libstdc++-v3/testsuite/25_algorithms/partial_sort_copy/check_type.cc

   1 // Copyright (C) 2005, 2009 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // 25.3.1.4 [lib.partial.sort.copy]
  19
  20 // { dg-do compile }
  21
  22 #include <algorithm>
  23 #include <testsuite_iterators.h>
  24
  25 using __gnu_test::input_iterator_wrapper;
  26 using __gnu_test::random_access_iterator_wrapper;
  27
  28 struct S1 { };
  29 struct S2
  30 {
  31   S2(const S1&) {}
  32   S2() {}
  33 };
  34
  35 bool
  36 operator<(const S1&, const S1&)
  37 {return true;}
  38
  39 bool
  40 operator<(const S2&, const S2&)
  41 {return true;}
  42
  43 struct X1 { };
  44 struct X2
  45 {
  46   X2(const X1&) {}
  47   X2() {}
  48 };
  49
  50 struct predicate
  51 {
  52   bool
  53   operator()(const X1&, const X1&)
  54   {return true;}
  55
  56   bool
  57   operator()(const X2&, const X2&)
  58   {return true;}
  59 };
  60
  61 random_access_iterator_wrapper<S2>
  62 test1(input_iterator_wrapper<S1>& s1, random_access_iterator_wrapper<S2>& s2)
  63 { return std::partial_sort_copy(s1, s1, s2, s2); }
  64
  65 random_access_iterator_wrapper<X2>
  66 test2(input_iterator_wrapper<X1>& x1, random_access_iterator_wrapper<X2>& x2)
  67 { return std::partial_sort_copy(x1, x1, x2, x2, predicate()); }