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 // XFAIL: LIBCXX-AIX-FIXME 10 11 // <string> 12 13 // basic_string<charT,traits,Allocator>& 14 // insert(size_type pos, string_view sv); // constexpr since C++20 15 16 #include <string> 17 #include <stdexcept> 18 #include <cassert> 19 20 #include "test_macros.h" 21 #include "min_allocator.h" 22 23 template <class S, class SV> 24 TEST_CONSTEXPR_CXX20 void 25 test(S s, typename S::size_type pos, SV sv, S expected) 26 { 27 const typename S::size_type old_size = s.size(); 28 S s0 = s; 29 if (pos <= old_size) 30 { 31 s.insert(pos, sv); 32 LIBCPP_ASSERT(s.__invariants()); 33 assert(s == expected); 34 } 35 #ifndef TEST_HAS_NO_EXCEPTIONS 36 else if (!TEST_IS_CONSTANT_EVALUATED) 37 { 38 try 39 { 40 s.insert(pos, sv); 41 assert(false); 42 } 43 catch (std::out_of_range&) 44 { 45 assert(pos > old_size); 46 assert(s == s0); 47 } 48 } 49 #endif 50 } 51 52 TEST_CONSTEXPR_CXX20 bool test() { 53 { 54 typedef std::string S; 55 typedef std::string_view SV; 56 test(S(""), 0, SV(""), S("")); 57 test(S(""), 0, SV("12345"), S("12345")); 58 test(S(""), 0, SV("1234567890"), S("1234567890")); 59 test(S(""), 0, SV("12345678901234567890"), S("12345678901234567890")); 60 test(S(""), 1, SV(""), S("can't happen")); 61 test(S(""), 1, SV("12345"), S("can't happen")); 62 test(S(""), 1, SV("1234567890"), S("can't happen")); 63 test(S(""), 1, SV("12345678901234567890"), S("can't happen")); 64 test(S("abcde"), 0, SV(""), S("abcde")); 65 test(S("abcde"), 0, SV("12345"), S("12345abcde")); 66 test(S("abcde"), 0, SV("1234567890"), S("1234567890abcde")); 67 test(S("abcde"), 0, SV("12345678901234567890"), S("12345678901234567890abcde")); 68 test(S("abcde"), 1, SV(""), S("abcde")); 69 test(S("abcde"), 1, SV("12345"), S("a12345bcde")); 70 test(S("abcde"), 1, SV("1234567890"), S("a1234567890bcde")); 71 test(S("abcde"), 1, SV("12345678901234567890"), S("a12345678901234567890bcde")); 72 test(S("abcde"), 2, SV(""), S("abcde")); 73 test(S("abcde"), 2, SV("12345"), S("ab12345cde")); 74 test(S("abcde"), 2, SV("1234567890"), S("ab1234567890cde")); 75 test(S("abcde"), 2, SV("12345678901234567890"), S("ab12345678901234567890cde")); 76 test(S("abcde"), 4, SV(""), S("abcde")); 77 test(S("abcde"), 4, SV("12345"), S("abcd12345e")); 78 test(S("abcde"), 4, SV("1234567890"), S("abcd1234567890e")); 79 test(S("abcde"), 4, SV("12345678901234567890"), S("abcd12345678901234567890e")); 80 test(S("abcde"), 5, SV(""), S("abcde")); 81 test(S("abcde"), 5, SV("12345"), S("abcde12345")); 82 test(S("abcde"), 5, SV("1234567890"), S("abcde1234567890")); 83 test(S("abcde"), 5, SV("12345678901234567890"), S("abcde12345678901234567890")); 84 test(S("abcde"), 6, SV(""), S("can't happen")); 85 test(S("abcde"), 6, SV("12345"), S("can't happen")); 86 test(S("abcde"), 6, SV("1234567890"), S("can't happen")); 87 test(S("abcde"), 6, SV("12345678901234567890"), S("can't happen")); 88 test(S("abcdefghij"), 0, SV(""), S("abcdefghij")); 89 test(S("abcdefghij"), 0, SV("12345"), S("12345abcdefghij")); 90 test(S("abcdefghij"), 0, SV("1234567890"), S("1234567890abcdefghij")); 91 test(S("abcdefghij"), 0, SV("12345678901234567890"), S("12345678901234567890abcdefghij")); 92 test(S("abcdefghij"), 1, SV(""), S("abcdefghij")); 93 test(S("abcdefghij"), 1, SV("12345"), S("a12345bcdefghij")); 94 test(S("abcdefghij"), 1, SV("1234567890"), S("a1234567890bcdefghij")); 