1 // { dg-options "-std=gnu++0x" }
2 // 2005-01-15 Douglas Gregor <dgregor@cs.indiana.edu>
4 // Copyright (C) 2005-2013 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 reference_wrappers to function pointers into function<> wrappers
37 int (*fptr)(float) = truncate_float;
39 function<int(float)> f1(ref(fptr));
48 VERIFY( f1(3.1f) == 3 );
50 // target_type and target() functions
51 const function<int(float)>& f1c = f1;
52 VERIFY( typeid(int(*)(float)) == f1.target_type() );
53 VERIFY( f1.target<int(*)(float)>() != 0 );
54 VERIFY( f1.target<int(*)(float)>() == &fptr );
55 VERIFY( f1c.target<int(*)(float)>() != 0 );
56 VERIFY( f1c.target<int(*)(float)>() == &fptr );
58 function<int(float)> f2(cref(fptr));
67 VERIFY( f2(3.1f) == 3 );
69 // target_type and target() functions
70 const function<int(float)>& f2c = f2;
71 VERIFY( typeid(int(*)(float)) == f2.target_type() );
72 VERIFY( f2.target<int(*)(float)>() == 0 );
73 VERIFY( f2.target<int(* const)(float)>() == &fptr );
74 VERIFY( f2c.target<int(*)(float)>() != 0 );
75 VERIFY( f2c.target<int(*)(float)>() == &fptr );