libstdc++-v3/testsuite/26_numerics/valarray/dr543.cc

   1 // Copyright (C) 2006 Free Software Foundation
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 2, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING.  If not, write to the Free
  16 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  17 // USA.
  18
  19 #include <valarray>
  20 #include <testsuite_hooks.h>
  21
  22 // DR 543. valarray slice default constructor
  23 void test01()
  24 {
  25   bool test __attribute__((unused)) = true;
  26
  27   std::valarray<int> v1(10);
  28   std::valarray<int> v2 = v1[std::slice()];
  29   VERIFY( v2.size() == 0 );
  30
  31   std::valarray<int> v3(10);
  32   std::valarray<int> v4 = v3[std::gslice()];
  33   VERIFY( v4.size() == 0 );
  34 }
  35
  36 int main()
  37 {
  38   test01();
  39   return 0;
  40 }