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+// Copyright 2002 The Trustees of Indiana University.
+
+// Use, modification and distribution is subject to 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)
+
+// Boost.MultiArray Library
+// Authors: Ronald Garcia
+// Jeremy Siek
+// Andrew Lumsdaine
+// See http://www.boost.org/libs/multi_array for documentation.
+
+//
+// index_bases - test of the index_base modifying facilities.
+//
+
+#include <boost/multi_array.hpp>
+
+#include <boost/core/lightweight_test.hpp>
+
+#include <boost/array.hpp>
+#include <vector>
+#include <iostream>
+int
+main()
+{
+ typedef boost::multi_array<double, 3> array;
+ typedef boost::multi_array_ref<double, 3> array_ref;
+ typedef boost::const_multi_array_ref<double, 3> const_array_ref;
+ typedef array::array_view<3>::type array_view;
+
+ typedef array::size_type size_type;
+ typedef array::extent_range range;
+ typedef array::index_range irange;
+
+ array::extent_gen extents;
+ array::index_gen indices;
+
+ // Construct with nonzero bases
+ {
+
+ array A(extents[range(1,4)][range(2,5)][range(3,6)]);
+ array B(extents[3][3][3]);
+
+ double ptr[27];
+ array_ref
+ C(ptr,extents[range(1,4)][range(2,5)][range(3,6)]);
+
+ const_array_ref
+ D(ptr,extents[range(1,4)][range(2,5)][range(3,6)]);
+
+ array_view E = A[indices[irange()][irange()][irange()]];
+
+ std::vector<double> vals;
+ for (int i = 0; i < 27; ++i)
+ vals.push_back(i);
+
+ A.assign(vals.begin(),vals.end());
+ B.assign(vals.begin(),vals.end());
+ C.assign(vals.begin(),vals.end());
+
+ boost::array<int,3> bases = { { 1, 2, 3 } };
+ for (size_type a = 0; a < A.shape()[0]; ++a)
+ for (size_type b = 0; b < A.shape()[1]; ++b)
+ for (size_type c = 0; c < A.shape()[2]; ++c) {
+ BOOST_TEST(A[a+bases[0]][b+bases[1]][c+bases[2]] == B[a][b][c]);
+ BOOST_TEST(C[a+bases[0]][b+bases[1]][c+bases[2]] == B[a][b][c]);
+ BOOST_TEST(D[a+bases[0]][b+bases[1]][c+bases[2]] == B[a][b][c]);
+ // Test that E does not inherit A's index_base
+ BOOST_TEST(E[a][b][c] == B[a][b][c]);
+ }
+ }
+
+ // Reindex
+ {
+ typedef array::size_type size_type;
+ array A(extents[3][3][3]), B(extents[3][3][3]);
+
+ double ptr[27];
+ array_ref C(ptr,extents[3][3][3]);
+ const_array_ref D(ptr,extents[3][3][3]);
+
+ array_view E = B[indices[irange()][irange()][irange()]];
+
+ std::vector<double> vals;
+ for (int i = 0; i < 27; ++i)
+ vals.push_back(i);
+
+ A.assign(vals.begin(),vals.end());
+ B.assign(vals.begin(),vals.end());
+ C.assign(vals.begin(),vals.end());
+
+ boost::array<int,3> bases = { { 1, 2, 3 } };
+
+ A.reindex(bases);
+ C.reindex(bases);
+ D.reindex(bases);
+ E.reindex(bases);
+
+ for (size_type a = 0; a < A.shape()[0]; ++a)
+ for (size_type b = 0; b < A.shape()[1]; ++b)
+ for (size_type c = 0; c < A.shape()[2]; ++c) {
+ BOOST_TEST(A[a+bases[0]][b+bases[1]][c+bases[2]] == B[a][b][c]);
+ BOOST_TEST(C[a+bases[0]][b+bases[1]][c+bases[2]] == B[a][b][c]);
+ BOOST_TEST(D[a+bases[0]][b+bases[1]][c+bases[2]] == B[a][b][c]);
+ BOOST_TEST(E[a+bases[0]][b+bases[1]][c+bases[2]] == B[a][b][c]);
+ }
+ }
+
+ // Set Index Base
+ {
+ typedef array::size_type size_type;
+ array A(extents[3][3][3]), B(extents[3][3][3]);
+
+ double ptr[27];
+ array_ref C(ptr,extents[3][3][3]);
+ const_array_ref D(ptr,extents[3][3][3]);
+
+ array_view E = B[indices[irange()][irange()][irange()]];
+
+ std::vector<double> vals;
+ for (int i = 0; i < 27; ++i)
+ vals.push_back(i);
+
+ A.assign(vals.begin(),vals.end());
+ B.assign(vals.begin(),vals.end());
+ C.assign(vals.begin(),vals.end());
+
+#ifdef BOOST_NO_SFINAE
+ typedef boost::multi_array_types::index index;
+ A.reindex(index(1));
+ C.reindex(index(1));
+ D.reindex(index(1));
+ E.reindex(index(1));
+#else
+ A.reindex(1);
+ C.reindex(1);
+ D.reindex(1);
+ E.reindex(1);
+#endif
+
+ for (size_type a = 0; a < A.shape()[0]; ++a)
+ for (size_type b = 0; b < A.shape()[1]; ++b)
+ for (size_type c = 0; c < A.shape()[2]; ++c) {
+ BOOST_TEST(A[a+1][b+1][c+1] == B[a][b][c]);
+ BOOST_TEST(C[a+1][b+1][c+1] == B[a][b][c]);
+ BOOST_TEST(D[a+1][b+1][c+1] == B[a][b][c]);
+ BOOST_TEST(E[a+1][b+1][c+1] == B[a][b][c]);
+ }
+ }
+
+ return boost::report_errors();
+}