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Added test_adl_barrier to swap/test, as discussed with Joseph Gauterin.

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[SVN r47808]
This commit is contained in:
Niels Dekker
2008-07-25 18:48:09 +00:00
parent 899c92420c
commit b311fcefb2
2 changed files with 38 additions and 3 deletions
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5
swap/test/Jamfile.v2
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@@ -20,7 +20,6 @@ test-suite utility/swap
[ run specialized_in_global.cpp ../../../test/build//boost_test_exec_monitor/<link>static ]
[ run specialized_in_other.cpp ../../../test/build//boost_test_exec_monitor/<link>static ]
[ run specialized_in_std.cpp ../../../test/build//boost_test_exec_monitor/<link>static ]
[ run swap_arrays.cpp ../../../test/build//boost_test_exec_monitor/<link>static ]
[ run test_adl_barrier.cpp ../../../test/build//boost_test_exec_monitor/<link>static ]
[ run swap_arrays.cpp ../../../test/build//boost_test_exec_monitor/<link>static ]
;

36
swap/test/test_adl_barrier.cpp Normal file
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@@ -0,0 +1,36 @@
// Copyright (c) 2008 Joseph Gauterin, Niels Dekker
//
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
// boost::swap internally does an unqualified function call to swap.
// This could have led to ambiguity or infinite recursion, when the
// objects to be swapped would themselves be from the boost namespace.
// If so, boost::swap itself might be found by argument dependent lookup
// (ADL). The implementation of boost::swap resolves this issue by
// using a barrier namespace. The following test checks this "ADL barrier".
#include <boost/utility/swap.hpp>
#define BOOST_INCLUDE_MAIN
#include <boost/test/test_tools.hpp>
//Put test class in namespace boost
namespace boost
{
#include "./swap_test_class.hpp"
}
int test_main(int, char*[])
{
boost::swap_test_class object1;
boost::swap_test_class object2;
boost::swap(object1,object2);
BOOST_CHECK_EQUAL(boost::swap_test_class::swap_count(),0);
BOOST_CHECK_EQUAL(boost::swap_test_class::copy_count(),3);
return 0;
}