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-exception 7 // 8 //===----------------------------------------------------------------------===// 9 10 #ifndef _LIBCPP___FORMAT_FORMATTER_INTEGER_H 11 #define _LIBCPP___FORMAT_FORMATTER_INTEGER_H 12 13 #include <__availability> 14 #include <__concepts/arithmetic.h> 15 #include <__config> 16 #include <__format/format_fwd.h> 17 #include <__format/format_parse_context.h> 18 #include <__format/formatter.h> 19 #include <__format/formatter_integral.h> 20 #include <__format/formatter_output.h> 21 #include <__format/parser_std_format_spec.h> 22 #include <__type_traits/make_32_64_or_128_bit.h> 23 #include <type_traits> 24 25 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 26 # pragma GCC system_header 27 #endif 28 29 _LIBCPP_BEGIN_NAMESPACE_STD 30 31 #if _LIBCPP_STD_VER > 17 32 33 template <__formatter::__char_type _CharT> 34 struct _LIBCPP_TEMPLATE_VIS _LIBCPP_AVAILABILITY_FORMAT __formatter_integer { 35 36 public: 37 _LIBCPP_HIDE_FROM_ABI constexpr auto 38 parse(basic_format_parse_context<_CharT>& __parse_ctx) -> decltype(__parse_ctx.begin()) { 39 auto __result = __parser_.__parse(__parse_ctx, __format_spec::__fields_integral); 40 __format_spec::__process_parsed_integer(__parser_); 41 return __result; 42 } 43 44 template <integral _Tp> 45 _LIBCPP_HIDE_FROM_ABI auto format(_Tp __value, auto& __ctx) const -> decltype(__ctx.out()) { 46 __format_spec::__parsed_specifications<_CharT> __specs = __parser_.__get_parsed_std_specifications(__ctx); 47 48 if (__specs.__std_.__type_ == __format_spec::__type::__char) 49 return __formatter::__format_char(__value, __ctx.out(), __specs); 50 51 using _Type = __make_32_64_or_128_bit_t<_Tp>; 52 static_assert(!is_same<_Type, void>::value, "unsupported integral type used in __formatter_integer::__format"); 53 54 // Reduce the number of instantiation of the integer formatter 55 return __formatter::__format_integer(static_cast<_Type>(__value), __ctx, __specs); 56 } 57 58 __format_spec::__parser<_CharT> __parser_; 59 }; 60 61 // Signed integral types. 62 template <__formatter::__char_type _CharT> 63 struct _LIBCPP_TEMPLATE_VIS _LIBCPP_AVAILABILITY_FORMAT formatter<signed char, _CharT> 64 : public __formatter_integer<_CharT> {}; 65 template <__formatter::__char_type _CharT> 66 struct _LIBCPP_TEMPLATE_VIS _LIBCPP_AVAILABILITY_FORMAT formatter<short, _CharT> : public __formatter_integer<_CharT> { 67 }; 68 template <__formatter::__char_type _CharT> 69 struct _LIBCPP_TEMPLATE_VIS _LIBCPP_AVAILABILITY_FORMAT formatter<int, _CharT> : public __formatter_integer<_CharT> {}; 70 template <__formatter::__char_type _CharT> 71 struct _LIBCPP_TEMPLATE_VIS _LIBCPP_AVAILABILITY_FORMAT formatter<long, _CharT> : public __formatter_integer<_CharT> {}; 72 template <__formatter::__char_type _CharT> 73 struct _LIBCPP_TEMPLATE_VIS _LIBCPP_AVAILABILITY_FORMAT formatter<long long, _CharT> 74 : public __formatter_integer<_CharT> {}; 75 # ifndef _LIBCPP_HAS_NO_INT128 76 template <__formatter::__char_type _CharT> 77 struct _LIBCPP_TEMPLATE_VIS _LIBCPP_AVAILABILITY_FORMAT formatter<__int128_t, _CharT> 78 : public __formatter_integer<_CharT> {}; 79 # endif 80 81 // Unsigned integral types. 82 template <__formatter::__char_type _CharT> 83 struct _LIBCPP_TEMPLATE_VIS _LIBCPP_AVAILABILITY_FORMAT formatter<unsigned char, _CharT> 84 : public __formatter_integer<_CharT> {}; 85 template <__formatter::__char_type _CharT> 86 struct _LIBCPP_TEMPLATE_VIS _LIBCPP_AVAILABILITY_FORMAT formatter<unsigned short, _CharT> 87 : public __formatter_integer<_CharT> {}; 88 template <__formatter::__char_type _CharT> 89 struct _LIBCPP_TEMPLATE_VIS _LIBCPP_AVAILABILITY_FORMAT formatter<unsigned, _CharT> 90 : public __formatter_integer<_CharT> {}; 91 template <__formatter::__char_type _CharT> 92 struct _LIBCPP_TEMPLATE_VIS _LIBCPP_AVAILABILITY_FORMAT formatter<unsigned long, _CharT> 93 : public __formatter_integer<_CharT> {}; 94 template <__formatter::__char_type _CharT> 95 struct _LIBCPP_TEMPLATE_VIS _LIBCPP_AVAILABILITY_FORMAT formatter<unsigned long long, _CharT> 96 : public __formatter_integer<_CharT> {}; 97 # ifndef _LIBCPP_HAS_NO_INT128 98 template <__formatter::__char_type _CharT> 99 struct _LIBCPP_TEMPLATE_VIS _LIBCPP_AVAILABILITY_FORMAT formatter<__uint128_t, _CharT> 100 : public __formatter_integer<_CharT> {}; 101 # endif 102 103 #endif //_LIBCPP_STD_VER > 17 104 105 _LIBCPP_END_NAMESPACE_STD 106 107 #endif // _LIBCPP___FORMAT_FORMATTER_INTEGER_H 108