Re: [boost] [mpl][tru64cxx] set failing

From: Markus Schöpflin (markus.schoepflin_at_[hidden])
Date: 2005-06-20 03:12:09

Ralf W. Grosse-Kunstleve wrote:

> I am not sure this is related, but something bad happened recently. We the CVS
> from a few minutes ago I get:
> 
> % cxx -std strict_ansi -msg_display_number -msg_disable 186,450,1115 -tlocal
> -DBOOST_DISABLE_THREADS -DNDEBUG -O2 -fast -DBOOST_PYTHON_MAX_BASES=2
> -DBOOST_PYTHON_SOURCE -I/net/legless/scratch1/rwgk/hot/boost
> -I/usr/local_cci/Python-2.4.1_ticker_simple/include/python2.4 -c -o
> boost/libs/python/src/converter/builtin_converters.os
> /net/legless/scratch1/rwgk/hot/boost/libs/python/src/converter/builtin_converters.cpp
> cxx: Error: /net/legless/scratch1/rwgk/hot/boost/boost/cast.hpp, line 347: #94 
>           the size of an array must be greater than zero
>           detected during instantiation of "Target
>                     boost::numeric_cast<Target,Source>(Source) [with
>                     Target=unsigned long long, Source=long]" at line 204 of
>                     "/net/legless/scratch1/rwgk/hot/boost/libs/python/src/conve
>                     rter/builtin_converters.cpp"
>         typedef bool result_must_be_numeric[result_traits::is_specialized];
> --------------------------------------------^
> cxx: Info: 1 error detected in the compilation of
> "/net/legless/scratch1/rwgk/hot/boost/libs/python/src/converter/builtin_converters.cpp".

<snip>

I'm afraid this has been broken by me with a fix to 
boost/config/stdlib/roguewave.hpp. When compiling in strict ansi mode, the 
RW library disables support for long long types. Therefore I added the 
following lines to the RW config file:

---%<---
//
// Disable BOOST_HAS_LONG_LONG when the library has no support for it.
//
#if !defined(_RWSTD_LONG_LONG) && defined(BOOST_HAS_LONG_LONG)
#  undef BOOST_HAS_LONG_LONG
#endif
--->%---

The failure is caused by boost.python not checking BOOST_HAS_LONG_LONG. It 
uses its own macro magic for this which relies on the value supplied by the 
python config file.

Changing the tests in builtin_converters.cpp to use BOOST_HAS_LONG_LONG 
instead of HAVE_LONG_LONG makes the file compile for me, but there is a 
comment regarding this test which indicates that the choice was made 
deliberately not to use BOOST_HAS_LONG_LONG.

I'm not sure on how to properly solve this, any ideas?

Markus

The compiler itself actually still accepts long long, but it gives a 
warning for every usage of the type.

cxx: Warning: test_long_long.cpp, line 3: the type "long long" is nonstandard
   unsigned long long u = 0LL;
----------------^
cxx: Warning: test_long_long.cpp, line 3: the type "long long" is nonstandard
   unsigned long long u = 0LL;
-------------------------^

And so on and so on...