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/* Boost.MultiIndex test for projection capabilities.
*
* Copyright 2003-2005 Joaqun M Lpez Muoz.
* 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)
*
* See http://www.boost.org/libs/multi_index for library home page.
*/
#include "test_projection.hpp"
#include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
#include "pre_multi_index.hpp"
#include "employee.hpp"
#include <boost/test/test_tools.hpp>
using namespace boost::multi_index;
void test_projection()
{
employee_set es;
es.insert(employee(0,"Joe",31,1123));
es.insert(employee(1,"Robert",27,5601));
es.insert(employee(2,"John",40,7889));
es.insert(employee(3,"Albert",20,9012));
es.insert(employee(4,"John",57,1002));
employee_set::iterator it,itbis;
employee_set_by_name::iterator it1;
employee_set_by_age::iterator it2;
employee_set_as_inserted::iterator it3;
BOOST_STATIC_ASSERT((boost::is_same<
employee_set::iterator,
nth_index_iterator<employee_set,0>::type >::value));
BOOST_STATIC_ASSERT((boost::is_same<
employee_set_by_name::iterator,
nth_index_iterator<employee_set,1>::type >::value));
#if defined(BOOST_NO_MEMBER_TEMPLATES)
BOOST_STATIC_ASSERT((boost::is_same<
employee_set_by_age::iterator,
index_iterator<employee_set,age>::type >::value));
#else
BOOST_STATIC_ASSERT((boost::is_same<
employee_set_by_age::iterator,
employee_set::index_iterator<age>::type >::value));
#endif
BOOST_STATIC_ASSERT((boost::is_same<
employee_set_as_inserted::iterator,
nth_index_iterator<employee_set,3>::type >::value));
it= es.find(employee(1,"Robert",27,5601));
it1= project<name>(es,it);
it2= project<age>(es,it1);
it3= project<as_inserted>(es,it2);
#if defined(BOOST_NO_MEMBER_TEMPLATES)
itbis=project<0>(es,it3);
#else
itbis=es.project<0>(it3);
#endif
BOOST_CHECK(*it==*it1&&*it1==*it2&&*it2==*it3&&itbis==it);
const employee_set& ces=es;
employee_set::const_iterator cit,citbis;
employee_set_by_name::const_iterator cit1;
employee_set_by_age::const_iterator cit2;
employee_set_as_inserted::const_iterator cit3;
BOOST_STATIC_ASSERT((boost::is_same<
employee_set::const_iterator,
nth_index_const_iterator<employee_set,0>::type >::value));
BOOST_STATIC_ASSERT((boost::is_same<
employee_set_by_name::const_iterator,
nth_index_const_iterator<employee_set,1>::type >::value));
#if defined(BOOST_NO_MEMBER_TEMPLATES)
BOOST_STATIC_ASSERT((boost::is_same<
employee_set_by_age::const_iterator,
index_const_iterator<employee_set,age>::type >::value));
#else
BOOST_STATIC_ASSERT((boost::is_same<
employee_set_by_age::const_iterator,
employee_set::index_const_iterator<age>::type >::value));
#endif
BOOST_STATIC_ASSERT((boost::is_same<
employee_set_as_inserted::const_iterator,
nth_index_const_iterator<employee_set,3>::type >::value));
BOOST_CHECK(project<name>(es,es.end())==get<name>(es).end());
BOOST_CHECK(project<age>(es,es.end())==get<age>(es).end());
BOOST_CHECK(project<as_inserted>(es,es.end())==get<as_inserted>(es).end());
cit= ces.find(employee(4,"John",57,1002));
#if defined(BOOST_NO_MEMBER_TEMPLATES)
cit1= project<by_name>(ces,cit);
#else
cit1= ces.project<by_name>(cit);
#endif
cit2= project<age>(ces,cit1);
#if defined(BOOST_NO_MEMBER_TEMPLATES)
cit3= project<as_inserted>(ces,cit2);
#else
cit3= ces.project<as_inserted>(cit2);
#endif
citbis=project<0>(ces,cit3);
BOOST_CHECK(*cit==*cit1&&*cit1==*cit2&&*cit2==*cit3&&citbis==cit);
}
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