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 | // mapped_type& at(const key_type& k); |
14 | // const mapped_type& at(const key_type& k) const; |
15 | |
16 | #include <cassert> |
17 | #include <deque> |
18 | #include <flat_map> |
19 | #include <functional> |
20 | #include <stdexcept> |
21 | #include <vector> |
22 | |
23 | #include "MinSequenceContainer.h" |
24 | #include "min_allocator.h" |
25 | #include "test_macros.h" |
26 | |
27 | template <class KeyContainer, class ValueContainer> |
28 | void test() { |
29 | using P = std::pair<int, double>; |
30 | P ar[] = { |
31 | P(1, 1.5), |
32 | P(2, 2.5), |
33 | P(3, 3.5), |
34 | P(4, 4.5), |
35 | P(5, 5.5), |
36 | P(7, 7.5), |
37 | P(8, 8.5), |
38 | }; |
39 | const int one = 1; |
40 | { |
41 | std::flat_map<int, double, std::less<int>, KeyContainer, ValueContainer> m(ar, ar + sizeof(ar) / sizeof(ar[0])); |
42 | ASSERT_SAME_TYPE(decltype(m.at(one)), double&); |
43 | assert(m.size() == 7); |
44 | assert(m.at(one) == 1.5); |
45 | m.at(1) = -1.5; |
46 | assert(m.at(1) == -1.5); |
47 | assert(m.at(2) == 2.5); |
48 | assert(m.at(3) == 3.5); |
49 | assert(m.at(4) == 4.5); |
50 | assert(m.at(5) == 5.5); |
51 | #ifndef TEST_HAS_NO_EXCEPTIONS |
52 | try { |
53 | TEST_IGNORE_NODISCARD m.at(6); |
54 | assert(false); |
55 | } catch (std::out_of_range&) { |
56 | } |
57 | #endif |
58 | assert(m.at(7) == 7.5); |
59 | assert(m.at(8) == 8.5); |
60 | assert(m.size() == 7); |
61 | } |
62 | { |
63 | const std::flat_map<int, double, std::less<int>, KeyContainer, ValueContainer> m( |
64 | ar, ar + sizeof(ar) / sizeof(ar[0])); |
65 | ASSERT_SAME_TYPE(decltype(m.at(one)), const double&); |
66 | assert(m.size() == 7); |
67 | assert(m.at(one) == 1.5); |
68 | assert(m.at(2) == 2.5); |
69 | assert(m.at(3) == 3.5); |
70 | assert(m.at(4) == 4.5); |
71 | assert(m.at(5) == 5.5); |
72 | #ifndef TEST_HAS_NO_EXCEPTIONS |
73 | try { |
74 | TEST_IGNORE_NODISCARD m.at(6); |
75 | assert(false); |
76 | } catch (std::out_of_range&) { |
77 | } |
78 | #endif |
79 | assert(m.at(7) == 7.5); |
80 | assert(m.at(8) == 8.5); |
81 | assert(m.size() == 7); |
82 | } |
83 | } |
84 | |
85 | int main(int, char**) { |
86 | test<std::vector<int>, std::vector<double>>(); |
87 | test<std::deque<int>, std::vector<double>>(); |
88 | test<MinSequenceContainer<int>, MinSequenceContainer<double>>(); |
89 | test<std::vector<int, min_allocator<int>>, std::vector<double, min_allocator<double>>>(); |
90 | |
91 | return 0; |
92 | } |
93 | |