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// <string>
10
11// basic_string<charT,traits,Allocator>&
12// insert(size_type pos, size_type n, charT c); // constexpr since C++20
13
14#include <string>
15#include <stdexcept>
16#include <cassert>
17
18#include "test_macros.h"
19#include "min_allocator.h"
20#include "asan_testing.h"
21
22template <class S>
23TEST_CONSTEXPR_CXX20 void
24test(S s, typename S::size_type pos, typename S::size_type n, typename S::value_type str, S expected) {
25 const typename S::size_type old_size = s.size();
26 S s0 = s;
27 if (pos <= old_size) {
28 s.insert(pos, n, str);
29 LIBCPP_ASSERT(s.__invariants());
30 assert(s == expected);
31 LIBCPP_ASSERT(is_string_asan_correct(s));
32 }
33#ifndef TEST_HAS_NO_EXCEPTIONS
34 else if (!TEST_IS_CONSTANT_EVALUATED) {
35 try {
36 s.insert(pos, n, str);
37 assert(false);
38 } catch (std::out_of_range&) {
39 assert(pos > old_size);
40 assert(s == s0);
41 }
42 }
43#endif
44}
45
46template <class S>
47TEST_CONSTEXPR_CXX20 void test_string() {
48 test(S(""), 0, 0, '1', S(""));
49 test(S(""), 0, 5, '1', S("11111"));
50 test(S(""), 0, 10, '1', S("1111111111"));
51 test(S(""), 0, 20, '1', S("11111111111111111111"));
52 test(S(""), 1, 0, '1', S("can't happen"));
53 test(S(""), 1, 5, '1', S("can't happen"));
54 test(S(""), 1, 10, '1', S("can't happen"));
55 test(S(""), 1, 20, '1', S("can't happen"));
56 test(S("abcde"), 0, 0, '1', S("abcde"));
57 test(S("abcde"), 0, 5, '1', S("11111abcde"));
58 test(S("abcde"), 0, 10, '1', S("1111111111abcde"));
59 test(S("abcde"), 0, 20, '1', S("11111111111111111111abcde"));
60 test(S("abcde"), 1, 0, '1', S("abcde"));
61 test(S("abcde"), 1, 5, '1', S("a11111bcde"));
62 test(S("abcde"), 1, 10, '1', S("a1111111111bcde"));
63 test(S("abcde"), 1, 20, '1', S("a11111111111111111111bcde"));
64 test(S("abcde"), 2, 0, '1', S("abcde"));
65 test(S("abcde"), 2, 5, '1', S("ab11111cde"));
66 test(S("abcde"), 2, 10, '1', S("ab1111111111cde"));
67 test(S("abcde"), 2, 20, '1', S("ab11111111111111111111cde"));
68 test(S("abcde"), 4, 0, '1', S("abcde"));
69 test(S("abcde"), 4, 5, '1', S("abcd11111e"));
70 test(S("abcde"), 4, 10, '1', S("abcd1111111111e"));
71 test(S("abcde"), 4, 20, '1', S("abcd11111111111111111111e"));
72 test(S("abcde"), 5, 0, '1', S("abcde"));
73 test(S("abcde"), 5, 5, '1', S("abcde11111"));
74 test(S("abcde"), 5, 10, '1', S("abcde1111111111"));
75 test(S("abcde"), 5, 20, '1', S("abcde11111111111111111111"));
76 test(S("abcde"), 6, 0, '1', S("can't happen"));
77 test(S("abcde"), 6, 5, '1', S("can't happen"));
78 test(S("abcde"), 6, 10, '1', S("can't happen"));
79 test(S("abcde"), 6, 20, '1', S("can't happen"));
80 test(S("abcdefghij"), 0, 0, '1', S("abcdefghij"));
81 test(S("abcdefghij"), 0, 5, '1', S("11111abcdefghij"));
82 test(S("abcdefghij"), 0, 10, '1', S("1111111111abcdefghij"));
83 test(S("abcdefghij"), 0, 20, '1', S("11111111111111111111abcdefghij"));
84 test(S("abcdefghij"), 1, 0, '1', S("abcdefghij"));
85 test(S("abcdefghij"), 1, 5, '1', S("a11111bcdefghij"));
86 test(S("abcdefghij"), 1, 10, '1', S("a1111111111bcdefghij"));
87 test(S("abcdefghij"), 1, 20, '1', S("a11111111111111111111bcdefghij"));
88 test(S("abcdefghij"), 5, 0, '1', S("abcdefghij"));
89 test(S("abcdefghij"), 5, 5, '1', S("abcde11111fghij"));
90 test(S("abcdefghij"), 5, 10, '1', S("abcde1111111111fghij"));
