Re: [boost] HP-UX aCC or boost problem?

From: Boris Gubenko (Boris.Gubenko_at_[hidden])
Date: 2006-03-13 21:12:58

Ralf,

I can reproduce the problem compiling your program example against
boost CVS HEAD. I also confirmed, that the program compiles cleanly
with cxx V6.5-042 on Tru64 and with Intel's ICC 9.0 on Linux.

>
> Could this be fixed with a few extra #ifdefs?
>

I'll take a look tomorrow.

>
> BTW: Is the aCC compiler somehow related to the Tru64 compiler?
>

They both use the EDG front end.

Thanks,
  Boris

----- Original Message ----- 
From: "Ralf W. Grosse-Kunstleve" <rwgk_at_[hidden]>
To: <boost_at_[hidden]>
Sent: Monday, March 13, 2006 3:51 PM
Subject: Re: [boost] HP-UX aCC or boost problem?

> --- Boris Gubenko <Boris.Gubenko_at_[hidden]> wrote:
>
>> The compiler is correct. Instead of quoting C++ Standard, I'll quote
>> Lippman C++ Primer, 3rd edition, p.113:
>>
>>   An object of an enumeration type can be be initialized and
>>   assigned only with another object of the same enumeration
>>   type or with one of its set of enumerators. For example,
>>   although 3 is a legal value associated with Points, it cannot
>>   be explicitly assigned to a Points object:
>> [...]
>>   enum Points { point2d = 2, point2w, point3d = 3, point3w };
>>   // error: pt2w initialized with int
>>   Points pt2w = 3;
>
> Thanks!
>
>> Btw, you'd get the same compilation error with any EDG-based
>> compiler. On Tru64, for example:
>
> Indeed. I have the same compiler. I should have checked before.
>
> Obviously I've reduced the problem a bit too much.
>
> Boost.Python (with the very same boost version from CVS) compiles fine 
> with the
> Tru64 cxx compiler, but aCC gives this error (fragment of output):
>
> aCC -o boost/libs/python/src/converter/builtin_converters.o -c -AA +W2837
> -DBOOST_DISABLE_THREADS -DNDEBUG -O -DBOOST_PYTHON_MAX_BASES=2
> -DBOOST_PYTHON_SOURCE -I/home1/tmaier/dist/boost -Ipython/include/python2.4
> -I/home1/tmaier/dist/python/include/python2.4
> boost/libs/python/src/converter/builtin_converters.cpp
> ...
> "boost/boost/mpl/aux_/integral_wrapper.hpp", line 45: error #2144: a value 
> of
> type "long" cannot be used to initialize an entity of type "const
> boost::numeric::udt_builtin_mixture_enum"
>      BOOST_STATIC_CONSTANT(AUX_WRAPPER_VALUE_TYPE, value = N);
>      ^
>          detected during:
>            instantiation of class "mpl_::integral_c<T, N> [with
> T=boost::numeric::udt_builtin_mixture_enum, N=0L]" at line 30 of
> "boost/boost/numeric/conversion/detail/meta.hpp"
> The full output is here:
>
>  http://cci.lbl.gov/~rwgk/tmp/hp_ux_aCC_error_2006_03_13_1225
>
>
> The problem can be reduced like this:
>
> #include <boost/numeric/conversion/cast.hpp>
>
> unsigned long long
> foo()
> {
>  return boost::numeric_cast<unsigned long long, long>(0L);
> }
>
>
> This compiles with Tru64 cxx:
>
> % cxx -std strict_ansi -c -I$dist/boost numeric_cast.cpp
> cxx: Warning: numeric_cast.cpp, line 3: the type "long long" is 
> nonstandard
> unsigned long long
> --------------^
> cxx: Warning: numeric_cast.cpp, line 6: the type "long long" is 
> nonstandard
>  return boost::numeric_cast<unsigned long long, long>(0L);
> -------------------------------------------^
>
>
> But not with aCC:
>
>  http://cci.lbl.gov/~rwgk/tmp/hp_ux_aCC_error_2006_03_13_1248
>
> Could this be fixed with a few extra #ifdefs?
>
> Cheers,
>        Ralf
>
> BTW: Is the aCC compiler somehow related to the Tru64 compiler?
>
>
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