| // -*- 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 <__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; |
| }; |
| |
| # if _LIBCPP_STD_VER > 20 |
| |
| template <class _Tp> |
| _LIBCPP_HIDE_FROM_ABI constexpr void __set_debug_format(_Tp& __formatter) { |
| if constexpr (requires { __formatter.set_debug_format(); }) |
| __formatter.set_debug_format(); |
| } |
| |
| # endif // _LIBCPP_STD_VER > 20 |
| #endif // _LIBCPP_STD_VER > 17 |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP___FORMAT_FORMATTER_H |