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af65130fa1
Adjust for the fact that BOOST_PARAMETER_MAX_ARITY is defined regardless of whether or not BOOST_PARAMETER_HAS_PERFECT_FORWARDING is defined.
103 lines
2.6 KiB
C++
103 lines
2.6 KiB
C++
// Copyright David Abrahams, Daniel Wallin 2005.
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/parameter/config.hpp>
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#if (BOOST_PARAMETER_MAX_ARITY < 4)
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#error Define BOOST_PARAMETER_MAX_ARITY as 4 or greater.
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#endif
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#if !defined(BOOST_PARAMETER_HAS_PERFECT_FORWARDING) && \
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(BOOST_PARAMETER_EXPONENTIAL_OVERLOAD_THRESHOLD_ARITY < 5)
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#error Define BOOST_PARAMETER_EXPONENTIAL_OVERLOAD_THRESHOLD_ARITY \
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as 5 or greater.
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#endif
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#include <boost/parameter/name.hpp>
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namespace test {
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BOOST_PARAMETER_NAME(w)
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BOOST_PARAMETER_NAME(x)
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BOOST_PARAMETER_NAME(y)
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BOOST_PARAMETER_NAME(z)
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} // namespace test
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#include <boost/mpl/bool.hpp>
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#include <boost/mpl/if.hpp>
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#include <boost/type_traits/is_convertible.hpp>
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namespace test {
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struct f_predicate
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{
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template <typename T, typename Args>
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struct apply
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: boost::mpl::if_<
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boost::is_convertible<T,int>
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, boost::mpl::true_
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, boost::mpl::false_
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>
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{
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};
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};
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} // namespace test
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#include <boost/parameter/parameters.hpp>
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namespace test {
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struct f_parameters // vc6 is happier with inheritance than with a typedef
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: boost::parameter::parameters<
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boost::parameter::required<test::tag::w>
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, boost::parameter::optional<test::tag::x,test::f_predicate>
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, boost::parameter::optional<test::tag::y,test::f_predicate>
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, boost::parameter::optional<test::tag::z,test::f_predicate>
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>
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{
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};
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} // namespace test
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#include <boost/parameter/macros.hpp>
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#include <boost/core/lightweight_test.hpp>
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namespace test {
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#if defined(BOOST_NO_VOID_RETURNS)
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BOOST_PARAMETER_FUN(int, f, 1, 4, f_parameters)
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#else
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BOOST_PARAMETER_FUN(void, f, 1, 4, f_parameters)
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#endif
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{
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BOOST_TEST_EQ(p[test::_w][0], p[test::_x | -1]);
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BOOST_TEST_EQ(p[test::_w][1], p[test::_y | -2]);
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BOOST_TEST_EQ(p[test::_w][2], p[test::_z | -3]);
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#if defined(BOOST_NO_VOID_RETURNS)
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return 0;
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#endif
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}
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} // namespace test
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int main()
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{
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int a[3];
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a[0] = 1;
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a[1] = 2;
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a[2] = 3;
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test::f(test::_x = 1, test::_y = 2, test::_z = 3, test::_w = a);
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a[1] = -2;
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a[2] = -3;
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test::f(test::_x = 1, test::_w = a);
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a[0] = -1;
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a[1] = 2;
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test::f(test::_y = 2, test::_w = a);
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a[1] = -2;
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a[2] = 3;
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test::f(test::_z = 3, test::_w = a);
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a[0] = 1;
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test::f(test::_z = 3, test::_x = 1, test::_w = a);
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return boost::report_errors();
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}
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