libstdc++-v3/testsuite/20_util/tuple/cons/explicit_construct.cc

   1 // { dg-do compile { target c++11 } }
   2
   3 // Copyright (C) 2015-2020 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10 //
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20
  21 #include <tuple>
  22 #include <utility>
  23 #include <memory>
  24
  25 struct Explicit
  26 {
  27   Explicit() = default;
  28   explicit Explicit(int) {}
  29 };
  30
  31 struct ExplicitDefault
  32 {
  33   explicit ExplicitDefault() {}
  34 };
  35
  36 struct ExplicitDefaultDefault
  37 {
  38   explicit ExplicitDefaultDefault() = default;
  39 };
  40
  41 std::tuple<int> f1a() {return {1};}
  42 std::tuple<int, int> f1b() {return {1,2};}
  43 std::tuple<int, int, int> f1c() {return {1,2,3};}
  44
  45 std::tuple<Explicit> f2_a()
  46 {return {1};} // { dg-error "could not convert" }
  47 std::tuple<Explicit, Explicit> f2_b()
  48 {return {1,2};} // { dg-error "could not convert" }
  49 std::tuple<Explicit, Explicit, Explicit> f2_c()
  50 {return {1,2,3};} // { dg-error "could not convert" }
  51
  52 std::tuple<long> f3_a() {return std::tuple<int>{1};}
  53 std::tuple<long, long> f3_b() {return std::tuple<int, int>{1,2};}
  54 std::tuple<long, long, long> f3_c() {return std::tuple<int, int, int>{1,2,3};}
  55
  56 std::tuple<Explicit> f4_a()
  57 {
  58   return std::tuple<int>{1};  // { dg-error "could not convert" }
  59 }
  60 std::tuple<Explicit, Explicit> f4_b()
  61 {
  62   return std::tuple<int, int>{1,2};  // { dg-error "could not convert" }
  63 }
  64 std::tuple<Explicit, Explicit, Explicit> f4_c()
  65 {
  66   return std::tuple<int, int,int>{1,2,3};  // { dg-error "could not convert" }
  67 }
  68
  69 std::tuple<long> f5_a() {return {1};}
  70 std::tuple<long, long> f5_b() {return {1,2};}
  71 std::tuple<long, long, long> f5_c() {return {1,2,3};}
  72
  73 std::tuple<ExplicitDefault> f6_a()
  74 {return {};} // { dg-error "could not convert" }
  75 std::tuple<ExplicitDefault, ExplicitDefault> f6_b()
  76 {return {};} // { dg-error "could not convert" }
  77 std::tuple<ExplicitDefault, ExplicitDefault, ExplicitDefault> f6_c()
  78 {return {};} // { dg-error "could not convert" }
  79 std::tuple<ExplicitDefault, int> f6_d()
  80 {return {};} // { dg-error "could not convert" }
  81
  82 std::tuple<ExplicitDefaultDefault> f7_a()
  83 {return {};} // { dg-error "could not convert" }
  84 std::tuple<ExplicitDefaultDefault, ExplicitDefaultDefault> f7_b()
  85 {return {};} // { dg-error "could not convert" }
  86 std::tuple<ExplicitDefaultDefault,
  87            ExplicitDefaultDefault,
  88            ExplicitDefaultDefault> f7_c()
  89 {return {};} // { dg-error "could not convert" }
  90
  91 std::tuple<int, int> fp1() {return std::pair<int, int>{1,2}; }
  92 std::tuple<long, long> fp2() {return std::pair<int, int>{1,2}; }
  93 std::tuple<Explicit, Explicit> fp3()
  94   {return std::pair<int, int>{1,2}; } // { dg-error "could not convert" }
  95
  96 std::tuple<int> v0_a{1};
  97 std::tuple<int, int> v0_b{1,2};
  98 std::tuple<int, int, int> v0_c{1,2,3};
  99
 100 std::tuple<Explicit> v1_a{1};
 101 std::tuple<Explicit, Explicit> v1_b{1,2};