91 test(S("abcdefghij"), 5, 20, '1', S("abcde11111111111111111111fghij"));
92 test(S("abcdefghij"), 9, 0, '1', S("abcdefghij"));
93 test(S("abcdefghij"), 9, 5, '1', S("abcdefghi11111j"));
94 test(S("abcdefghij"), 9, 10, '1', S("abcdefghi1111111111j"));
95 test(S("abcdefghij"), 9, 20, '1', S("abcdefghi11111111111111111111j"));
96 test(S("abcdefghij"), 10, 0, '1', S("abcdefghij"));
97 test(S("abcdefghij"), 10, 5, '1', S("abcdefghij11111"));
98 test(S("abcdefghij"), 10, 10, '1', S("abcdefghij1111111111"));
99 test(S("abcdefghij"), 10, 20, '1', S("abcdefghij11111111111111111111"));
100 test(S("abcdefghij"), 11, 0, '1', S("can't happen"));
101 test(S("abcdefghij"), 11, 5, '1', S("can't happen"));
102 test(S("abcdefghij"), 11, 10, '1', S("can't happen"));
103 test(S("abcdefghij"), 11, 20, '1', S("can't happen"));
104 test(S("abcdefghijklmnopqrst"), 0, 0, '1', S("abcdefghijklmnopqrst"));
105 test(S("abcdefghijklmnopqrst"), 0, 5, '1', S("11111abcdefghijklmnopqrst"));
106 test(S("abcdefghijklmnopqrst"), 0, 10, '1', S("1111111111abcdefghijklmnopqrst"));
107 test(S("abcdefghijklmnopqrst"), 0, 20, '1', S("11111111111111111111abcdefghijklmnopqrst"));
108 test(S("abcdefghijklmnopqrst"), 1, 0, '1', S("abcdefghijklmnopqrst"));
109 test(S("abcdefghijklmnopqrst"), 1, 5, '1', S("a11111bcdefghijklmnopqrst"));
110 test(S("abcdefghijklmnopqrst"), 1, 10, '1', S("a1111111111bcdefghijklmnopqrst"));
111 test(S("abcdefghijklmnopqrst"), 1, 20, '1', S("a11111111111111111111bcdefghijklmnopqrst"));
112 test(S("abcdefghijklmnopqrst"), 10, 0, '1', S("abcdefghijklmnopqrst"));
113 test(S("abcdefghijklmnopqrst"), 10, 5, '1', S("abcdefghij11111klmnopqrst"));
114 test(S("abcdefghijklmnopqrst"), 10, 10, '1', S("abcdefghij1111111111klmnopqrst"));
115 test(S("abcdefghijklmnopqrst"), 10, 20, '1', S("abcdefghij11111111111111111111klmnopqrst"));
116 test(S("abcdefghijklmnopqrst"), 19, 0, '1', S("abcdefghijklmnopqrst"));
117 test(S("abcdefghijklmnopqrst"), 19, 5, '1', S("abcdefghijklmnopqrs11111t"));
118 test(S("abcdefghijklmnopqrst"), 19, 10, '1', S("abcdefghijklmnopqrs1111111111t"));
119 test(S("abcdefghijklmnopqrst"), 19, 20, '1', S("abcdefghijklmnopqrs11111111111111111111t"));
120 test(S("abcdefghijklmnopqrst"), 20, 0, '1', S("abcdefghijklmnopqrst"));
121 test(S("abcdefghijklmnopqrst"), 20, 5, '1', S("abcdefghijklmnopqrst11111"));
122 test(S("abcdefghijklmnopqrst"), 20, 10, '1', S("abcdefghijklmnopqrst1111111111"));
123 test(S("abcdefghijklmnopqrst"), 20, 20, '1', S("abcdefghijklmnopqrst11111111111111111111"));
124 test(S("abcdefghijklmnopqrst"), 21, 0, '1', S("can't happen"));
125 test(S("abcdefghijklmnopqrst"), 21, 5, '1', S("can't happen"));
126 test(S("abcdefghijklmnopqrst"), 21, 10, '1', S("can't happen"));
127 test(S("abcdefghijklmnopqrst"), 21, 20, '1', S("can't happen"));
128}
129
130TEST_CONSTEXPR_CXX20 bool test() {
131 test_string<std::string>();
132#if TEST_STD_VER >= 11
133 test_string<std::basic_string<char, std::char_traits<char>, min_allocator<char>>>();
134 test_string<std::basic_string<char, std::char_traits<char>, safe_allocator<char>>>();
135#endif
136
137 return true;
138}
139
140int main(int, char**) {
141 test();
142#if TEST_STD_VER > 17
143 static_assert(test());
144#endif
145
146 return 0;
147}
148

source code of libcxx/test/std/strings/basic.string/string.modifiers/string_insert/size_size_char.pass.cpp