ceph/src/boost/libs/multi_array/test/fail_ref_cview2.cpp

   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
  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 }
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