ceph/src/boost/libs/multi_array/test/fail_ref_csubarray3.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_csubarray3.cpp -
  15 //   Testing constness of subarray operations.
  16 //
  17
  18 #include "boost/multi_array.hpp"
  19
  20 #include "boost/test/minimal.hpp"
  21
  22 #include "boost/array.hpp"
  23
  24 int
  25 test_main(int,char*[])
  26 {
  27   const int ndims=3;
  28   typedef boost::multi_array_ref<int,ndims> array_ref;
  29
  30   boost::array<array_ref::size_type,ndims> sma_dims = {{2,3,4}};
  31
  32   int data[] = {77,77,77,77,77,77,77,77,77,77,77,77,
  33                  77,77,77,77,77,77,77,77,77,77,77,77};
  34
  35   array_ref sma(data,sma_dims);
  36
  37   int num = 0;
  38   for (array_ref::index i = 0; i != 2; ++i)
  39     for (array_ref::index j = 0; j != 3; ++j)
  40       for (array_ref::index k = 0; k != 4; ++k)
  41         sma[i][j][k] = num++;
  42
  43   const array_ref& sma_const = sma;
  44
  45   array_ref::const_subarray<ndims-1>::type sba = sma_const[0];
  46
  47     for (array_ref::index j = 0; j != 3; ++j)
  48       for (array_ref::index k = 0; k != 4; ++k)
  49         sba[j][k] = num++; // FAIL! can't assign to const_subarray.
  50
  51   return boost::exit_success;
  52 }