95 test(S("abcdefghij"), 1, SV("12345678901234567890"), S("a12345678901234567890bcdefghij")); 96 test(S("abcdefghij"), 5, SV(""), S("abcdefghij")); 97 test(S("abcdefghij"), 5, SV("12345"), S("abcde12345fghij")); 98 test(S("abcdefghij"), 5, SV("1234567890"), S("abcde1234567890fghij")); 99 test(S("abcdefghij"), 5, SV("12345678901234567890"), S("abcde12345678901234567890fghij")); 100 test(S("abcdefghij"), 9, SV(""), S("abcdefghij")); 101 test(S("abcdefghij"), 9, SV("12345"), S("abcdefghi12345j")); 102 test(S("abcdefghij"), 9, SV("1234567890"), S("abcdefghi1234567890j")); 103 test(S("abcdefghij"), 9, SV("12345678901234567890"), S("abcdefghi12345678901234567890j")); 104 test(S("abcdefghij"), 10, SV(""), S("abcdefghij")); 105 test(S("abcdefghij"), 10, SV("12345"), S("abcdefghij12345")); 106 test(S("abcdefghij"), 10, SV("1234567890"), S("abcdefghij1234567890")); 107 test(S("abcdefghij"), 10, SV("12345678901234567890"), S("abcdefghij12345678901234567890")); 108 test(S("abcdefghij"), 11, SV(""), S("can't happen")); 109 test(S("abcdefghij"), 11, SV("12345"), S("can't happen")); 110 test(S("abcdefghij"), 11, SV("1234567890"), S("can't happen")); 111 test(S("abcdefghij"), 11, SV("12345678901234567890"), S("can't happen")); 112 test(S("abcdefghijklmnopqrst"), 0, SV(""), S("abcdefghijklmnopqrst")); 113 test(S("abcdefghijklmnopqrst"), 0, SV("12345"), S("12345abcdefghijklmnopqrst")); 114 test(S("abcdefghijklmnopqrst"), 0, SV("1234567890"), S("1234567890abcdefghijklmnopqrst")); 115 test(S("abcdefghijklmnopqrst"), 0, SV("12345678901234567890"), S("12345678901234567890abcdefghijklmnopqrst")); 116 test(S("abcdefghijklmnopqrst"), 1, SV(""), S("abcdefghijklmnopqrst")); 117 test(S("abcdefghijklmnopqrst"), 1, SV("12345"), S("a12345bcdefghijklmnopqrst")); 118 test(S("abcdefghijklmnopqrst"), 1, SV("1234567890"), S("a1234567890bcdefghijklmnopqrst")); 119 test(S("abcdefghijklmnopqrst"), 1, SV("12345678901234567890"), S("a12345678901234567890bcdefghijklmnopqrst")); 120 test(S("abcdefghijklmnopqrst"), 10, SV(""), S("abcdefghijklmnopqrst")); 121 test(S("abcdefghijklmnopqrst"), 10, SV("12345"), S("abcdefghij12345klmnopqrst")); 122 test(S("abcdefghijklmnopqrst"), 10, SV("1234567890"), S("abcdefghij1234567890klmnopqrst")); 123 test(S("abcdefghijklmnopqrst"), 10, SV("12345678901234567890"), S("abcdefghij12345678901234567890klmnopqrst")); 124 test(S("abcdefghijklmnopqrst"), 19, SV(""), S("abcdefghijklmnopqrst")); 125 test(S("abcdefghijklmnopqrst"), 19, SV("12345"), S("abcdefghijklmnopqrs12345t")); 126 test(S("abcdefghijklmnopqrst"), 19, SV("1234567890"), S("abcdefghijklmnopqrs1234567890t")); 127 test(S("abcdefghijklmnopqrst"), 19, SV("12345678901234567890"), S("abcdefghijklmnopqrs12345678901234567890t")); 128 test(S("abcdefghijklmnopqrst"), 20, SV(""), S("abcdefghijklmnopqrst")); 129 test(S("abcdefghijklmnopqrst"), 20, SV("12345"), S("abcdefghijklmnopqrst12345")); 130 test(S("abcdefghijklmnopqrst"), 20, SV("1234567890"), S("abcdefghijklmnopqrst1234567890")); 131 test(S("abcdefghijklmnopqrst"), 20, SV("12345678901234567890"), S("abcdefghijklmnopqrst12345678901234567890")); 132 test(S("abcdefghijklmnopqrst"), 21, SV(""), S("can't happen")); 133 test(S("abcdefghijklmnopqrst"), 21, SV("12345"), S("can't happen")); 134 test(S("abcdefghijklmnopqrst"), 21, SV("1234567890"), S("can't happen")); 135 test(S("abcdefghijklmnopqrst"), 