1 // { dg-options "-std=gnu++0x" }
2 // 2005-01-15 Douglas Gregor <dgregor@cs.indiana.edu>
4 // Copyright (C) 2005, 2009 Free Software Foundation, Inc.
6 // This file is part of the GNU ISO C++ Library. This library is free
7 // software; you can redistribute it and/or modify it under the
8 // terms of the GNU General Public License as published by the
9 // Free Software Foundation; either version 3, or (at your option)
12 // This library is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 // GNU General Public License for more details.
17 // You should have received a copy of the GNU General Public License along
18 // with this library; see the file COPYING3. If not see
19 // <http://www.gnu.org/licenses/>.
21 // 20.7.15 polymorphic function object wrapper
23 #include <testsuite_hooks.h>
24 #include <testsuite_tr1.h>
26 using namespace __gnu_test;
28 bool test __attribute__((unused)) = true;
30 // Put nearly-matching function pointers into function<> wrappers
35 function<int(float)> f1(truncate_double);
44 function<int(float)> f2(f1);
48 VERIFY( f1(3.1f) == 3 );
49 VERIFY( f2(3.1f) == 3 );
59 VERIFY( f1(3.1f) == 3 );
61 // Assignment from a function pointer
63 VERIFY( f2(3.1f) == 3 );
65 // target_type and target() functions
66 const function<int(float)>& f1c = f1;
67 VERIFY( typeid(long(*)(double)) == f1.target_type() );
68 VERIFY( f2.target<long(*)(double)>() != 0 );
69 VERIFY( *f2.target<long(*)(double)>() == &truncate_double );
70 VERIFY( f1c.target<long(*)(double)>() != 0 );
71 VERIFY( *f1c.target<long(*)(double)>() == &truncate_double );