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
9// <forward_list>
10
11// template <class InputIterator>
12// forward_list(InputIterator first, InputIterator last,
13// const allocator_type& a); // constexpr since C++26
14
15#include <forward_list>
16#include <cassert>
17#include <iterator>
18
19#include "test_macros.h"
20#include "test_allocator.h"
21#include "test_iterators.h"
22#include "min_allocator.h"
23
24TEST_CONSTEXPR_CXX26 bool test() {
25 {
26 typedef int T;
27 typedef test_allocator<T> A;
28 typedef std::forward_list<T, A> C;
29 typedef cpp17_input_iterator<const T*> I;
30 const T t[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
31 C c(I(std::begin(t)), I(std::end(t)), A(13));
32 int n = 0;
33 for (C::const_iterator i = c.begin(), e = c.end(); i != e; ++i, ++n)
34 assert(*i == n);
35 assert(n == std::end(t) - std::begin(t));
36 assert(c.get_allocator() == A(13));
37 }
38#if TEST_STD_VER >= 11
39 {
40 typedef int T;
41 typedef min_allocator<T> A;
42 typedef std::forward_list<T, A> C;
43 typedef cpp17_input_iterator<const T*> I;
44 const T t[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
45 C c(I(std::begin(t)), I(std::end(t)), A());
46 int n = 0;
47 for (C::const_iterator i = c.begin(), e = c.end(); i != e; ++i, ++n)
48 assert(*i == n);
49 assert(n == std::end(t) - std::begin(t));
50 assert(c.get_allocator() == A());
51 }
52#endif
53
54 return true;
55}
56
57int main(int, char**) {
58 assert(test());
59#if TEST_STD_VER >= 26
60 static_assert(test());
61#endif
62
63 return 0;
64}
65

source code of libcxx/test/std/containers/sequences/forwardlist/forwardlist.cons/range_alloc.pass.cpp