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 | // UNSUPPORTED: c++03, c++11, c++14, c++17, c++20 |
10 | |
11 | // <flat_map> |
12 | |
13 | // iterator lower_bound(const key_type& k); |
14 | // const_iterator lower_bound(const key_type& k) const; |
15 | |
16 | #include <cassert> |
17 | #include <deque> |
18 | #include <flat_map> |
19 | #include <functional> |
20 | #include <utility> |
21 | |
22 | #include "MinSequenceContainer.h" |
23 | #include "test_macros.h" |
24 | #include "min_allocator.h" |
25 | |
26 | template <class KeyContainer, class ValueContainer> |
27 | void test() { |
28 | using Key = typename KeyContainer::value_type; |
29 | using Value = typename ValueContainer::value_type; |
30 | { |
31 | using M = std::flat_map<Key, Value, std::less<Key>, KeyContainer, ValueContainer>; |
32 | M m = {{1, 'a'}, {2, 'b'}, {4, 'd'}, {5, 'e'}, {8, 'h'}}; |
33 | ASSERT_SAME_TYPE(decltype(m.lower_bound(0)), typename M::iterator); |
34 | ASSERT_SAME_TYPE(decltype(std::as_const(m).lower_bound(0)), typename M::const_iterator); |
35 | assert(m.lower_bound(0) == m.begin()); |
36 | assert(m.lower_bound(1) == m.begin()); |
37 | assert(m.lower_bound(2) == m.begin() + 1); |
38 | assert(m.lower_bound(3) == m.begin() + 2); |
39 | assert(m.lower_bound(4) == m.begin() + 2); |
40 | assert(m.lower_bound(5) == m.begin() + 3); |
41 | assert(m.lower_bound(6) == m.begin() + 4); |
42 | assert(m.lower_bound(7) == m.begin() + 4); |
43 | assert(std::as_const(m).lower_bound(8) == m.begin() + 4); |
44 | assert(std::as_const(m).lower_bound(9) == m.end()); |
45 | } |
46 | { |
47 | using M = std::flat_map<Key, Value, std::greater<Key>, KeyContainer, ValueContainer>; |
48 | M m = {{1, 'a'}, {2, 'b'}, {4, 'd'}, {5, 'e'}, {8, 'h'}}; |
49 | ASSERT_SAME_TYPE(decltype(m.lower_bound(0)), typename M::iterator); |
50 | ASSERT_SAME_TYPE(decltype(std::as_const(m).lower_bound(0)), typename M::const_iterator); |
51 | assert(m.lower_bound(0) == m.end()); |
52 | assert(m.lower_bound(1) == m.begin() + 4); |
53 | assert(m.lower_bound(2) == m.begin() + 3); |
54 | assert(m.lower_bound(3) == m.begin() + 3); |
55 | assert(m.lower_bound(4) == m.begin() + 2); |
56 | assert(m.lower_bound(5) == m.begin() + 1); |
57 | assert(m.lower_bound(6) == m.begin() + 1); |
58 | assert(m.lower_bound(7) == m.begin() + 1); |
59 | assert(std::as_const(m).lower_bound(8) == m.begin()); |
60 | assert(std::as_const(m).lower_bound(9) == m.begin()); |
61 | } |
62 | } |
63 | |
64 | int main(int, char**) { |
65 | test<std::vector<int>, std::vector<char>>(); |
66 | test<std::deque<int>, std::vector<char>>(); |
67 | test<MinSequenceContainer<int>, MinSequenceContainer<char>>(); |
68 | test<std::vector<int, min_allocator<int>>, std::vector<char, min_allocator<char>>>(); |
69 | |
70 | return 0; |
71 | } |
72 | |