| // -*- C++ -*- |
| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef _LIBCPP___FORMAT_FORMATTER_H |
| #define _LIBCPP___FORMAT_FORMATTER_H |
| |
| #include <__availability> |
| #include <__concepts/same_as.h> |
| #include <__config> |
| #include <__format/format_fwd.h> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| # pragma GCC system_header |
| #endif |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| #if _LIBCPP_STD_VER > 17 |
| |
| /// The default formatter template. |
| /// |
| /// [format.formatter.spec]/5 |
| /// If F is a disabled specialization of formatter, these values are false: |
| /// - is_default_constructible_v<F>, |
| /// - is_copy_constructible_v<F>, |
| /// - is_move_constructible_v<F>, |
| /// - is_copy_assignable<F>, and |
| /// - is_move_assignable<F>. |
| template <class _Tp, class _CharT> |
| struct _LIBCPP_TEMPLATE_VIS _LIBCPP_AVAILABILITY_FORMAT formatter { |
| formatter() = delete; |
| formatter(const formatter&) = delete; |
| formatter& operator=(const formatter&) = delete; |
| }; |
| |
| namespace __formatter { |
| |
| /** The character types that formatters are specialized for. */ |
| template <class _CharT> |
| concept __char_type = same_as<_CharT, char> || same_as<_CharT, wchar_t>; |
| |
| } // namespace __formatter |
| |
| #endif //_LIBCPP_STD_VER > 17 |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP___FORMAT_FORMATTER_H |