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317 lines
12 KiB
C++
317 lines
12 KiB
C++
// (C) Copyright Eric Niebler 2004-2005
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// (C) Copyright Gennadiy Rozental 2001.
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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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// See http://www.boost.org/libs/test for the library home page.
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//
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// File : $RCSfile$
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//
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// Version : $Revision$
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//
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// Description : this is an abridged version of an excelent BOOST_FOREACH facility
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// presented by Eric Niebler. I am so fond of it so I can't wait till it
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// going to be accepted into Boost. Also I need version with less number of dependencies
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// and more portable. This version doesn't support rvalues and will reeveluate it's
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// parameters, but should be good enough for my purposes.
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// ***************************************************************************
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#ifndef BOOST_TEST_UTILS_FOREACH_HPP
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#define BOOST_TEST_UTILS_FOREACH_HPP
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// Boost.Test
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#include <boost/test/detail/config.hpp>
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// Boost
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#include <boost/type.hpp>
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#include <boost/mpl/bool.hpp>
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#include <boost/test/detail/workaround.hpp>
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#include <boost/type_traits/is_const.hpp>
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#include <boost/test/detail/suppress_warnings.hpp>
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//____________________________________________________________________________//
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namespace boost {
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namespace unit_test {
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namespace for_each {
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// ************************************************************************** //
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// ************** static_any ************** //
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// ************************************************************************** //
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struct static_any_base
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{
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operator bool() const { return false; }
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};
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//____________________________________________________________________________//
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template<typename Iter>
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struct static_any : static_any_base
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{
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static_any( Iter const& t ) : m_it( t ) {}
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mutable Iter m_it;
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};
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//____________________________________________________________________________//
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typedef static_any_base const& static_any_t;
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//____________________________________________________________________________//
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template<typename Iter>
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inline Iter&
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static_any_cast( static_any_t a, Iter* = 0 )
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{
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return static_cast<Iter&>( static_cast<static_any<Iter> const&>( a ).m_it );
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}
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//____________________________________________________________________________//
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// ************************************************************************** //
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// ************** is_const ************** //
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// ************************************************************************** //
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template<typename C>
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inline is_const<C>
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is_const_coll( C& )
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{
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return is_const<C>();
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}
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//____________________________________________________________________________//
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// ************************************************************************** //
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// ************** begin ************** //
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// ************************************************************************** //
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template<typename C>
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inline static_any<BOOST_DEDUCED_TYPENAME C::iterator>
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begin( C& t, mpl::false_ )
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{
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return static_any<BOOST_DEDUCED_TYPENAME C::iterator>( t.begin() );
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}
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//____________________________________________________________________________//
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template<typename C>
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inline static_any<BOOST_DEDUCED_TYPENAME C::const_iterator>
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begin( C const& t, mpl::true_ )
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{
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return static_any<BOOST_DEDUCED_TYPENAME C::const_iterator>( t.begin() );
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}
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//____________________________________________________________________________//
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// ************************************************************************** //
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// ************** end ************** //
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// ************************************************************************** //
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template<typename C>
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inline static_any<BOOST_DEDUCED_TYPENAME C::iterator>
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end( C& t, mpl::false_ )
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{
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return static_any<BOOST_DEDUCED_TYPENAME C::iterator>( t.end() );
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}
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//____________________________________________________________________________//
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template<typename C>
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inline static_any<BOOST_DEDUCED_TYPENAME C::const_iterator>
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end( C const& t, mpl::true_ )
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{
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return static_any<BOOST_DEDUCED_TYPENAME C::const_iterator>( t.end() );
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}
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//____________________________________________________________________________//
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// ************************************************************************** //
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// ************** done ************** //
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// ************************************************************************** //
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template<typename C>
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inline bool
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done( static_any_t cur, static_any_t end, C&, mpl::false_ )
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{
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return static_any_cast<BOOST_DEDUCED_TYPENAME C::iterator>( cur ) ==
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static_any_cast<BOOST_DEDUCED_TYPENAME C::iterator>( end );
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}
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//____________________________________________________________________________//
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template<typename C>
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inline bool
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done( static_any_t cur, static_any_t end, C const&, mpl::true_ )
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{
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return static_any_cast<BOOST_DEDUCED_TYPENAME C::const_iterator>( cur ) ==
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static_any_cast<BOOST_DEDUCED_TYPENAME C::const_iterator>( end );
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}
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//____________________________________________________________________________//
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// ************************************************************************** //
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// ************** next ************** //
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// ************************************************************************** //
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template<typename C>
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inline void
