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/concepts.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/is_void.h> 23 #include <__type_traits/make_32_64_or_128_bit.h> 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 >= 20 32 33 template <__fmt_char_type _CharT> 34 struct _LIBCPP_TEMPLATE_VIS __formatter_integer { 35 public: 36 template <class _ParseContext> 37 _LIBCPP_HIDE_FROM_ABI constexpr typename _ParseContext::iterator parse(_ParseContext& __ctx) { 38 typename _ParseContext::iterator __result = __parser_.__parse(__ctx, __format_spec::__fields_integral); 39 __format_spec::__process_parsed_integer(__parser_, "an integer"); 40 return __result; 41 } 42 43 template <integral _Tp, class _FormatContext> 44 _LIBCPP_HIDE_FROM_ABI typename _FormatContext::iterator format(_Tp __value, _FormatContext& __ctx) const { 45 __format_spec::__parsed_specifications<_CharT> __specs = __parser_.__get_parsed_std_specifications(__ctx); 46 47 if (__specs.__std_.__type_ == __format_spec::__type::__char) 48 return __formatter::__format_char(__value, __ctx.out(), __specs); 49 50 using _Type = __make_32_64_or_128_bit_t<_Tp>; 51 static_assert(!is_void<_Type>::value, "unsupported integral type used in __formatter_integer::__format"); 52 53 // Reduce the number of instantiation of the integer formatter 54 return __formatter::__format_integer(static_cast<_Type>(__value), __ctx, __specs); 55 } 56 57 __format_spec::__parser<_CharT> __parser_; 58 }; 59 60 // Signed integral types. 61 template <__fmt_char_type _CharT> 62 struct _LIBCPP_TEMPLATE_VIS formatter<signed char, _CharT> : public __formatter_integer<_CharT> {}; 63 template <__fmt_char_type _CharT> 64 struct _LIBCPP_TEMPLATE_VIS formatter<short, _CharT> : public __formatter_integer<_CharT> {}; 65 template <__fmt_char_type _CharT> 66 struct _LIBCPP_TEMPLATE_VIS formatter<int, _CharT> : public __formatter_integer<_CharT> {}; 67 template <__fmt_char_type _CharT> 68 struct _LIBCPP_TEMPLATE_VIS formatter<long, _CharT> : public __formatter_integer<_CharT> {}; 69 template <__fmt_char_type _CharT> 70 struct _LIBCPP_TEMPLATE_VIS formatter<long long, _CharT> : public __formatter_integer<_CharT> {}; 71 # ifndef _LIBCPP_HAS_NO_INT128 72 template <__fmt_char_type _CharT> 73 struct _LIBCPP_TEMPLATE_VIS formatter<__int128_t, _CharT> : public __formatter_integer<_CharT> {}; 74 # endif 75 76 // Unsigned integral types. 77 template <__fmt_char_type _CharT> 78 struct _LIBCPP_TEMPLATE_VIS formatter<unsigned char, _CharT> : public __formatter_integer<_CharT> {}; 79 template <__fmt_char_type _CharT> 80 struct _LIBCPP_TEMPLATE_VIS formatter<unsigned short, _CharT> : public __formatter_integer<_CharT> {}; 81 template <__fmt_char_type _CharT> 82 struct _LIBCPP_TEMPLATE_VIS formatter<unsigned, _CharT> : public __formatter_integer<_CharT> {}; 83 template <__fmt_char_type _CharT> 84 struct _LIBCPP_TEMPLATE_VIS formatter<unsigned long, _CharT> : public __formatter_integer<_CharT> {}; 85 template <__fmt_char_type _CharT> 86 struct _LIBCPP_TEMPLATE_VIS formatter<unsigned long long, _CharT> : public __formatter_integer<_CharT> {}; 87 # ifndef _LIBCPP_HAS_NO_INT128 88 template <__fmt_char_type _CharT> 89 struct _LIBCPP_TEMPLATE_VIS formatter<__uint128_t, _CharT> : public __formatter_integer<_CharT> {}; 90 # endif 91 92 #endif //_LIBCPP_STD_VER >= 20 93 94 _LIBCPP_END_NAMESPACE_STD 95 96 #endif // _LIBCPP___FORMAT_FORMATTER_INTEGER_H 97