 102 std::tuple<Explicit, Explicit, Explicit> v1_c{1,2,3};
 103
 104 std::tuple<Explicit> v2_a = {1}; // { dg-error "could not convert" }
 105 std::tuple<Explicit, Explicit> v2_b = {1,2}; // { dg-error "could not convert" }
 106 std::tuple<Explicit, Explicit, Explicit> v2_c = {1,2,3}; // { dg-error "could not convert" }
 107
 108 std::tuple<Explicit> v3_a{std::tuple<int>{1}};
 109 std::tuple<Explicit, Explicit> v3_b{std::tuple<int,int>{1,2}};
 110 std::tuple<Explicit, Explicit, Explicit> v3_c{std::tuple<int,int,int>{1,2,3}};
 111
 112 std::tuple<Explicit, Explicit> v4_a =
 113   std::tuple<int>{1}; // { dg-error "conversion" }
 114 std::tuple<Explicit, Explicit> v4_b =
 115   std::tuple<int,int>{1,2}; // { dg-error "conversion" }
 116 std::tuple<Explicit, Explicit, Explicit> v4_c =
 117   std::tuple<int,int,int>{1,2,3}; // { dg-error "conversion" }
 118
 119 std::tuple<long> v6_a{1};
 120 std::tuple<long, long> v6_b{1,2};
 121 std::tuple<long, long, long> v6_c{1,2,3};
 122
 123 std::tuple<long> v7_a = {1};
 124 std::tuple<long, long> v7_b = {1,2};
 125 std::tuple<long, long, long> v7_c = {1,2,3};
 126
 127 std::tuple<long> v8_a{std::tuple<int>{1}};
 128 std::tuple<long, long> v8_b{std::tuple<int,int>{1,2}};
 129 std::tuple<long, long, long> v8_c{std::tuple<int,int,int>{1,2,3}};
 130
 131 std::tuple<long> v9_a = std::tuple<int>{1};
 132 std::tuple<long, long> v9_b = std::tuple<int,int>{1,2};
 133 std::tuple<long, long, long> v9_c = std::tuple<int,int,int>{1,2,3};
 134
 135 std::tuple<Explicit> v10_a{v0_a};
 136 std::tuple<Explicit, Explicit> v10_b{v0_b};
 137 std::tuple<Explicit, Explicit, Explicit> v10_c{v0_c};
 138
 139 std::tuple<Explicit> v11_a = v0_a; // { dg-error "conversion" }
 140 std::tuple<Explicit, Explicit> v11_b = v0_b; // { dg-error "conversion" }
 141 std::tuple<Explicit, Explicit, Explicit> v11_c
 142   = v0_c; // { dg-error "conversion" }
 143
 144 std::tuple<long> v12_a{v0_a};
 145 std::tuple<long, long> v12_b{v0_b};
 146 std::tuple<long, long, long> v12_c{v0_c};
 147
 148 std::tuple<long> v13_a = v0_a;
 149 std::tuple<long, long> v13_b = v0_b;
 150 std::tuple<long, long, long> v13_c = v0_c;
 151
 152 std::tuple<int, int> v14{std::pair<int, int>{1,2}};
 153 std::tuple<long, long> v15{std::pair<int, int>{1,2}};
 154 std::tuple<Explicit, Explicit> v16{std::pair<int, int>{1,2}};
 155
 156 std::tuple<int, int> v17 = std::pair<int, int>{1,2};
 157 std::tuple<long, long> v18 = std::pair<int, int>{1,2};
 158 std::tuple<Explicit, Explicit> v19
 159   = std::pair<int, int>{1,2}; // { dg-error "conversion" }
 160
 161 std::pair<int, int> v20;
 162
 163 std::tuple<int, int> v21{v20};
 164 std::tuple<long, long> v22{v20};
 165 std::tuple<Explicit, Explicit> v23{v20};
 166
 167 std::tuple<int, int> v24 = v20;
 168 std::tuple<long, long> v25 = v20;
 169 std::tuple<Explicit, Explicit> v26 = v20; // { dg-error "conversion" }
 170
 171 std::tuple<int> v27_a{std::allocator_arg, std::allocator<int>{}, 1};
 172 std::tuple<int, int> v27_b{std::allocator_arg, std::allocator<int>{}, 1, 2};
 173 std::tuple<int, int, int> v27_c{std::allocator_arg, std::allocator<int>{}, 1,2,3};
 174
 175 std::tuple<long> v28_a{std::allocator_arg, std::allocator<int>{}, 1};
