libstdc++-v3/testsuite/20_util/tuple/element_access/get_neg.cc

   1 // Copyright (C) 2016-2024 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // { dg-options "-fno-show-column" }
  19 // { dg-do compile { target c++14 } }
  20
  21 #include <tuple>
  22
  23 void
  24 test01()
  25 {
  26   using test_type = std::tuple<>;
  27   test_type t;
  28   std::get<0>(t);                               // { dg-error "deleted" }
  29   std::get<0>(const_cast<const test_type&>(t)); // { dg-error "deleted" }
  30   std::get<0>(static_cast<test_type&&>(t));     // { dg-error "deleted" }
  31   std::get<5>(t);                               // { dg-error "deleted" }
  32   std::get<5>(const_cast<const test_type&>(t)); // { dg-error "deleted" }
  33   std::get<5>(static_cast<test_type&&>(t));     // { dg-error "deleted" }
  34 }
  35
  36 void
  37 test02()
  38 {
  39   using test_type = std::tuple<int>;
  40   test_type t;
  41   std::get<1>(t);                               // { dg-error "deleted" }
  42   std::get<1>(const_cast<const test_type&>(t)); // { dg-error "deleted" }
  43   std::get<1>(static_cast<test_type&&>(t));     // { dg-error "deleted" }
  44   std::get<5>(t);                               // { dg-error "deleted" }
  45   std::get<5>(const_cast<const test_type&>(t)); // { dg-error "deleted" }
  46   std::get<5>(static_cast<test_type&&>(t));     // { dg-error "deleted" }
  47 }
  48
  49 void
  50 test03()
  51 {
  52   using test_type = std::tuple<int, int, int, int>;
  53   test_type t;
  54   std::get<5>(t);                               // { dg-error "deleted" }
  55   std::get<5>(const_cast<const test_type&>(t)); // { dg-error "deleted" }
  56   std::get<5>(static_cast<test_type&&>(t));     // { dg-error "deleted" }
  57   std::get<6>(t);                               // { dg-error "deleted" }
  58   std::get<6>(const_cast<const test_type&>(t)); // { dg-error "deleted" }
  59   std::get<6>(static_cast<test_type&&>(t));     // { dg-error "deleted" }
  60 }
  61
  62 // { dg-error "tuple index must be in range" "" { target *-*-* } 0 }
  63 // { dg-prune-output "no type named 'type' in .*_Nth_type" }
  64 // { dg-prune-output "'__type_pack_element' index is out of range" }