1 // 2005-01-15 Douglas Gregor <dgregor@cs.indiana.edu>
3 // Copyright (C) 2005-2013 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
;
27 bool test
__attribute__((unused
)) = true;
29 // Put function objects into function<> wrappers
32 using std::tr1::function
;
34 do_truncate_float_t truncate_float
;
36 function
<int(float)> f1(truncate_float
);
45 function
<int(float)> f2(f1
);
49 VERIFY( f1(3.1f
) == 3 );
50 VERIFY( f2(3.1f
) == 3 );
60 VERIFY( f1(3.1f
) == 3 );
62 // Assignment from a function pointer
63 f2
= do_truncate_float_t();
64 VERIFY( f2(3.1f
) == 3 );
66 // target_type and target() functions
67 const function
<int(float)>& f1c
= f1
;
68 VERIFY( typeid(do_truncate_float_t
) == f1
.target_type() );
69 VERIFY( f2
.target
<do_truncate_float_t
>() != 0 );
70 VERIFY( f1c
.target
<do_truncate_float_t
>() != 0 );
77 VERIFY( do_truncate_double_t::live_objects
== 0 );
78 VERIFY( do_truncate_float_t::live_objects
== 0 );