Re: [boost] [swap] How to fix ADL barrier for XL, Intel, GCC, Sun and Como?

From: Niels Dekker - mail address until 2008-12-31 (nd_mail_address_valid_until_2008-12-31_at_[hidden])
Date: 2008-07-29 11:42:40

>> Last Friday I added "test_adl_barrier" to test this ADL barrier.
>> Unfortunately it fails on many compilers, including XL (AIX),
>> Intel (version 9 and 10), GCC, Sun and Como:
>> http://www.boost.org/development/tests/trunk/developer/utility-swap_.html

David Abrahams wrote:
> Try replacing the using declaration with a using directive in swap.hpp
> Appears to work for GCC.

Thanks, Dave. Unfortunately for MSVC, most of the tests would be broken, 
when doing so!  So I guess we would need to do an #if BOOST_WORKAROUND 
within swap.hpp, e.g., as follows:

  #if BOOST_WORKAROUND( BOOST_MSVC, BOOST_TESTED_AT(1500) )
    using swap_adl_barrier::swap;
  #else
    using namespace swap_adl_barrier;
  #endif

Right? I only tested it on MSVC, because I don't have direct access to 
an up-to-date GCC compiler at the moment.  Shall I just commit it and 
see how the regression goes?

Kind regards, Niels