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// <vector>
10
11// void assign(size_type n, const_reference v);
12
13#include <vector>
14#include <algorithm>
15#include <cassert>
16#include "test_macros.h"
17#include "min_allocator.h"
18#include "asan_testing.h"
19#include "test_iterators.h"
20#if TEST_STD_VER >= 11
21#include "emplace_constructible.h"
22#include "container_test_types.h"
23#endif
24
25
26TEST_CONSTEXPR_CXX20 bool test() {
27#if TEST_STD_VER >= 11
28 int arr1[] = {42};
29 int arr2[] = {1, 101, 42};
30 {
31 using T = EmplaceConstructibleMoveableAndAssignable<int>;
32 using It = forward_iterator<int*>;
33 {
34 std::vector<T> v;
35 v.assign(It(arr1), It(std::end(arr1)));
36 assert(v[0].value == 42);
37 }
38 {
39 std::vector<T> v;
40 v.assign(It(arr2), It(std::end(arr2)));
41 assert(v[0].value == 1);
42 assert(v[1].value == 101);
43 assert(v[2].value == 42);
44 }
45 }
46 {
47 using T = EmplaceConstructibleMoveableAndAssignable<int>;
48 using It = cpp17_input_iterator<int*>;
49 {
50 std::vector<T> v;
51 v.assign(It(arr1), It(std::end(arr1)));
52 assert(v[0].copied == 0);
53 assert(v[0].value == 42);
54 }
55 {
56 std::vector<T> v;
57 v.assign(It(arr2), It(std::end(arr2)));
58 //assert(v[0].copied == 0);
59 assert(v[0].value == 1);
60 //assert(v[1].copied == 0);
61 assert(v[1].value == 101);
62 assert(v[2].copied == 0);
63 assert(v[2].value == 42);
64 }
65 }
66#endif
67
68 // Test with a number of elements in the source range that is greater than capacity
69 {
70 typedef forward_iterator<int*> It;
71
72 std::vector<int> dst(10);
73
74 std::size_t n = dst.capacity() * 2;
75 std::vector<int> src(n);
76
77 dst.assign(n: It(src.data()), val: It(src.data() + src.size()));
78 assert(dst == src);
79 }
80
81 return true;
82}
83
84int main(int, char**) {
85 test();
86#if TEST_STD_VER > 17
87 static_assert(test());
88#endif
89 return 0;
90}
91

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