1 // 2005-01-15 Douglas Gregor <dgregor@cs.indiana.edu>
3 // Copyright (C) 2005-2023 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 // 3.7.2 polymorphic function object wrapper
21 #include <tr1/functional>
22 #include <testsuite_hooks.h>
23 #include <testsuite_tr1.h>
25 using namespace __gnu_test
;
29 struct noncopyable_function_object_type
31 noncopyable_function_object_type(secret
) {}
33 int operator()() const { return 42; }
34 int operator()() { return 17; }
37 noncopyable_function_object_type();
38 noncopyable_function_object_type(const noncopyable_function_object_type
&);
39 void operator=(const noncopyable_function_object_type
&);
42 // Put reference_wrappers into function<> wrappers
45 using std::tr1::function
;
50 noncopyable_function_object_type
x(password
);
52 function
<int()> f(ref(x
));
56 VERIFY( f
.target_type() == typeid(noncopyable_function_object_type
) );
57 VERIFY( f
.target
<noncopyable_function_object_type
>() == &x
);
60 function
<int()> g
= f
;
64 VERIFY( g
.target_type() == typeid(noncopyable_function_object_type
) );
65 VERIFY( g
.target
<noncopyable_function_object_type
>() == &x
);
68 function
<int()> h
= cref(x
);
72 VERIFY( h
.target_type() == typeid(noncopyable_function_object_type
) );
73 VERIFY( h
.target
<const noncopyable_function_object_type
>() == &x
);
74 VERIFY( h
.target
<const noncopyable_function_object_type
>() == &x
);
76 const function
<int()>& hc
= h
;
77 VERIFY( h
.target
<noncopyable_function_object_type
>() == 0 );
78 VERIFY( hc
.target
<noncopyable_function_object_type
>() == &x
);