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3rdparty/boost_1_81_0/libs/mpl/test/count.cpp 1.31 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/count.hpp>
  
  #include <boost/mpl/vector.hpp>
  #include <boost/mpl/vector_c.hpp>
  #include <boost/mpl/integral_c.hpp>
  #include <boost/mpl/aux_/test.hpp>
  
  MPL_TEST_CASE()
  {
      typedef vector<int,char,long,short,char,long,double,long> types;
  
      MPL_ASSERT_RELATION( (count<types,int>::value), ==, 1 );
      MPL_ASSERT_RELATION( (count<types,double>::value), ==, 1 );
      MPL_ASSERT_RELATION( (count<types,char>::value), ==, 2 );
      MPL_ASSERT_RELATION( (count<types,long>::value), ==, 3 );
      MPL_ASSERT_RELATION( (count<types,unsigned>::value), ==, 0 );
  }
      
  MPL_TEST_CASE()
  {
      typedef vector_c<int,1,0,5,1,7,5,0,5> values;
  
      MPL_ASSERT_RELATION( (count< values, integral_c<int,1> >::value), ==, 2 );
      MPL_ASSERT_RELATION( (count< values, integral_c<int,0> >::value), ==, 2 );
      MPL_ASSERT_RELATION( (count< values, integral_c<int,5> >::value), ==, 3 );
      MPL_ASSERT_RELATION( (count< values, integral_c<int,7> >::value), ==, 1 );
      MPL_ASSERT_RELATION( (count< values, integral_c<int,8> >::value), ==, 0 );
  }