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3rdparty/boost_1_81_0/libs/mpl/test/bitwise.cpp 2.71 KB
73ef4ff3   Hu Chunming   提交三方库
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  // Copyright Aleksey Gurtovoy 2003-2004
  // Copyright Jaap Suter 2003
  //
  // 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/bitwise.hpp>
  #include <boost/mpl/integral_c.hpp>
  #include <boost/mpl/aux_/test.hpp>
  
  typedef integral_c<unsigned int, 0> _0;
  typedef integral_c<unsigned int, 1> _1;
  typedef integral_c<unsigned int, 2> _2;
  typedef integral_c<unsigned int, 8> _8;
  typedef integral_c<unsigned int, 0xffffffff> _ffffffff;
  
  MPL_TEST_CASE()
  {
      MPL_ASSERT_RELATION( (bitand_<_0,_0>::value), ==, 0 );
      MPL_ASSERT_RELATION( (bitand_<_1,_0>::value), ==, 0 );
      MPL_ASSERT_RELATION( (bitand_<_0,_1>::value), ==, 0 );
      MPL_ASSERT_RELATION( (bitand_<_0,_ffffffff>::value), ==, 0 );
      MPL_ASSERT_RELATION( (bitand_<_1,_ffffffff>::value), ==, 1 );
      MPL_ASSERT_RELATION( (bitand_<_8,_ffffffff>::value), ==, 8 );
  }
  
  MPL_TEST_CASE()
  {
      MPL_ASSERT_RELATION( (bitor_<_0,_0>::value), ==, 0 );
      MPL_ASSERT_RELATION( (bitor_<_1,_0>::value), ==, 1 );
      MPL_ASSERT_RELATION( (bitor_<_0,_1>::value), ==, 1 );
      MPL_ASSERT_RELATION( static_cast<long>(bitor_<_0,_ffffffff>::value), ==, static_cast<long>(0xffffffff) );
      MPL_ASSERT_RELATION( static_cast<long>(bitor_<_1,_ffffffff>::value), ==, static_cast<long>(0xffffffff) );
      MPL_ASSERT_RELATION( static_cast<long>(bitor_<_8,_ffffffff>::value), ==, static_cast<long>(0xffffffff) );
  }
  
  MPL_TEST_CASE()
  {
      MPL_ASSERT_RELATION( (bitxor_<_0,_0>::value), ==, 0 );
      MPL_ASSERT_RELATION( (bitxor_<_1,_0>::value), ==, 1 );
      MPL_ASSERT_RELATION( (bitxor_<_0,_1>::value), ==, 1 );
      MPL_ASSERT_RELATION( static_cast<long>(bitxor_<_0,_ffffffff>::value), ==, static_cast<long>(0xffffffff ^ 0) );
      MPL_ASSERT_RELATION( static_cast<long>(bitxor_<_1,_ffffffff>::value), ==, static_cast<long>(0xffffffff ^ 1) );
      MPL_ASSERT_RELATION( static_cast<long>(bitxor_<_8,_ffffffff>::value), ==, static_cast<long>(0xffffffff ^ 8) );
  }
  
  MPL_TEST_CASE()
  {
      MPL_ASSERT_RELATION( (shift_right<_0,_0>::value), ==, 0 );
      MPL_ASSERT_RELATION( (shift_right<_1,_0>::value), ==, 1 );
      MPL_ASSERT_RELATION( (shift_right<_1,_1>::value), ==, 0 );
      MPL_ASSERT_RELATION( (shift_right<_2,_1>::value), ==, 1 );
      MPL_ASSERT_RELATION( (shift_right<_8,_1>::value), ==, 4 );
  }
  
  MPL_TEST_CASE()
  {
      MPL_ASSERT_RELATION( (shift_left<_0,_0>::value), ==, 0 );
      MPL_ASSERT_RELATION( (shift_left<_1,_0>::value), ==, 1 );
      MPL_ASSERT_RELATION( (shift_left<_1,_1>::value), ==, 2 );
      MPL_ASSERT_RELATION( (shift_left<_2,_1>::value), ==, 4 );
      MPL_ASSERT_RELATION( (shift_left<_8,_1>::value), ==, 16 );
  }