0e4c5127f5
to be able to call mutable object
141 lines
4.0 KiB
C++
141 lines
4.0 KiB
C++
/*=============================================================================
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Copyright (c) 2001-2011 Joel de Guzman
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Copyright (c) 2011 Eric Niebler
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Copyright (c) 2018 Kohei Takahashi
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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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==============================================================================*/
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#include <boost/core/lightweight_test.hpp>
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#include <boost/fusion/container/vector/vector.hpp>
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#include <boost/fusion/container/generation/make_vector.hpp>
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#include <boost/fusion/algorithm/iteration/for_each.hpp>
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#include <boost/fusion/sequence/comparison/equal_to.hpp>
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#include <boost/fusion/sequence/io/out.hpp>
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#include "../sequence/tree.hpp"
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struct print
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{
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template <typename T>
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void operator()(T const& v) const
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{
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std::cout << "[ " << v << " ] ";
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}
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};
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struct increment
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{
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template <typename T>
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void operator()(T& v) const
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{
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++v;
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}
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};
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struct mutable_increment : increment
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{
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template <typename T>
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void operator()(T& v)
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{
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return increment::operator()(v);
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}
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};
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template <typename F, typename Tree>
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void test(Tree tree, Tree const& expected)
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{
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boost::fusion::for_each(tree, F());
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BOOST_TEST_EQ(tree, expected);
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}
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int
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main()
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{
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using namespace boost::fusion;
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{
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for_each(
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make_tree(
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make_vector(double(0),'B')
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, make_tree(
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make_vector(1,2,long(3))
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, make_tree(make_vector('a','b','c'))
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, make_tree(make_vector(short('d'),'e','f'))
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)
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, make_tree(
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make_vector(4,5,6)
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, make_tree(make_vector(float(1),'h','i'))
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, make_tree(make_vector('j','k','l'))
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)
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)
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, print()
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);
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std::cout << std::endl;
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}
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{
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test<increment>(
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make_tree(
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make_vector(double(0),'B')
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, make_tree(
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make_vector(1,2,long(3))
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, make_tree(make_vector('a','b','c'))
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, make_tree(make_vector(short('d'),'e','f'))
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)
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, make_tree(
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make_vector(4,5,6)
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, make_tree(make_vector(float(1),'h','i'))
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, make_tree(make_vector('j','k','l'))
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)
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)
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, make_tree(
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make_vector(double(1),'C')
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, make_tree(
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make_vector(2,3,long(4))
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, make_tree(make_vector('b','c','d'))
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, make_tree(make_vector(short('e'),'f','g'))
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)
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, make_tree(
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make_vector(5,6,7)
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, make_tree(make_vector(float(2),'i','j'))
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, make_tree(make_vector('k','l','m'))
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)
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)
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);
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}
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{
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test<mutable_increment>(
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make_tree(
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make_vector(double(0),'B')
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, make_tree(
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make_vector(1,2,long(3))
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, make_tree(make_vector('a','b','c'))
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, make_tree(make_vector(short('d'),'e','f'))
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)
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, make_tree(
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make_vector(4,5,6)
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, make_tree(make_vector(float(1),'h','i'))
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, make_tree(make_vector('j','k','l'))
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)
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)
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, make_tree(
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make_vector(double(1),'C')
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, make_tree(
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make_vector(2,3,long(4))
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, make_tree(make_vector('b','c','d'))
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, make_tree(make_vector(short('e'),'f','g'))
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)
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, make_tree(
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make_vector(5,6,7)
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, make_tree(make_vector(float(2),'i','j'))
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, make_tree(make_vector('k','l','m'))
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)
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)
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);
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}
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return boost::report_errors();
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}
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