libstdc++-v3/testsuite/26_numerics/slice_array/array_assignment.cc

   1 // 20010613 gdr
   2
   3 // Copyright (C) 2001-2018 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 // This is DR-253.  Test for accessible assignment-operators.
  21 #include <valarray>
  22 #include <testsuite_hooks.h>
  23
  24 int main()
  25 {
  26   using std::valarray;
  27   using std::slice;
  28   valarray<int> v(1, 10), w(2, 10);
  29
  30   w[slice(0, 3, 3)] = v[slice(2, 3, 3)];
  31
  32   VERIFY(v[0] == 1 && w[0] == 1);
  33   VERIFY(v[3] == 1 && w[3] == 1);
  34   VERIFY(v[6] == 1 && w[6] == 1);
  35
  36   std::slice_array<int> t __attribute__((unused)) = v[slice(0, 10, 1)];
  37
  38   return 0;
  39 }