1 // 2005-01-26 Douglas Gregor <doug.gregor -at- gmail.com>
3 // Copyright (C) 2005-2014 Free Software Foundation, Inc.
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)
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.
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/>.
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>
28 struct int_result_type
{ typedef int result_type
; };
32 template<typename F
> struct result
{ typedef int type
; };
35 struct int_result_type_and_float_result_of
37 typedef int result_type
;
38 template<typename F
> struct result
{ typedef float type
; };
43 bool test
__attribute__((unused
)) = true;
45 using std::tr1::result_of
;
46 using std::tr1::is_same
;
47 using namespace __gnu_test
;
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;
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
));