libstdc++-v3/testsuite/23_containers/forward_list/modifiers/1.cc

   1 // { dg-do run { target c++11 } }
   2
   3 // Copyright (C) 2008-2021 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 // 23.2.3.n forward_list xxx [lib.forward_list.xxx]
  21
  22 #include <forward_list>
  23 #include <testsuite_hooks.h>
  24
  25 #include <array>
  26
  27 class PathPoint
  28 {
  29 public:
  30   PathPoint(char t, std::array<double, 3> & c)
  31   : type(t), coord(c) { }
  32   char getType() const { return type; }
  33 private:
  34   char type;
  35   std::array<double, 3> coord;
  36 };
  37
  38 // This test verifies the following.
  39 //   emplace_front
  40 //   pop_front
  41 //   emplace_after
  42 void
  43 test01()
  44 {
  45   std::forward_list<PathPoint> path;
  46   std::array<double, 3> coord1 = { { 0.0, 1.0, 2.0 } };
  47   path.emplace_front('a', coord1);
  48
  49   std::forward_list<PathPoint>::const_iterator pos = path.cbegin();
  50
  51   std::array<double, 3> coord2 = { { 3.0, 4.0, 5.0 } };
  52   path.emplace_after(pos, 'b', coord2);
  53
  54   VERIFY(path.front().getType() == 'a');
  55
  56   path.pop_front();
  57
  58   VERIFY(path.front().getType() == 'b');
  59
  60   path.pop_front();
  61
  62   VERIFY(path.empty() == true);
  63 }
  64
  65 int
  66 main()
  67 {
  68   test01();
  69   return 0;
  70 }