21, SV("12345678901234567890"), S("can't happen")); 136 } 137 #if TEST_STD_VER >= 11 138 { 139 typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S; 140 typedef std::string_view SV; 141 test(S(""), 0, SV(""), S("")); 142 test(S(""), 0, SV("12345"), S("12345")); 143 test(S(""), 0, SV("1234567890"), S("1234567890")); 144 test(S(""), 0, SV("12345678901234567890"), S("12345678901234567890")); 145 test(S(""), 1, SV(""), S("can't happen")); 146 test(S(""), 1, SV("12345"), S("can't happen")); 147 test(S(""), 1, SV("1234567890"), S("can't happen")); 148 test(S(""), 1, SV("12345678901234567890"), S("can't happen")); 149 test(S("abcde"), 0, SV(""), S("abcde")); 150 test(S("abcde"), 0, SV("12345"), S("12345abcde")); 151 test(S("abcde"), 0, SV("1234567890"), S("1234567890abcde")); 152 test(S("abcde"), 0, SV("12345678901234567890"), S("12345678901234567890abcde")); 153 test(S("abcde"), 1, SV(""), S("abcde")); 154 test(S("abcde"), 1, SV("12345"), S("a12345bcde")); 155 test(S("abcde"), 1, SV("1234567890"), S("a1234567890bcde")); 156 test(S("abcde"), 1, SV("12345678901234567890"), S("a12345678901234567890bcde")); 157 test(S("abcde"), 2, SV(""), S("abcde")); 158 test(S("abcde"), 2, SV("12345"), S("ab12345cde")); 159 test(S("abcde"), 2, SV("1234567890"), S("ab1234567890cde")); 160 test(S("abcde"), 2, SV("12345678901234567890"), S("ab12345678901234567890cde")); 161 test(S("abcde"), 4, SV(""), S("abcde")); 162 test(S("abcde"), 4, SV("12345"), S("abcd12345e")); 163 test(S("abcde"), 4, SV("1234567890"), S("abcd1234567890e")); 164 test(S("abcde"), 4, SV("12345678901234567890"), S("abcd12345678901234567890e")); 165 test(S("abcde"), 5, SV(""), S("abcde")); 166 test(S("abcde"), 5, SV("12345"), S("abcde12345")); 167 test(S("abcde"), 5, SV("1234567890"), S("abcde1234567890")); 168 test(S("abcde"), 5, SV("12345678901234567890"), S("abcde12345678901234567890")); 169 test(S("abcde"), 6, SV(""), S("can't happen")); 170 test(S("abcde"), 6, SV("12345"), S("can't happen")); 171 test(S("abcde"), 6, SV("1234567890"), S("can't happen")); 172 test(S("abcde"), 6, SV("12345678901234567890"), S("can't happen")); 173 test(S("abcdefghij"), 0, SV(""), S("abcdefghij")); 174 test(S("abcdefghij"), 0, SV("12345"), S("12345abcdefghij")); 175 test(S("abcdefghij"), 0, SV("1234567890"), S("1234567890abcdefghij")); 176 test(S("abcdefghij"), 0, SV("12345678901234567890"), S("12345678901234567890abcdefghij")); 177 test(S("abcdefghij"), 1, SV(""), S("abcdefghij")); 178 test(S("abcdefghij"), 1, SV("12345"), S("a12345bcdefghij")); 179 test(S("abcdefghij"), 1, SV("1234567890"), S("a1234567890bcdefghij")); 180 test(S("abcdefghij"), 1, SV("12345678901234567890"), S("a12345678901234567890bcdefghij")); 181 test(S("abcdefghij"), 5, SV(""), S("abcdefghij")); 182 test(S("abcdefghij"), 5, SV("12345"), S("abcde12345fghij")); 183 test(S("abcdefghij"), 5, SV("1234567890"), S("abcde1234567890fghij")); 184 test(S("abcdefghij"), 5, SV("12345678901234567890"), S("abcde12345678901234567890fghij")); 185 test(S("abcdefghij"), 9, SV(""), S("abcdefghij")); 186 test(S("abcdefghij"), 9, SV("12345"), S("abcdefghi12345j")); 187 test(S("abcdefghij"), 9, SV("1234567890"), S("abcdefghi1234567890j")); 188 test(S("abcdefghij"), 9, SV("12345678901234567890"), S("abcdefghi12345678901234567890j")); 189 test(S("abcdefghij"), 10, SV(""), S("abcdefghij")); 190 test(S("abcdefghij"), 10, SV("12345"), S("abcdefghij12345")); 