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

   1 // { dg-do run { target c++11 } }
   2
   3 // Copyright (C) 2011-2023 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 #include <valarray>
  21 #include <testsuite_hooks.h>
  22
  23 void test01()
  24 {
  25   std::valarray<int> a(1, 1), b(-1, 2);
  26   b.swap(a);
  27   VERIFY( b.size() == 1 && b[0] == 1
  28           && a.size() == 2 && a[0] == -1 && a[1] == -1 );
  29 }
  30
  31 int main()
  32 {
  33   test01();
  34   return 0;
  35 }