]>
git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/tr1/3_function_objects/function/1.cc
1 // 2005-01-15 Douglas Gregor <dgregor@cs.indiana.edu>
3 // Copyright (C) 2005-2016 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 // Operations on empty function<> objects
32 using std::tr1::function
;
33 using std::tr1::bad_function_call
;
35 // Default-construction
36 function
<int(float)> f1
;
37 VERIFY( ((bool)f1
== false) );
45 function
<int(float)> f2(f1
);
48 // Construct with NULL pointer
49 function
<int(float)> f3(0);
56 // Assignment to NULL pointer
65 // Invocation should throw bad_function_call
72 catch (bad_function_call
)
78 // target_type returns typeid(void)
79 VERIFY( f1
.target_type() == typeid(void) );
81 // target() always returns a NULL pointer
82 VERIFY( f1
.target
<int (*)(float)>() == 0);
84 // Check const version
85 const function
<int(float)>& f1c
= f1
;
86 VERIFY( f1c
.target
<int (*)(float)>() == 0 );