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bb1f3d690a
Have a separate config stage, which by default disables forward declaration of containers. Also add a test to check that if it is disabled correctly. Removed forward declaration of std::pair - since it's almost always included by `<utility>`. [SVN r72990]
44 lines
1.2 KiB
C++
44 lines
1.2 KiB
C++
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// Copyright 2011 Daniel James.
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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// This tests if container forwarding is correctly disabled. If it isn't
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// disabled it causes a compile error (which causes the test to pass).
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// If it is disabled it tries container forwarding. If it doesn't work
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// then there will be a compile error, indicating that it is correctly
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// disabled. But if there isn't a compile error that indicates that
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// container forwarding might work.
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//
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// Since this test only tries std::vector, it might get it wrong but I didn't
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// want it to fail because of some incompatibility with a trickier class.
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#define BOOST_DETAIL_TEST_CONFIG_ONLY
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#include <boost/detail/container_fwd.hpp>
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#if !defined(BOOST_DETAIL_NO_CONTAINER_FWD)
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#error "Failing in order to pass test"
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#else
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#define BOOST_DETAIL_TEST_FORCE_CONTAINER_FWD
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#undef BOOST_DETAIL_CONTAINER_FWD_HPP
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#undef BOOST_DETAIL_TEST_CONFIG_ONLY
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#include <boost/detail/container_fwd.hpp>
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template <class T, class Allocator>
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void test(std::vector<T, Allocator> const&)
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{
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}
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#include <vector>
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int main ()
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{
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std::vector<int> x;
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test(x);
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}
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#endif
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