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next( static_any_t cur, C&, mpl::false_ )
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{
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++static_any_cast<BOOST_DEDUCED_TYPENAME C::iterator>( cur );
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}
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//____________________________________________________________________________//
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template<typename C>
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inline void
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next( static_any_t cur, C const&, mpl::true_ )
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{
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++static_any_cast<BOOST_DEDUCED_TYPENAME C::const_iterator>( cur );
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}
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//____________________________________________________________________________//
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// ************************************************************************** //
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// ************** prev ************** //
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// ************************************************************************** //
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template<typename C>
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inline void
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prev( static_any_t cur, C&, mpl::false_ )
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{
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--static_any_cast<BOOST_DEDUCED_TYPENAME C::iterator>( cur );
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}
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//____________________________________________________________________________//
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template<typename C>
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inline void
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prev( static_any_t cur, C const&, mpl::true_ )
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{
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--static_any_cast<BOOST_DEDUCED_TYPENAME C::const_iterator>( cur );
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}
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//____________________________________________________________________________//
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// ************************************************************************** //
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// ************** deref ************** //
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// ************************************************************************** //
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template<class RefType,typename C>
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inline RefType
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deref( static_any_t cur, C&, ::boost::type<RefType>, mpl::false_ )
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{
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return *static_any_cast<BOOST_DEDUCED_TYPENAME C::iterator>( cur );
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}
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//____________________________________________________________________________//
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template<class RefType,typename C>
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inline RefType
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deref( static_any_t cur, C const&, ::boost::type<RefType>, mpl::true_ )
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{
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return *static_any_cast<BOOST_DEDUCED_TYPENAME C::const_iterator>( cur );
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}
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//____________________________________________________________________________//
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// ************************************************************************** //
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// ************** BOOST_TEST_FOREACH ************** //
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// ************************************************************************** //
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#define BOOST_TEST_FE_ANY ::boost::unit_test::for_each::static_any_t
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#define BOOST_TEST_FE_IS_CONST( COL ) ::boost::unit_test::for_each::is_const_coll( COL )
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#define BOOST_TEST_FE_BEG( COL ) \
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::boost::unit_test::for_each::begin( \
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COL, \
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BOOST_TEST_FE_IS_CONST( COL ) ) \
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/**/
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#define BOOST_TEST_FE_END( COL ) \
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::boost::unit_test::for_each::end( \
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COL, \
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BOOST_TEST_FE_IS_CONST( COL ) ) \
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/**/
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#define BOOST_TEST_FE_DONE( COL ) \
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::boost::unit_test::for_each::done( \
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BOOST_TEST_FE_CUR_VAR, \
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BOOST_TEST_FE_END_VAR, \
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COL, \
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BOOST_TEST_FE_IS_CONST( COL ) ) \
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/**/
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#define BOOST_TEST_FE_NEXT( COL ) \
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::boost::unit_test::for_each::next( \
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BOOST_TEST_FE_CUR_VAR, \
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COL, \
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BOOST_TEST_FE_IS_CONST( COL ) ) \
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/**/
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#define BOOST_TEST_FE_PREV( COL ) \
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::boost::unit_test::for_each::prev( \
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BOOST_TEST_FE_CUR_VAR, \
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COL, \
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BOOST_TEST_FE_IS_CONST( COL ) ) \
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/**/
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#define BOOST_FOREACH_NOOP(COL) \
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((void)&(COL))
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#define BOOST_TEST_FE_DEREF( COL, RefType ) \
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::boost::unit_test::for_each::deref( \
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BOOST_TEST_FE_CUR_VAR, \
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COL, \
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::boost::type<RefType >(), \
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BOOST_TEST_FE_IS_CONST( COL ) ) \
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/**/
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#if BOOST_WORKAROUND( BOOST_MSVC, == 1310 )
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#define BOOST_TEST_LINE_NUM
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#else
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#define BOOST_TEST_LINE_NUM __LINE__
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#endif
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#define BOOST_TEST_FE_CUR_VAR BOOST_JOIN( _fe_cur_, BOOST_TEST_LINE_NUM )
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#define BOOST_TEST_FE_END_VAR BOOST_JOIN( _fe_end_, BOOST_TEST_LINE_NUM )
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#define BOOST_TEST_FE_CON_VAR BOOST_JOIN( _fe_con_, BOOST_TEST_LINE_NUM )
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#define BOOST_TEST_FOREACH( RefType, var, COL ) \
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if( BOOST_TEST_FE_ANY BOOST_TEST_FE_CUR_VAR = BOOST_TEST_FE_BEG( COL ) ) {} else \
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if( BOOST_TEST_FE_ANY BOOST_TEST_FE_END_VAR = BOOST_TEST_FE_END( COL ) ) {} else \
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for( bool BOOST_TEST_FE_CON_VAR = true; \
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BOOST_TEST_FE_CON_VAR && !BOOST_TEST_FE_DONE( COL ); \
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BOOST_TEST_FE_CON_VAR ? BOOST_TEST_FE_NEXT( COL ) : BOOST_FOREACH_NOOP( COL )) \
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\
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if( (BOOST_TEST_FE_CON_VAR = false, false) ) {} else \
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for( RefType var = BOOST_TEST_FE_DEREF( COL, RefType ); \
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!BOOST_TEST_FE_CON_VAR; BOOST_TEST_FE_CON_VAR = true ) \
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/**/
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#define BOOST_TEST_REVERSE_FOREACH( RefType, var, COL ) \
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if( BOOST_TEST_FE_ANY BOOST_TEST_FE_CUR_VAR = BOOST_TEST_FE_END( COL ) ) {} else \
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if( BOOST_TEST_FE_ANY BOOST_TEST_FE_END_VAR = BOOST_TEST_FE_BEG( COL ) ) {} else \
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for( bool BOOST_TEST_FE_CON_VAR = true; \
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BOOST_TEST_FE_CON_VAR && !BOOST_TEST_FE_DONE( COL ); ) \
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\
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if( (BOOST_TEST_FE_CON_VAR = false, false) ) {} else \
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if( (BOOST_TEST_FE_PREV( COL ), false) ) {} else \
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for( RefType var = BOOST_TEST_FE_DEREF( COL, RefType ); \
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!BOOST_TEST_FE_CON_VAR; BOOST_TEST_FE_CON_VAR = true ) \
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/**/
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//____________________________________________________________________________//
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} // namespace for_each
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} // namespace unit_test
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} // namespace boost
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#include <boost/test/detail/enable_warnings.hpp>
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#endif // BOOST_TEST_UTILS_FOREACH_HPP
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