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1// -*- C++ -*-2//===----------------------------------------------------------------------===//3//4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.5// See https://llvm.org/LICENSE.txt for license information.6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception7//8//===----------------------------------------------------------------------===//9 10#ifndef _LIBCPP___FORMAT_FORMATTER_POINTER_H11#define _LIBCPP___FORMAT_FORMATTER_POINTER_H12 13#include <__config>14#include <__cstddef/nullptr_t.h>15#include <__format/concepts.h>16#include <__format/format_parse_context.h>17#include <__format/formatter.h>18#include <__format/formatter_integral.h>19#include <__format/formatter_output.h>20#include <__format/parser_std_format_spec.h>21#include <cstdint>22 23#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)24# pragma GCC system_header25#endif26 27_LIBCPP_BEGIN_NAMESPACE_STD28 29#if _LIBCPP_STD_VER >= 2030 31template <__fmt_char_type _CharT>32struct __formatter_pointer {33public:34 template <class _ParseContext>35 _LIBCPP_HIDE_FROM_ABI constexpr typename _ParseContext::iterator parse(_ParseContext& __ctx) {36 typename _ParseContext::iterator __result = __parser_.__parse(__ctx, __format_spec::__fields_pointer);37 __format_spec::__process_display_type_pointer(__parser_.__type_, "a pointer");38 return __result;39 }40 41 template <class _FormatContext>42 _LIBCPP_HIDE_FROM_ABI typename _FormatContext::iterator format(const void* __ptr, _FormatContext& __ctx) const {43 __format_spec::__parsed_specifications<_CharT> __specs = __parser_.__get_parsed_std_specifications(__ctx);44 __specs.__std_.__alternate_form_ = true;45 __specs.__std_.__type_ =46 __specs.__std_.__type_ == __format_spec::__type::__pointer_upper_case47 ? __format_spec::__type::__hexadecimal_upper_case48 : __format_spec::__type::__hexadecimal_lower_case;49 50 return __formatter::__format_integer(reinterpret_cast<uintptr_t>(__ptr), __ctx, __specs);51 }52 53 __format_spec::__parser<_CharT> __parser_;54};55 56// [format.formatter.spec]/2.457// For each charT, the pointer type specializations template<>58// - struct formatter<nullptr_t, charT>;59// - template<> struct formatter<void*, charT>;60// - template<> struct formatter<const void*, charT>;61template <__fmt_char_type _CharT>62struct formatter<nullptr_t, _CharT> : public __formatter_pointer<_CharT> {};63template <__fmt_char_type _CharT>64struct formatter<void*, _CharT> : public __formatter_pointer<_CharT> {};65template <__fmt_char_type _CharT>66struct formatter<const void*, _CharT> : public __formatter_pointer<_CharT> {};67 68# if _LIBCPP_STD_VER >= 2369template <>70inline constexpr bool enable_nonlocking_formatter_optimization<nullptr_t> = true;71template <>72inline constexpr bool enable_nonlocking_formatter_optimization<void*> = true;73template <>74inline constexpr bool enable_nonlocking_formatter_optimization<const void*> = true;75# endif // _LIBCPP_STD_VER >= 2376#endif // _LIBCPP_STD_VER >= 2077 78_LIBCPP_END_NAMESPACE_STD79 80#endif // _LIBCPP___FORMAT_FORMATTER_POINTER_H81