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3rdparty/boost_1_81_0/libs/mpl/test/at.cpp 972 Bytes
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/at.hpp>
  #include <boost/mpl/vector/vector10_c.hpp>
  #include <boost/mpl/aux_/test.hpp>
  
  template< typename Seq, int n > struct at_test
  {
      typedef typename at_c<Seq,n>::type t;
      MPL_ASSERT(( is_same< t, integral_c<int,9-n> > ));
      MPL_ASSERT_RELATION( t::value, ==, 9 - n );
  };
  
  MPL_TEST_CASE()
  {
      typedef vector10_c<int,9,8,7,6,5,4,3,2,1,0> numbers;
      
      at_test< numbers, 0 >();
      at_test< numbers, 1 >();
      at_test< numbers, 2 >();
      at_test< numbers, 3 >();
      at_test< numbers, 4 >();
      at_test< numbers, 5 >();
      at_test< numbers, 6 >();
      at_test< numbers, 7 >();
      at_test< numbers, 8 >();
      at_test< numbers, 9 >();
  }