 176 std::tuple<long, long> v28_b{std::allocator_arg, std::allocator<int>{}, 1, 2};
 177 std::tuple<long, long, long>
 178   v28_c{std::allocator_arg, std::allocator<int>{}, 1,2,3};
 179
 180 std::tuple<Explicit> v29_a{std::allocator_arg, std::allocator<int>{}, 1};
 181 std::tuple<Explicit, Explicit>
 182   v29_b{std::allocator_arg, std::allocator<int>{}, 1, 2};
 183 std::tuple<Explicit, Explicit, Explicit>
 184   v29_c{std::allocator_arg, std::allocator<int>{}, 1,2,3};
 185
 186 std::tuple<int> v30_a = {std::allocator_arg, std::allocator<int>{}, 1};
 187 std::tuple<int, int> v30_b = {std::allocator_arg, std::allocator<int>{}, 1, 2};
 188 std::tuple<int, int, int> v30_c
 189   = {std::allocator_arg, std::allocator<int>{}, 1,2,3};
 190
 191 std::tuple<long> v31_a = {std::allocator_arg, std::allocator<int>{}, 1};
 192 std::tuple<long, long> v31_b = {std::allocator_arg, std::allocator<int>{}, 1, 2};
 193 std::tuple<long, long, long>
 194   v31_c{std::allocator_arg, std::allocator<int>{}, 1,2,3};
 195
 196 std::tuple<Explicit> v32_a
 197   = {std::allocator_arg, std::allocator<int>{ }, 1}; // { dg-error "could not convert" }
 198 std::tuple<Explicit, Explicit> v32_b
 199   = {std::allocator_arg, std::allocator<int>{}, 1, 2}; // { dg-error "could not convert" }
 200 std::tuple<Explicit, Explicit, Explicit> v32_c
 201   = {std::allocator_arg, std::allocator<int>{}, 1,2,3}; // { dg-error "could not convert" }
 202
 203 std::tuple<int, int> v33{std::allocator_arg, std::allocator<int>{},
 204   std::pair<int, int>{1, 2}};
 205
 206 std::tuple<long, long> v34{std::allocator_arg, std::allocator<int>{},
 207   std::pair<int, int>{1, 2}};
 208
 209 std::tuple<Explicit, Explicit>
 210   v35{std::allocator_arg, std::allocator<int>{}, std::pair<int, int>{1, 2}};
 211
 212 std::tuple<int, int> v36 = {std::allocator_arg, std::allocator<int>{},
 213   std::pair<int, int>{1, 2}};
 214
 215 std::tuple<long, long> v37 = {std::allocator_arg, std::allocator<int>{},
 216   std::pair<int, int>{1, 2}};
 217
 218 std::tuple<Explicit, Explicit> v38
 219 = {std::allocator_arg, std::allocator<int>{}, std::pair<int, int>{1, 2}}; // { dg-error "could not convert" }
 220
 221 std::tuple<int, int> v39{std::allocator_arg, std::allocator<int>{}, v20};
 222
 223 std::tuple<long, long> v40{std::allocator_arg, std::allocator<int>{}, v20};
 224
 225 std::tuple<Explicit, Explicit>
 226   v41{std::allocator_arg, std::allocator<int>{}, v20};
 227
 228 std::tuple<int, int> v42 = {std::allocator_arg, std::allocator<int>{}, v20};
 229
 230 std::tuple<long, long> v43 = {std::allocator_arg, std::allocator<int>{}, v20};
 231
 232 std::tuple<Explicit, Explicit> v44
 233 = {std::allocator_arg, std::allocator<int>{ }, v20}; // { dg-error "could not convert" }
 234 std::tuple<ExplicitDefault> v45_a{};
 235 std::tuple<ExplicitDefault, int> v45_b{};
 236
 237 std::tuple<ExplicitDefault> v46_a = {}; // { dg-error "could not convert" }
 238 std::tuple<ExplicitDefault, int> v46_b = {}; // { dg-error "could not convert" }
 239
 240 std::tuple<ExplicitDefaultDefault> v47_a{};
 241 std::tuple<ExplicitDefaultDefault, int> v47_b{};
 242
 243 std::tuple<ExplicitDefaultDefault> v48_a = {}; // { dg-error "could not convert" }
