text: ///////////////////////////////////////////////////////////////////////////
  //
  // Copyright (c) 2007-2011, Industrial Light & Magic, a division of Lucas
  // Digital Ltd. LLC
  // 
  // All rights reserved.
  // 
  // Redistribution and use in source and binary forms, with or without
  // modification, are permitted provided that the following conditions are
  // met:
  // *       Redistributions of source code must retain the above copyright
  // notice, this list of conditions and the following disclaimer.
  // *       Redistributions in binary form must reproduce the above
  // copyright notice, this list of conditions and the following disclaimer
  // in the documentation and/or other materials provided with the
  // distribution.
  // *       Neither the name of Industrial Light & Magic nor the names of
  // its contributors may be used to endorse or promote products derived
  // from this software without specific prior written permission. 
  // 
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  //
  ///////////////////////////////////////////////////////////////////////////
  
  #include "PyImathAutovectorize.h"
  
  
  namespace PyImath {
  
  namespace detail {
  //
  // cheek possible vectorizations to ensure correctness
  //
  // single argument should be ((false),(true))
  //
  BOOST_STATIC_ASSERT(( size<possible_vectorizations<1>::type>::type::value == 2 ));
  BOOST_STATIC_ASSERT(( size<at_c<possible_vectorizations<1>::type,0>::type>::type::value == 1 ));
  BOOST_STATIC_ASSERT(( at_c<at_c<possible_vectorizations<1>::type,0>::type,0>::type::value == false ));
  BOOST_STATIC_ASSERT(( size<at_c<possible_vectorizations<1>::type,1>::type>::type::value == 1 ));
  BOOST_STATIC_ASSERT(( at_c<at_c<possible_vectorizations<1>::type,1>::type,0>::type::value == true ));
  
  //
  // two argument should be ((false,false),(false,true),(true,false),(true,true))
  //
  BOOST_STATIC_ASSERT(( size<possible_vectorizations<2>::type>::type::value == 4 ));
  BOOST_STATIC_ASSERT(( size<at_c<possible_vectorizations<2>::type,0>::type>::type::value == 2 ));
  BOOST_STATIC_ASSERT(( at_c<at_c<possible_vectorizations<2>::type,0>::type,0>::type::value == false ));
  BOOST_STATIC_ASSERT(( at_c<at_c<possible_vectorizations<2>::type,0>::type,1>::type::value == false ));
  BOOST_STATIC_ASSERT(( size<at_c<possible_vectorizations<2>::type,1>::type>::type::value == 2 ));
  BOOST_STATIC_ASSERT(( at_c<at_c<possible_vectorizations<2>::type,1>::type,0>::type::value == false ));
  BOOST_STATIC_ASSERT(( at_c<at_c<possible_vectorizations<2>::type,1>::type,1>::type::value == true ));
  BOOST_STATIC_ASSERT(( size<at_c<possible_vectorizations<2>::type,2>::type>::type::value == 2 ));
  BOOST_STATIC_ASSERT(( at_c<at_c<possible_vectorizations<2>::type,2>::type,0>::type::value == true ));
  BOOST_STATIC_ASSERT(( at_c<at_c<possible_vectorizations<2>::type,2>::type,1>::type::value == false ));
  BOOST_STATIC_ASSERT(( size<at_c<possible_vectorizations<2>::type,3>::type>::type::value == 2 ));
  BOOST_STATIC_ASSERT(( at_c<at_c<possible_vectorizations<2>::type,3>::type,0>::type::value == true ));
  BOOST_STATIC_ASSERT(( at_c<at_c<possible_vectorizations<2>::type,3>::type,1>::type::value == true ));
  BOOST_STATIC_ASSERT(( size<possible_vectorizations<3>::type>::type::value == 8 ));
  
  //
  // Check disallow_vectorization for given vectorizable flags
  //
  BOOST_STATIC_ASSERT(( disallow_vectorization<vector<true_ > >::apply<vector<true_ > >::type::value == false  ));
  BOOST_STATIC_ASSERT(( disallow_vectorization<vector<true_ > >::apply<vector<false_> >::type::value == false  ));
  BOOST_STATIC_ASSERT(( disallow_vectorization<vector<false_> >::apply<vector<true_ > >::type::value == true  ));
  BOOST_STATIC_ASSERT(( disallow_vectorization<vector<false_> >::apply<vector<false_> >::type::value == false  ));
  
