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_cview2.cpp 15 // ensure const_array_view cannot be converted to array_view 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 typedef array_ref::index_range range; 46 array_ref::index_gen indices; 47 array_ref::array_view<ndims>::type csma2 = 48 csma[indices[range(0,2)][range(1,3)][range(0,4,2)]]; 49 50 for (array_ref::index i = 0; i != 2; ++i) 51 for (array_ref::index j = 0; j != 2; ++j) 52 for (array_ref::index k = 0; k != 2; ++k) 53 csma2[i][j][k] = 0; // FAIL! csma2 is read only 54 55 return boost::report_errors(); 56 } 57 58 59 60 61 62 63 64