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 <__concepts/arithmetic.h> 14 #include <__config> 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 <__type_traits/is_void.h> 22 #include <__type_traits/make_32_64_or_128_bit.h> 23 24 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 25 # pragma GCC system_header 26 #endif 27 28 _LIBCPP_BEGIN_NAMESPACE_STD 29 30 #if _LIBCPP_STD_VER >= 20 31 32 template <__fmt_char_type _CharT> 33 struct _LIBCPP_TEMPLATE_VIS __formatter_integer { 34 public: 35 template <class _ParseContext> parse__formatter_integer36 _LIBCPP_HIDE_FROM_ABI constexpr typename _ParseContext::iterator parse(_ParseContext& __ctx) { 37 typename _ParseContext::iterator __result = __parser_.__parse(__ctx, __format_spec::__fields_integral); 38 __format_spec::__process_parsed_integer(__parser_, "an integer"); 39 return __result; 40 } 41 42 template <integral _Tp, class _FormatContext> format__formatter_integer43 _LIBCPP_HIDE_FROM_ABI typename _FormatContext::iterator format(_Tp __value, _FormatContext& __ctx) const { 44 __format_spec::__parsed_specifications<_CharT> __specs = __parser_.__get_parsed_std_specifications(__ctx); 45 46 if (__specs.__std_.__type_ == __format_spec::__type::__char) 47 return __formatter::__format_char(__value, __ctx.out(), __specs); 48 49 using _Type = __make_32_64_or_128_bit_t<_Tp>; 50 static_assert(!is_void<_Type>::value, "unsupported integral type used in __formatter_integer::__format"); 51 52 // Reduce the number of instantiation of the integer formatter 53 return __formatter::__format_integer(static_cast<_Type>(__value), __ctx, __specs); 54 } 55 56 __format_spec::__parser<_CharT> __parser_; 57 }; 58 59 // Signed integral types. 60 template <__fmt_char_type _CharT> 61 struct _LIBCPP_TEMPLATE_VIS formatter<signed char, _CharT> : public __formatter_integer<_CharT> {}; 62 template <__fmt_char_type _CharT> 63 struct _LIBCPP_TEMPLATE_VIS formatter<short, _CharT> : public __formatter_integer<_CharT> {}; 64 template <__fmt_char_type _CharT> 65 struct _LIBCPP_TEMPLATE_VIS formatter<int, _CharT> : public __formatter_integer<_CharT> {}; 66 template <__fmt_char_type _CharT> 67 struct _LIBCPP_TEMPLATE_VIS formatter<long, _CharT> : public __formatter_integer<_CharT> {}; 68 template <__fmt_char_type _CharT> 69 struct _LIBCPP_TEMPLATE_VIS formatter<long long, _CharT> : public __formatter_integer<_CharT> {}; 70 # ifndef _LIBCPP_HAS_NO_INT128 71 template <__fmt_char_type _CharT> 72 struct _LIBCPP_TEMPLATE_VIS formatter<__int128_t, _CharT> : public __formatter_integer<_CharT> {}; 73 # endif 74 75 // Unsigned integral types. 76 template <__fmt_char_type _CharT> 77 struct _LIBCPP_TEMPLATE_VIS formatter<unsigned char, _CharT> : public __formatter_integer<_CharT> {}; 78 template <__fmt_char_type _CharT> 79 struct _LIBCPP_TEMPLATE_VIS formatter<unsigned short, _CharT> : public __formatter_integer<_CharT> {}; 80 template <__fmt_char_type _CharT> 81 struct _LIBCPP_TEMPLATE_VIS formatter<unsigned, _CharT> : public __formatter_integer<_CharT> {}; 82 template <__fmt_char_type _CharT> 83 struct _LIBCPP_TEMPLATE_VIS formatter<unsigned long, _CharT> : public __formatter_integer<_CharT> {}; 84 template <__fmt_char_type _CharT> 85 struct _LIBCPP_TEMPLATE_VIS formatter<unsigned long long, _CharT> : public __formatter_integer<_CharT> {}; 86 # ifndef _LIBCPP_HAS_NO_INT128 87 template <__fmt_char_type _CharT> 88 struct _LIBCPP_TEMPLATE_VIS formatter<__uint128_t, _CharT> : public __formatter_integer<_CharT> {}; 89 # endif 90 91 #endif //_LIBCPP_STD_VER >= 20 92 93 _LIBCPP_END_NAMESPACE_STD 94 95 #endif // _LIBCPP___FORMAT_FORMATTER_INTEGER_H 96