  BOOST_STATIC_ASSERT(( disallow_vectorization<vector<true_ , true_ > >::apply<vector<true_ , true_ > >::type::value == false  ));
  BOOST_STATIC_ASSERT(( disallow_vectorization<vector<true_ , true_ > >::apply<vector<false_, true_ > >::type::value == false  ));
  BOOST_STATIC_ASSERT(( disallow_vectorization<vector<true_ , true_ > >::apply<vector<true_ , false_> >::type::value == false  ));
  BOOST_STATIC_ASSERT(( disallow_vectorization<vector<true_ , true_ > >::apply<vector<false_, false_> >::type::value == false  ));
  BOOST_STATIC_ASSERT(( disallow_vectorization<vector<true_ , false_> >::apply<vector<true_ , true_ > >::type::value == true  ));
  BOOST_STATIC_ASSERT(( disallow_vectorization<vector<true_ , false_> >::apply<vector<false_, true_ > >::type::value == true  ));
  BOOST_STATIC_ASSERT(( disallow_vectorization<vector<true_ , false_> >::apply<vector<true_ , false_> >::type::value == false  ));
  BOOST_STATIC_ASSERT(( disallow_vectorization<vector<true_ , false_> >::apply<vector<false_, false_> >::type::value == false  ));
  BOOST_STATIC_ASSERT(( disallow_vectorization<vector<false_, true_ > >::apply<vector<true_ , true_ > >::type::value == true   ));
  BOOST_STATIC_ASSERT(( disallow_vectorization<vector<false_, true_ > >::apply<vector<false_, true_ > >::type::value == false  ));
  BOOST_STATIC_ASSERT(( disallow_vectorization<vector<false_, true_ > >::apply<vector<true_ , false_> >::type::value == true  ));
  BOOST_STATIC_ASSERT(( disallow_vectorization<vector<false_, true_ > >::apply<vector<false_, false_> >::type::value == false  ));
  BOOST_STATIC_ASSERT(( disallow_vectorization<vector<false_, false_> >::apply<vector<true_ , true_ > >::type::value == true  ));
  BOOST_STATIC_ASSERT(( disallow_vectorization<vector<false_, false_> >::apply<vector<false_, true_ > >::type::value == true  ));
  BOOST_STATIC_ASSERT(( disallow_vectorization<vector<false_, false_> >::apply<vector<true_ , false_> >::type::value == true  ));
  BOOST_STATIC_ASSERT(( disallow_vectorization<vector<false_, false_> >::apply<vector<false_, false_> >::type::value == false  ));
  
  //
  // Check allowable_vectorizations, single argument not vectorizable, and two argument second argument vectorizable.
  //
  typedef allowable_vectorizations<vector<false_> > AV1f;
  BOOST_STATIC_ASSERT(( size<AV1f::possible>::type::value == 2 ));
  BOOST_STATIC_ASSERT(( at_c<at_c<AV1f::possible,0>::type,0>::type::value == false ));
  BOOST_STATIC_ASSERT(( at_c<at_c<AV1f::possible,1>::type,0>::type::value == true ));
  BOOST_STATIC_ASSERT(( size<AV1f::type>::type::value == 1 ));
  BOOST_STATIC_ASSERT(( size<at_c<AV1f::type,0>::type>::type::value == 1 ));
  BOOST_STATIC_ASSERT(( at_c<at_c<AV1f::type,0>::type,0>::type::value == false ));
  
  typedef allowable_vectorizations<vector<false_,true_> > AV2ft;
  BOOST_STATIC_ASSERT(( size<AV2ft::type>::type::value == 2 ));
  BOOST_STATIC_ASSERT(( size<at_c<AV2ft::type,0>::type>::type::value == 2 ));
  BOOST_STATIC_ASSERT(( at_c<at_c<AV2ft::type,0>::type,0>::type::value == false ));
  BOOST_STATIC_ASSERT(( at_c<at_c<AV2ft::type,0>::type,1>::type::value == false ));
  BOOST_STATIC_ASSERT(( size<at_c<AV2ft::type,1>::type>::type::value == 2 ));
  BOOST_STATIC_ASSERT(( at_c<at_c<AV2ft::type,1>::type,0>::type::value == false ));
  BOOST_STATIC_ASSERT(( at_c<at_c<AV2ft::type,1>::type,1>::type::value == true ));
  
  } // namespace detail
  
  } // namespace PyImath
  