libstdc++-v3/testsuite/25_algorithms/for_each/1.cc

   1 // { dg-options "-std=gnu++11" }
   2
   3 // 2010-02-19  Paolo Carlini  <paolo.carlini@oracle.com>
   4
   5 // Copyright (C) 2010-2016 Free Software Foundation, Inc.
   6 //
   7 // This file is part of the GNU ISO C++ Library.  This library is free
   8 // software; you can redistribute it and/or modify it under the
   9 // terms of the GNU General Public License as published by the
  10 // Free Software Foundation; either version 3, or (at your option)
  11 // any later version.
  12
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17
  18 // You should have received a copy of the GNU General Public License along
  19 // with this library; see the file COPYING3.  If not see
  20 // <http://www.gnu.org/licenses/>.
  21
  22 // XXX FIXME:  parallel-mode should deal correctly with moveable-only types
  23 // per C++0x, at minimum smoothly fall back to serial.
  24 #undef _GLIBCXX_PARALLEL
  25
  26 #include <algorithm>
  27 #include <testsuite_hooks.h>
  28 #include <testsuite_iterators.h>
  29
  30 struct Function
  31 {
  32   Function() : tot(0) { }
  33   Function(Function&& f) : tot(f.tot) { f.tot = 0; }
  34
  35   Function(const Function&) = delete;
  36
  37   void operator()(int num)
  38   { tot += num; }
  39
  40   int get() { return tot; }
  41
  42 private:
  43   int tot;
  44 };
  45
  46 void test01()
  47 {
  48   bool test __attribute__((unused)) = true;
  49   using __gnu_test::test_container;
  50   using __gnu_test::input_iterator_wrapper;
  51
  52   typedef test_container<int, input_iterator_wrapper> Container;
  53
  54   int array[5] = { 1, 2, 3, 4, 5 };
  55   Container con(array, array + 5);
  56
  57   Function f;
  58   Function f_res = std::for_each(con.begin(), con.end(), std::move(f));
  59
  60   VERIFY( f_res.get() == 15 );
  61 }
  62
  63 int main()
  64 {
  65   test01();
  66   return 0;
  67 }