1// { dg-options "-std=gnu++0x" }
2
3// Copyright (C) 2008, 2009, 2010 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 <functional>
21#include <type_traits>
22#include <testsuite_hooks.h>
23#include <testsuite_tr1.h>
24
25using namespace __gnu_test;
26
27bool test __attribute__((unused)) = true;
28
29struct X
30{
31  typedef int result_type;
32
33  X() : bar(17) {}
34
35  int foo(float x)                   { return truncate_float(x); }
36  int foo_c(float x)  const          { return truncate_float(x); }
37  int foo_v(float x)  volatile       { return truncate_float(x); }
38  int foo_cv(float x) const volatile { return truncate_float(x); }
39
40  int operator()(float x)
41  {
42    return foo(x) + 1;
43  }
44
45  int operator()(float x) const
46  {
47    return foo_c(x) + 2;
48  }
49
50  int bar;
51
52 private:
53  X(const X&);
54  X& operator=(const X&);
55};
56
57int seventeen() { return 17; }
58
59struct get_seventeen
60{
61  typedef int result_type;
62  int operator()() const { return 17; }
63};
64
65void test01()
66{
67  using std::ref;
68  using std::cref;
69
70  ::get_seventeen get_sev;
71  ::X x;
72
73  const float pi = 3.14;
74
75  // Functions
76  VERIFY(ref(truncate_float)(pi) == 3);
77  VERIFY(ref(seventeen)() == 17);
78
79  // Function pointers
80  VERIFY(cref(&truncate_float)(pi) == 3);
81  VERIFY(cref(&seventeen)() == 17);
82
83  // Function objects
84  VERIFY(ref(get_sev)() == 17);
85  VERIFY(cref(get_sev)() == 17);
86  VERIFY(ref(x)(pi) == 4);
87  VERIFY(cref(x)(pi) == 5);
88}
89
90int main()
91{
92  test01();
93  return 0;
94}
95