libstdc++-v3/testsuite/23_containers/forward_list/modifiers/6.cc

   1 // { dg-do run { target c++11 } }
   2
   3 // Copyright (C) 2012-2020 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 <forward_list>
  21
  22 #include <testsuite_hooks.h>
  23
  24 void test01()
  25 {
  26   std::forward_list<int> fl1(1, 5), fl2(1, 4), fl3(1, 3),
  27                          fl4(1, 2), fl5(1, 1), fl6(1, 0);
  28
  29   fl1.splice_after(fl1.before_begin(), fl2);
  30
  31   auto it = fl1.begin();
  32
  33   VERIFY( *it == 4 );
  34
  35   ++it;
  36
  37   VERIFY( *it == 5 );
  38
  39   fl3.splice_after(fl3.before_begin(), fl4, fl4.before_begin());
  40
  41   it = fl3.begin();
  42
  43   VERIFY( *it == 2 );
  44
  45   ++it;
  46
  47   VERIFY( *it == 3 );
  48
  49   fl5.splice_after(fl5.before_begin(), fl6, fl6.before_begin(), fl6.end());
  50
  51   it = fl5.begin();
  52
  53   VERIFY( *it == 0 );
  54
  55   ++it;
  56
  57   VERIFY( *it == 1 );
  58
  59   fl1.merge(fl2);
  60
  61   it = fl1.begin();
  62
  63   VERIFY( *it == 4 );
  64
  65   ++it;
  66
  67   VERIFY( *it == 5 );
  68
  69   fl1.merge(fl3, std::less<int>());
  70
  71   it = fl1.begin();
  72
  73   VERIFY( *it == 2 );
  74
  75   ++it;
  76
  77   VERIFY( *it == 3 );
  78
  79   ++it;
  80
  81   VERIFY( *it == 4 );
  82
  83   ++it;
  84
  85   VERIFY( *it == 5 );
  86 }
  87
  88 int main()
  89 {
  90   test01();
  91   return 0;
  92 }