 8
> sizeof(long double) == 12
> sizeof(int8_t) == 1
> sizeof(int16_t) == 2
> sizeof(int32_t) == 4
> sizeof(int64_t) == 8
> sizeof(uint8_t) == 1
> sizeof(uint16_t) == 2
> sizeof(uint32_t) == 4
> sizeof(uint64_t) == 8
>
> Regards
> Marco
>
>
>

And is OCTAVE_INT_USE_LONG_DOUBLE defined in config.h? Do you get the
same error as Rafael? You see, lines 511 and 514 in oct-inttypes.cc
are inside an #ifdef OCTAVE_INT_USE_LONG_DOUBLE block.



-- 
RNDr. Jaroslav Hajek
computing expert
Aeronautical Research and Test Institute (VZLU)
Prague, Czech Republic
url: www.highegg.matfyz.cz