191 test(S("abcdefghij"), 10, SV("1234567890"), S("abcdefghij1234567890")); 192 test(S("abcdefghij"), 10, SV("12345678901234567890"), S("abcdefghij12345678901234567890")); 193 test(S("abcdefghij"), 11, SV(""), S("can't happen")); 194 test(S("abcdefghij"), 11, SV("12345"), S("can't happen")); 195 test(S("abcdefghij"), 11, SV("1234567890"), S("can't happen")); 196 test(S("abcdefghij"), 11, SV("12345678901234567890"), S("can't happen")); 197 test(S("abcdefghijklmnopqrst"), 0, SV(""), S("abcdefghijklmnopqrst")); 198 test(S("abcdefghijklmnopqrst"), 0, SV("12345"), S("12345abcdefghijklmnopqrst")); 199 test(S("abcdefghijklmnopqrst"), 0, SV("1234567890"), S("1234567890abcdefghijklmnopqrst")); 200 test(S("abcdefghijklmnopqrst"), 0, SV("12345678901234567890"), S("12345678901234567890abcdefghijklmnopqrst")); 201 test(S("abcdefghijklmnopqrst"), 1, SV(""), S("abcdefghijklmnopqrst")); 202 test(S("abcdefghijklmnopqrst"), 1, SV("12345"), S("a12345bcdefghijklmnopqrst")); 203 test(S("abcdefghijklmnopqrst"), 1, SV("1234567890"), S("a1234567890bcdefghijklmnopqrst")); 204 test(S("abcdefghijklmnopqrst"), 1, SV("12345678901234567890"), S("a12345678901234567890bcdefghijklmnopqrst")); 205 test(S("abcdefghijklmnopqrst"), 10, SV(""), S("abcdefghijklmnopqrst")); 206 test(S("abcdefghijklmnopqrst"), 10, SV("12345"), S("abcdefghij12345klmnopqrst")); 207 test(S("abcdefghijklmnopqrst"), 10, SV("1234567890"), S("abcdefghij1234567890klmnopqrst")); 208 test(S("abcdefghijklmnopqrst"), 10, SV("12345678901234567890"), S("abcdefghij12345678901234567890klmnopqrst")); 209 test(S("abcdefghijklmnopqrst"), 19, SV(""), S("abcdefghijklmnopqrst")); 210 test(S("abcdefghijklmnopqrst"), 19, SV("12345"), S("abcdefghijklmnopqrs12345t")); 211 test(S("abcdefghijklmnopqrst"), 19, SV("1234567890"), S("abcdefghijklmnopqrs1234567890t")); 212 test(S("abcdefghijklmnopqrst"), 19, SV("12345678901234567890"), S("abcdefghijklmnopqrs12345678901234567890t")); 213 test(S("abcdefghijklmnopqrst"), 20, SV(""), S("abcdefghijklmnopqrst")); 214 test(S("abcdefghijklmnopqrst"), 20, SV("12345"), S("abcdefghijklmnopqrst12345")); 215 test(S("abcdefghijklmnopqrst"), 20, SV("1234567890"), S("abcdefghijklmnopqrst1234567890")); 216 test(S("abcdefghijklmnopqrst"), 20, SV("12345678901234567890"), S("abcdefghijklmnopqrst12345678901234567890")); 217 test(S("abcdefghijklmnopqrst"), 21, SV(""), S("can't happen")); 218 test(S("abcdefghijklmnopqrst"), 21, SV("12345"), S("can't happen")); 219 test(S("abcdefghijklmnopqrst"), 21, SV("1234567890"), S("can't happen")); 220 test(S("abcdefghijklmnopqrst"), 21, SV("12345678901234567890"), S("can't happen")); 221 } 222 #endif 223 224 { // test inserting into self 225 typedef std::string S; 226 S s_short = "123/"; 227 S s_long = "Lorem ipsum dolor sit amet, consectetur/"; 228 229 s_short.insert(0, s_short.c_str()); 230 assert(s_short == "123/123/"); 231 s_short.insert(0, s_short.c_str()); 232 assert(s_short == "123/123/123/123/"); 233 s_short.insert(0, s_short.c_str()); 234 assert(s_short == "123/123/123/123/123/123/123/123/"); 235 236 s_long.insert(0, s_long.c_str()); 237 assert(s_long == "Lorem ipsum dolor sit amet, consectetur/Lorem ipsum dolor sit amet, consectetur/"); 238 } 239 240 return true; 241 } 242 243 int main(int, char**) 244 { 245 test(); 246 #if TEST_STD_VER > 17 247 static_assert(test()); 248 #endif 249 250 return 0; 251 } 252