libstdc++-v3/testsuite/23_containers/forward_list/operations/4.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 // This test verifies the following:
  26 //   unique
  27 void
  28 test01()
  29 {
  30   std::forward_list<int> fl = {99, 5, 99, 6, -5, 666, 777, 888,
  31                                42, 42, 42, 42, 42, 7, 0, 0, 0, 9, 9, 9};
  32
  33   fl.unique();
  34
  35   std::forward_list<int> fl2 = {99, 5, 99, 6, -5, 666, 777, 888, 42, 7, 0, 9};
  36   VERIFY(fl == fl2);
  37 }
  38
  39 //  Test comparison predicate.
  40 template<typename Num>
  41   class Mod
  42   {
  43   public:
  44     Mod(const Num & mod)
  45       {
  46         m = mod;
  47       }
  48     bool operator()(const Num i, const Num j)
  49       {
  50         return i%m == j%m;
  51       }
  52   private:
  53     Num m;
  54   };
  55
  56 // This test verifies the following:
  57 //   unique with predicate
  58 void
  59 test02()
  60 {
  61   std::forward_list<int> fl = {99, 5, 99, 6, -5, 666, 777, 888, 42, 7, 0, 9};
  62
  63   fl.unique(Mod<int>(111));
  64
  65   std::forward_list<int> fl2 = {99, 5, 99, 6, -5, 666, 42, 7, 0, 9};
  66   VERIFY(fl == fl2);
  67 }
  68
  69 int
  70 main()
  71 {
  72   test01();
  73   test02();
  74   return 0;
  75 }