1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8// UNSUPPORTED: c++03
9
10// <vector>
11
12// vector()
13// noexcept(is_nothrow_default_constructible<allocator_type>::value);
14
15// This *was* a conforming extension, but it was adopted in N4258.
16
17
18#include <vector>
19#include <cassert>
20
21#include "test_macros.h"
22#include "MoveOnly.h"
23#include "test_allocator.h"
24
25template <class T>
26struct some_alloc
27{
28 typedef T value_type;
29 some_alloc(const some_alloc&);
30 void allocate(std::size_t);
31};
32
33TEST_CONSTEXPR_CXX20 bool tests() {
34 {
35 typedef std::vector<MoveOnly> C;
36 static_assert(std::is_nothrow_default_constructible<C>::value, "");
37 }
38 {
39 typedef std::vector<MoveOnly, test_allocator<MoveOnly>> C;
40 static_assert(std::is_nothrow_default_constructible<C>::value, "");
41 }
42 {
43 typedef std::vector<MoveOnly, other_allocator<MoveOnly>> C;
44 static_assert(!std::is_nothrow_default_constructible<C>::value, "");
45 }
46 {
47 typedef std::vector<MoveOnly, some_alloc<MoveOnly>> C;
48 static_assert(!std::is_nothrow_default_constructible<C>::value, "");
49 }
50
51 return true;
52}
53
54int main(int, char**)
55{
56 tests();
57#if TEST_STD_VER > 17
58 static_assert(tests());
59#endif
60 return 0;
61}
62

source code of libcxx/test/std/containers/sequences/vector/vector.cons/default_noexcept.pass.cpp