projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 42a4f53d | 1 | // Copyright (C) 2013-2019 Free Software Foundation, Inc. |
| d35d1958 PA |
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 | namespace assign_6 { | |
| 19 | ||
| 20 | int counter = 0; | |
| 21 | ||
| 22 | struct mixin_counter | |
| 23 | { | |
| 24 | mixin_counter() { ++counter; } | |
| 25 | mixin_counter(mixin_counter const&) { ++counter; } | |
| 26 | ~mixin_counter() { --counter; } | |
| 27 | }; | |
| 28 | ||
| 29 | struct value_type : private mixin_counter | |
| 30 | { | |
| 31 | value_type() = default; | |
| 32 | value_type(int) : state(1) { } | |
| 33 | value_type(std::initializer_list<char>, const char*) : state(2) { } | |
| 34 | int state = 0; | |
| 35 | }; | |
| 36 | ||
| 37 | void test() | |
| 38 | { | |
| 39 | using O = gdb::optional<value_type>; | |
| 40 | ||
| 41 | // Check emplace | |
| 42 | ||
| 43 | { | |
| 44 | O o; | |
| 45 | o.emplace(); | |
| 46 | VERIFY( o && o->state == 0 ); | |
| 47 | } | |
| 48 | { | |
| 49 | O o { gdb::in_place, 0 }; | |
| 50 | o.emplace(); | |
| 51 | VERIFY( o && o->state == 0 ); | |
| 52 | } | |
| 53 | ||
| 54 | { | |
| 55 | O o; | |
| 56 | o.emplace(0); | |
| 57 | VERIFY( o && o->state == 1 ); | |
| 58 | } | |
| 59 | { | |
| 60 | O o { gdb::in_place }; | |
| 61 | o.emplace(0); | |
| 62 | VERIFY( o && o->state == 1 ); | |
| 63 | } | |
| 64 | ||
| 65 | #ifndef GDB_OPTIONAL | |
| 66 | { | |
| 67 | O o; | |
| 68 | o.emplace({ 'a' }, ""); | |
| 69 | VERIFY( o && o->state == 2 ); | |
| 70 | } | |
| 71 | { | |
| 72 | O o { gdb::in_place }; | |
| 73 | o.emplace({ 'a' }, ""); | |
| 74 | VERIFY( o && o->state == 2 ); | |
| 75 | } | |
| 76 | #endif | |
| 77 | { | |
| 78 | O o; | |
| 79 | VERIFY(&o.emplace(0) == &*o); | |
| 80 | #ifndef GDB_OPTIONAL | |
| 81 | VERIFY(&o.emplace({ 'a' }, "") == &*o); | |
| 82 | #endif | |
| 83 | } | |
| 84 | ||
| 85 | static_assert( !std::is_constructible<O, std::initializer_list<int>, int>(), "" ); | |
| 86 | ||
| 87 | VERIFY( counter == 0 ); | |
| 88 | } | |
| 89 | ||
| 90 | } // namespace assign_6 |