|
| 1 | +// Tag type for yielding ranges rather than values in <generator> -*- C++ -*- |
| 2 | + |
| 3 | +// Copyright (C) 2023 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 | +// Under Section 7 of GPL version 3, you are granted additional |
| 17 | +// permissions described in the GCC Runtime Library Exception, version |
| 18 | +// 3.1, as published by the Free Software Foundation. |
| 19 | + |
| 20 | +// You should have received a copy of the GNU General Public License and |
| 21 | +// a copy of the GCC Runtime Library Exception along with this program; |
| 22 | +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| 23 | +// <http://www.gnu.org/licenses/>. |
| 24 | + |
| 25 | +#ifndef _GLIBCXX_BITS_ELEMENTS_OF |
| 26 | +#define _GLIBCXX_BITS_ELEMENTS_OF |
| 27 | + |
| 28 | +#pragma GCC system_header |
| 29 | + |
| 30 | +#include <bits/c++config.h> |
| 31 | + |
| 32 | +#include <bits/version.h> |
| 33 | + |
| 34 | +// C++ >= 23 && __glibcxx_coroutine |
| 35 | +#if defined(__glibcxx_ranges) && defined(__glibcxx_generator) |
| 36 | +#include <bits/ranges_base.h> |
| 37 | +#include <bits/memoryfwd.h> |
| 38 | + |
| 39 | +#if _GLIBCXX_HOSTED |
| 40 | +# include <bits/allocator.h> // likely desirable if hosted. |
| 41 | +#endif // HOSTED |
| 42 | + |
| 43 | +namespace std _GLIBCXX_VISIBILITY(default) |
| 44 | +{ |
| 45 | +_GLIBCXX_BEGIN_NAMESPACE_VERSION |
| 46 | +namespace ranges |
| 47 | +{ |
| 48 | + |
| 49 | + /** |
| 50 | + * @ingroup ranges |
| 51 | + * @since C++23 |
| 52 | + * @{ |
| 53 | + */ |
| 54 | + |
| 55 | + template<range _Range, typename _Alloc = allocator<byte>> |
| 56 | + struct elements_of |
| 57 | + { |
| 58 | + [[no_unique_address]] _Range range; |
| 59 | + [[no_unique_address]] _Alloc allocator = _Alloc(); |
| 60 | + }; |
| 61 | + |
| 62 | + template<typename _Range, typename _Alloc = allocator<byte>> |
| 63 | + elements_of(_Range&&, _Alloc = _Alloc()) |
| 64 | + -> elements_of<_Range&&, _Alloc>; |
| 65 | + |
| 66 | + /// @} |
| 67 | +} |
| 68 | +_GLIBCXX_END_NAMESPACE_VERSION |
| 69 | +} // namespace std |
| 70 | + |
| 71 | +#endif // __glibcxx_generator && __glibcxx_ranges |
| 72 | +#endif // _GLIBCXX_BITS_ELEMENTS_OF |
0 commit comments