[boost] type_traits: recent changes break EDG compilations

From: Ralf W. Grosse-Kunstleve (rwgk_at_[hidden])
Date: 2005-03-28 08:37:02

The current Boost CVS does not work for compiling Boost.Python with the
EDG front-end versions 238, 245, and 303 (and possibly any other EDG). E.g.
using icc 8.1:

icc -fPIC -DBOOST_DISABLE_THREADS -DNDEBUG -O2 -DBOOST_PYTHON_MAX_BASES=2
-I/net/legless/scratch1/rwgk/hot/boost
-I/usr/local_cci/Python-2.4_ticker/include/python2.4 -c -o
boost/libs/python/test/args.os
/net/legless/scratch1/rwgk/hot/boost/libs/python/test/args.cpp
/net/legless/scratch1/rwgk/hot/boost/boost/python/detail/invoke.hpp(75): error:
expression must have (pointer-to-) function type
      return rc(f( BOOST_PP_ENUM_BINARY_PARAMS_Z(1, N, ac, ()
BOOST_PP_INTERCEPT) ));
                ^
          detected during:

The full error messages are here:

  http://cci.lbl.gov/~rwgk/tmp/edg238_problem_2005_03_27_1250
  http://cci.lbl.gov/~rwgk/tmp/edg245_problem_2005_03_27_1250
  http://cci.lbl.gov/~rwgk/tmp/edg303_problem_2005_03_27_1250

I've tracked down the failures to this CVS commit:

  date: 2005/03/23 11:22:25;  author: johnmaddock;
  Modified function testing to make it configuration-friendly, future
  changes should require no more than a config macro change.

If I check out the CVS HEAD, but run this command

  % cvs -q update -P -D'2005/03/23 11:00 UTC'
  U config.hpp
  U is_convertible.hpp
  U is_function.hpp
  U is_member_function_pointer.hpp
  U type_traits_test.hpp
  U detail/is_function_ptr_helper.hpp
  U detail/is_function_ptr_tester.hpp
  U detail/is_mem_fun_pointer_impl.hpp
  U detail/is_mem_fun_pointer_tester.hpp

in boost/boost/type_traits, compilation succeeds again.
The full diffs are here:

  http://cci.lbl.gov/~rwgk/tmp/edg_problem_2005_03_27_1250_type_traits_diffs

I noticed that is_convertible.hpp was modified at a later time
(2005/03/24 18:18:36), but this change does not make a difference for
the EDG failures.

Thanks in advance for any help!

Cheers,
        Ralf

                
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