1// 2005-01-26 Douglas Gregor <doug.gregor -at- gmail.com>
2//
3// Copyright (C) 2005-2015 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// 3.4 function return types
21#include <tr1/functional>
22#include <tr1/type_traits>
23#include <testsuite_hooks.h>
24#include <testsuite_tr1.h>
25
26class X {};
27
28struct int_result_type { typedef int result_type; };
29
30struct int_result_of
31{
32  template<typename F> struct result { typedef int type; };
33};
34
35struct int_result_type_and_float_result_of
36{
37  typedef int result_type;
38  template<typename F> struct result { typedef float type; };
39};
40
41void test01()
42{
43  bool test __attribute__((unused)) = true;
44
45  using std::tr1::result_of;
46  using std::tr1::is_same;
47  using namespace __gnu_test;
48
49  typedef int (*func_ptr)(float, double);
50  typedef int (&func_ref)(float, double);
51  typedef int (::X::*mem_func_ptr)(float);
52  typedef int (::X::*mem_func_ptr_c)(float) const;
53  typedef int (::X::*mem_func_ptr_v)(float) volatile;
54  typedef int (::X::*mem_func_ptr_cv)(float) const volatile;
55
56  VERIFY((is_same<result_of<int_result_type(float)>::type, int>::value));
57  VERIFY((is_same<result_of<int_result_of(double)>::type, int>::value));
58  VERIFY((is_same<result_of<int_result_of(void)>::type, void>::value));
59  VERIFY((is_same<result_of<const int_result_of(double)>::type, int>::value));
60  VERIFY((is_same<result_of<volatile int_result_of(void)>::type, void>::value));
61  VERIFY((is_same<result_of<int_result_type_and_float_result_of(char)>::type, int>::value));
62  VERIFY((is_same<result_of<func_ptr(char, float)>::type, int>::value));
63  VERIFY((is_same<result_of<func_ref(char, float)>::type, int>::value));
64  VERIFY((is_same<result_of<mem_func_ptr(::X,char)>::type, int>::value));
65  VERIFY((is_same<result_of<mem_func_ptr_c(::X,char)>::type, int>::value));
66  VERIFY((is_same<result_of<mem_func_ptr_v(::X,char)>::type, int>::value));
67  VERIFY((is_same<result_of<mem_func_ptr_cv(::X,char)>::type, int>::value));
68}
69
70int main()
71{
72  test01();
73  return 0;
74}
75