 244 std::tuple<ExplicitDefaultDefault, int> v48_b = { }; // { dg-error "could not convert" }
 245
 246
 247 struct DeletedCopy
 248 {
 249   DeletedCopy(int);
 250   DeletedCopy(const DeletedCopy&) = delete;
 251 };
 252
 253 std::tuple<DeletedCopy> v45{42};
 254 std::tuple<DeletedCopy> v46{std::allocator_arg,
 255     std::allocator<DeletedCopy>{}, 42};
 256
 257 struct Sanity
 258 {
 259   int v;
 260 };
 261
 262 std::tuple<int, Sanity> v47(3, {42});
 263 std::tuple<int, int, Sanity> v48(3, 4, {42});
 264 std::tuple<int, Sanity> v49(std::allocator_arg,
 265                             std::allocator<Sanity>{},
 266                             3, {42});
 267 std::tuple<int, int, Sanity> v50(std::allocator_arg,
 268                                  std::allocator<Sanity>{},
 269                                  3, 4, {42});
 270
 271 void f8_a(std::tuple<Explicit>) {}
 272 void f8_b(std::tuple<Explicit, Explicit>) {}
 273 void f8_c(std::tuple<Explicit, Explicit, Explicit>) {}
 274
 275 void f9_a(std::tuple<long>) {}
 276 void f9_b(std::tuple<long, long>) {}
 277 void f9_c(std::tuple<long, long, long>) {}
 278
 279 void f10_a(std::tuple<ExplicitDefault>) {}
 280 void f10_b(std::tuple<ExplicitDefault, int>) {}
 281
 282 void f11_a(std::tuple<ExplicitDefaultDefault>) {}
 283 void f11_b(std::tuple<ExplicitDefaultDefault, int>) {}
 284
 285 void test_arg_passing()
 286 {
 287   f8_a(v0_a); // { dg-error "could not convert" }
 288   f8_b(v0_b); // { dg-error "could not convert" }
 289   f8_c(v0_c); // { dg-error "could not convert" }
 290   f8_b(v20); // { dg-error "could not convert" }
 291
 292   f8_a(v1_a);
 293   f8_b(v1_b);
 294   f8_c(v1_c);
 295
 296   f8_a({1}); // { dg-error "could not convert" }
 297   f8_b({1,2}); // { dg-error "could not convert" }
 298   f8_c({1,2,3}); // { dg-error "could not convert" }
 299
 300   f8_a(std::tuple<Explicit>{});
 301   f8_b(std::tuple<Explicit, Explicit>{});
 302   f8_c(std::tuple<Explicit, Explicit, Explicit>{});
 303
 304   f8_a(std::tuple<int>{}); // { dg-error "could not convert" }
 305   f8_b(std::tuple<int, int>{}); // { dg-error "could not convert" }
 306   f8_c(std::tuple<int, int, int>{}); // { dg-error "could not convert" }
 307   f8_b(std::pair<int, int>{}); // { dg-error "could not convert" }
 308
 309   f9_a(v0_a);
 310   f9_b(v0_b);
 311   f9_c(v0_c);
 312   f9_b(v20);
 313
 314   f9_a(v6_a);
 315   f9_b(v6_b);
 316   f9_c(v6_c);
 317
 318   f9_a({1});
 319   f9_b({1,2});
 320   f9_c({1,2,3});
 321
 322   f9_a(std::tuple<int>{});
 323   f9_b(std::tuple<int, int>{});
 324   f9_c(std::tuple<int, int, int>{});
 325   f9_b(std::pair<int, int>{});
 326
 327   f9_a(std::tuple<long>{});
 328   f9_b(std::tuple<long, long>{});
 329   f9_c(std::tuple<long, long, long>{});
 330
 331   f10_a({}); // { dg-error "could not convert" }
 332   f10_b({}); // { dg-error "could not convert" }
 333   f11_a({}); // { dg-error "could not convert" }
 334   f11_b({}); // { dg-error "could not convert" }
 335
 336   f10_a(std::tuple<ExplicitDefault>{});
 337   f10_b(std::tuple<ExplicitDefault, int>{});
 338   f11_a(std::tuple<ExplicitDefaultDefault>{});
 339   f11_b(std::tuple<ExplicitDefaultDefault, int>{});
 340 }