1 // Copyright 2002 The Trustees of Indiana University.
2
3 // Use, modification and distribution is subject to the Boost Software
4 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
5 // http://www.boost.org/LICENSE_1_0.txt)
6
7 // Boost.MultiArray Library
8 // Authors: Ronald Garcia
9 // Jeremy Siek
10 // Andrew Lumsdaine
11 // See http://www.boost.org/libs/multi_array for documentation.
12
13 //
14 // fail_ref_cview3.cpp -
15 // ensure const_array_view doesn't allow assignment.
16 //
17
18 #include <boost/multi_array.hpp>
19
20 #include <boost/core/lightweight_test.hpp>
21
22 #include <boost/array.hpp>
23 #include <boost/type.hpp>
24
25 int
main()26 main()
27 {
28 const int ndims=3;
29 typedef boost::multi_array_ref<int,ndims> array_ref;
30
31 boost::array<array_ref::size_type,ndims> sma_dims = {{2,3,4}};
32
33 int data[] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,
34 14,15,16,17,18,19,20,21,22,23};
35
36 array_ref sma(data,sma_dims);
37
38 //
39 // subarray dims:
40 // [base,stride,bound)
41 // [0,1,2), [1,1,3), [0,2,4)
42 //
43
44 const array_ref& csma = sma;
45
46 typedef array_ref::index_range range;
47 array_ref::index_gen indices;
48 array_ref::const_array_view<ndims>::type csma2 =
49 csma[indices[range(0,2)][range(1,3)][range(0,4,2)]];
50
51 for (array_ref::index i = 0; i != 2; ++i)
52 for (array_ref::index j = 0; j != 2; ++j)
53 for (array_ref::index k = 0; k != 2; ++k)
54 csma2[i][j][k] = 0; // FAIL! csma2 is read only.
55
56 return boost::report_errors();
57 }
58
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