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

   1 // Copyright (C) 2006-2022 Free Software Foundation, Inc.
   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 3, 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 COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 #include <valarray>
  19 #include <testsuite_hooks.h>
  20
  21 // DR 543. valarray slice default constructor
  22 void test01()
  23 {
  24   std::valarray<int> v1(10);
  25   std::valarray<int> v2 = v1[std::slice()];
  26   VERIFY( v2.size() == 0 );
  27
  28   std::valarray<int> v3(10);
  29   std::valarray<int> v4 = v3[std::gslice()];
  30   VERIFY( v4.size() == 0 );
  31 }
  32
  33 int main()
  34 {
  35   test01();
  36   return 0;
  37 }