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3rdparty/boost_1_81_0/libs/mpl/test/find.cpp 1.15 KB
73ef4ff3   Hu Chunming   提交三方库
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  // Copyright Aleksey Gurtovoy 2000-2004
  //
  // 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/mpl for documentation.
  
  // $Id$
  // $Date$
  // $Revision$
  
  #include <boost/mpl/find.hpp>
  #include <boost/mpl/list.hpp>
  #include <boost/mpl/list_c.hpp>
  #include <boost/mpl/distance.hpp>
  #include <boost/mpl/begin_end.hpp>
  #include <boost/mpl/int.hpp>
  #include <boost/mpl/aux_/test.hpp>
  
  MPL_TEST_CASE()
  {    
      typedef list<int,char,long,short,char,long,double,long>::type types;
      typedef list_c<int,1,0,5,1,7,5,0,5> values;
  
      typedef find<types, short>::type types_iter;
      typedef find< values, integral_c<int,7> >::type values_iter;
     
      MPL_ASSERT(( is_same< deref<types_iter>::type, short> ));
      MPL_ASSERT_RELATION( deref<values_iter>::type::value, ==, 7 );
  
      typedef begin<types>::type types_first;
      typedef begin<values>::type values_first;
      MPL_ASSERT_RELATION( (mpl::distance< types_first,types_iter >::value), ==, 3 );
      MPL_ASSERT_RELATION( (mpl::distance< values_first,values_iter >::value), ==, 4 );
  }