sl@0: // Copyright 2002 The Trustees of Indiana University.
sl@0: 
sl@0: // Use, modification and distribution is subject to the Boost Software 
sl@0: // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
sl@0: // http://www.boost.org/LICENSE_1_0.txt)
sl@0: 
sl@0: //  Boost.MultiArray Library
sl@0: //  Authors: Ronald Garcia
sl@0: //           Jeremy Siek
sl@0: //           Andrew Lumsdaine
sl@0: //  See http://www.boost.org/libs/multi_array for documentation.
sl@0: 
sl@0: // 
sl@0: // slice.cpp - testing out slicing on a matrices
sl@0: //
sl@0: /*
sl@0:  * © Portions copyright (c) 2006-2007 Nokia Corporation.  All rights reserved.
sl@0: */
sl@0: 
sl@0: #include "generative_tests.hpp"
sl@0: #include "boost/array.hpp"
sl@0: #include "boost/mpl/if.hpp"
sl@0: #include "boost/type_traits/is_same.hpp"
sl@0: 
sl@0: template <typename Array>
sl@0: struct view_traits_mutable {
sl@0: public:
sl@0: #if 0 // RG - MSVC can't handle templates nested in templates. Use traits
sl@0:   typedef typename Array::template array_view<3>::type array_view3;
sl@0:   typedef typename Array::template array_view<2>::type array_view2;
sl@0: #endif
sl@0:   typedef typename boost::array_view_gen<Array,3>::type array_view3;
sl@0:   typedef typename boost::array_view_gen<Array,2>::type array_view2;
sl@0: };
sl@0: 
sl@0: template <typename Array>
sl@0: struct view_traits_const {
sl@0: #if 0 // RG - MSVC can't handle templates nested in templates. Use traits
sl@0:   typedef typename Array::template const_array_view<3>::type array_view3;
sl@0:   typedef typename Array::template const_array_view<2>::type array_view2;
sl@0: #endif
sl@0:   typedef typename boost::const_array_view_gen<Array,3>::type array_view3;
sl@0:   typedef typename boost::const_array_view_gen<Array,2>::type array_view2;
sl@0: };
sl@0: 
sl@0: 
sl@0: // Meta-program selects the proper view_traits implementation.
sl@0: template <typename Array, typename ConstTag>
sl@0: struct view_traits_generator :
sl@0:   boost::mpl::if_< boost::is_same<ConstTag,const_array_tag>,
sl@0:                    view_traits_const<Array>,
sl@0:                    view_traits_mutable<Array> >
sl@0: {};
sl@0: 
sl@0: 
sl@0: template <typename Array, typename ViewTraits>
sl@0: void test_views(Array& A, const ViewTraits&) {
sl@0:   typedef typename Array::index index;
sl@0:   typedef typename Array::index_range range;
sl@0:   typename Array::index_gen indices;
sl@0: 
sl@0:   const index idx0 = A.index_bases()[0];
sl@0:   const index idx1 = A.index_bases()[1];
sl@0:   const index idx2 = A.index_bases()[2];
sl@0: 
sl@0:   // Standard View
sl@0:   {
sl@0:     typename ViewTraits::array_view3 B = A[
sl@0:       indices[range(idx0+0,idx0+2)]
sl@0:              [range(idx1+1,idx1+3)]
sl@0:              [range(idx2+0,idx2+4,2)]
sl@0:     ];
sl@0:     
sl@0:     for (index i = 0; i != 2; ++i)
sl@0:       for (index j = 0; j != 2; ++j)
sl@0:         for (index k = 0; k != 2; ++k) {
sl@0:           BOOST_CHECK(B[i][j][k] == A[idx0+i][idx1+j+1][idx2+k*2]);
sl@0:           boost::array<index,3> elmts;
sl@0:           elmts[0]=i; elmts[1]=j; elmts[2]=k;
sl@0:           BOOST_CHECK(B(elmts) == A[idx0+i][idx1+j+1][idx2+k*2]);
sl@0:         }
sl@0:   }
sl@0:   // Degenerate dimensions
sl@0:   {
sl@0:     typename ViewTraits::array_view2 B =
sl@0:       A[indices[range(idx0+0,idx0+2)][idx1+1][range(idx2+0,idx2+4,2)]];
sl@0:     
sl@0:     for (index i = 0; i != 2; ++i)
sl@0:       for (index j = 0; j != 2; ++j) {
sl@0:         BOOST_CHECK(B[i][j] == A[idx0+i][idx1+1][idx2+j*2]);
sl@0:         boost::array<index,2> elmts;
sl@0:         elmts[0]=i; elmts[1]=j;
sl@0:         BOOST_CHECK(B(elmts) == A[idx0+i][idx1+1][idx2+j*2]);
sl@0:       }
sl@0:   }
sl@0:   ++tests_run;
sl@0: }
sl@0: 
sl@0: 
sl@0: template <typename Array>
sl@0: void access(Array& A, const mutable_array_tag&) {
sl@0:   assign(A);
sl@0: 
sl@0:   typedef typename view_traits_generator<Array,mutable_array_tag>::type
sl@0:     m_view_traits;
sl@0: 
sl@0:   typedef typename view_traits_generator<Array,const_array_tag>::type
sl@0:     c_view_traits;
sl@0: 
sl@0:   test_views(A,m_view_traits());
sl@0:   test_views(A,c_view_traits());
sl@0: 
sl@0:   const Array& CA = A;
sl@0:   test_views(CA,c_view_traits());
sl@0: }
sl@0: 
sl@0: template <typename Array>
sl@0: void access(Array& A, const const_array_tag&) {
sl@0:   typedef typename view_traits_generator<Array,const_array_tag>::type
sl@0:     c_view_traits;
sl@0:   test_views(A,c_view_traits());
sl@0: }
sl@0: 
sl@0: 
sl@0: int test_main(int,char*[]) {
sl@0: #ifdef __SYMBIAN32__
sl@0: if(boost::minimal_test::errors_counter() != 0)
sl@0:    assert_failed = true;
sl@0:    	testResultXml("slice");
sl@0: 	close_log_file();
sl@0: #endif
sl@0:   return run_generative_tests();
sl@0: }