1 // Copyright (C) 2013-2020 Free Software Foundation, Inc.
2 //
3 // This file is part of the GNU ISO C++ Library. This library is free
4 // software; you can redistribute it and/or modify it under the
5 // terms of the GNU General Public License as published by the
6 // Free Software Foundation; either version 3, or (at your option)
7 // any later version.
8
9 // This library is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
13
14 // You should have received a copy of the GNU General Public License along
15 // with this library; see the file COPYING3. If not see
16 // <http://www.gnu.org/licenses/>.
17
18 // { dg-do compile { target c++11 } }
19
20 #include <set>
21 #include <testsuite_allocator.h>
22
23 struct T { int i; };
24
operator <(T l,T r)25 bool operator<(T l, T r) { return l.i < r.i; }
26
27 using Cmp = std::less<T>;
28
29 struct CmpThrow : Cmp { };
swap(CmpThrow &,CmpThrow &)30 void swap(CmpThrow&, CmpThrow&) noexcept(false) { }
31
32 using __gnu_test::propagating_allocator;
33
test01()34 void test01()
35 {
36 typedef std::allocator<T> alloc_type;
37 typedef std::set<T, Cmp, alloc_type> test_type;
38 test_type v1;
39 test_type v2;
40 // this is a GNU extension for std::allocator
41 static_assert( noexcept( v1 = std::move(v2) ), "Move assign cannot throw" );
42 static_assert( noexcept( v1.swap(v2) ), "Swap cannot throw" );
43 }
44
test02()45 void test02()
46 {
47 typedef std::allocator<T> alloc_type;
48 typedef std::set<T, CmpThrow, alloc_type> test_type;
49 test_type v1;
50 test_type v2;
51 static_assert( noexcept( v1 = std::move(v2) ), "Move assign cannot throw" );
52 static_assert( !noexcept( v1.swap(v2) ), "Swap can throw" );
53 }
54
test03()55 void test03()
56 {
57 typedef propagating_allocator<T, false> alloc_type;
58 typedef std::set<T, Cmp, alloc_type> test_type;
59 test_type v1(alloc_type(1));
60 test_type v2(alloc_type(2));
61 static_assert( !noexcept( v1 = std::move(v2) ), "Move assign can throw" );
62 static_assert( noexcept( v1.swap(v2) ), "Swap cannot throw" );
63 }
64
test04()65 void test04()
66 {
67 typedef propagating_allocator<T, true> alloc_type;
68 typedef std::set<T, Cmp, alloc_type> test_type;
69 test_type v1(alloc_type(1));
70 test_type v2(alloc_type(2));
71 static_assert( noexcept( v1 = std::move(v2) ), "Move assign cannot throw" );
72 static_assert( noexcept( v1.swap(v2) ), "Swap cannot throw" );
73 }
74