std::__detail(3)

NAME
std::__detail - Implementation details not part of the namespace std interface.

SYNOPSIS

  Classes
struct _BracketMatcher
Matches a character range (bracket expression)
class _Compiler
Builds an NFA from an input iterator range.
class _Executor
Takes a regex and an input string and does the matching.
struct _List_node_base
Common part of a node in the list.
struct _List_node_header
The list node header.
struct _Quoted_string
Struct for delimited strings.
class _Scanner
Scans an input range for regex tokens.
class _StateSeq
Describes a sequence of one or more _State, its current start and end(s). This structure contains fragments of an NFA during construction.

  Typedefs
template<typename _Cat, typename _Limit, typename _Otherwise = _Cat> using __clamp_iter_cat
template<typename _Tp, typename _Up> using __cmp3way_res_t
template<typename _Tp> using __unsigned_least_t
template<typename _CharT> using _Matcher
typedef long _StateIdT

  Enumerations
enum _Opcode : int { _S_opcode_unknown, _S_opcode_alternative, _S_opcode_repeat, _S_opcode_backref, _S_opcode_line_begin_assertion, _S_opcode_line_end_assertion, _S_opcode_word_boundary, _S_opcode_subexpr_lookahead, _S_opcode_subexpr_begin, _S_opcode_subexpr_end, _S_opcode_dummy, _S_opcode_match, _S_opcode_accept }
Operation codes that define the type of transitions within the base NFA that represents the regular expression.
enum class _RegexExecutorPolicy : int { _S_auto, _S_alternate }

  Functions
template<typename _Res, typename _Tp> constexpr _Res __abs_r (_Tp __val)
template<typename> void __abs_r (bool)=delete
template<typename _ChTraits> constexpr auto __char_traits_cmp_cat (int __cmp) noexcept
template<typename... _Ts> constexpr auto __common_cmp_cat ()
template<typename _Container, typename _UnsafeContainer, typename _Predicate> _Container::size_type __erase_nodes_if (_Container &__cont, _UnsafeContainer &__ucont, _Predicate __pred)
template<typename _ValT, typename _CharT, typename _Traits> basic_istream< _CharT, _Traits > & __extract_params (basic_istream< _CharT, _Traits > &__is, vector< _ValT > &__vals, size_t __n)
template<bool _DecOnly, typename _Tp> constexpr bool __from_chars_alnum (const char *&__first, const char *__last, _Tp &__val, int __base)
std::from_chars implementation for integers in any base. If _DecOnly is true, then we may assume __base is at most 10.
template<bool _DecOnly = false> constexpr unsigned char __from_chars_alnum_to_val (unsigned char __c)
template<bool _DecOnly, typename _Tp> constexpr bool __from_chars_pow2_base (const char *&__first, const char *__last, _Tp &__val, int __base)
std::from_chars implementation for integers in a power-of-two base. If _DecOnly is true, then we may assume __base is at most 8.
template<typename _Tp> constexpr _Tp __gcd (_Tp __m, _Tp __n)
template<typename _Tp> constexpr bool __p1_representable_as_double (_Tp __x) noexcept
template<typename _Tp> constexpr bool __raise_and_add (_Tp &__val, int __base, unsigned char __c)
template<typename _BiIter, typename _Alloc, typename _CharT, typename _TraitsT> bool __regex_algo_impl (_BiIter __s, _BiIter __e, match_results< _BiIter, _Alloc > &__m, const basic_regex< _CharT, _TraitsT > &__re, regex_constants::match_flag_type __flags, _RegexExecutorPolicy __policy, bool __match_mode)
template<typename _Tp> constexpr bool __representable_as_double (_Tp __x) noexcept
template<typename _Tp> void __return_temporary_buffer (_Tp *__p, size_t __len)
template<typename _Tp> constexpr to_chars_result __to_chars (char *__first, char *__last, _Tp __val, int __base) noexcept
template<typename _Tp> constexpr to_chars_result __to_chars_10 (char *__first, char *__last, _Tp __val) noexcept
template<typename _Tp> constexpr void __to_chars_10_impl (char *__first, unsigned __len, _Tp __val) noexcept
template<typename _Tp> constexpr to_chars_result __to_chars_16 (char *__first, char *__last, _Tp __val) noexcept
template<typename _Tp> constexpr to_chars_result __to_chars_2 (char *__first, char *__last, _Tp __val) noexcept
template<typename _Tp> constexpr to_chars_result __to_chars_8 (char *__first, char *__last, _Tp __val) noexcept
template<typename _Tp> constexpr unsigned __to_chars_len (_Tp __value, int __base) noexcept
template<typename _Tp> constexpr unsigned __to_chars_len_2 (_Tp __value) noexcept
template<typename _CharT, typename _Traits, typename _String> std::basic_ostream< _CharT, _Traits > & operator<< (std::basic_ostream< _CharT, _Traits > &__os, const _Quoted_string< _String, _CharT > &__str)
Inserter for quoted strings.
template<typename _CharT, typename _Traits> std::basic_ostream< _CharT, _Traits > & operator<< (std::basic_ostream< _CharT, _Traits > &__os, const _Quoted_string< const _CharT *, _CharT > &__str)
Inserter for quoted strings.
template<typename _CharT, typename _Traits, typename _Alloc> std::basic_istream< _CharT, _Traits > & operator>> (std::basic_istream< _CharT, _Traits > &__is, const _Quoted_string< basic_string< _CharT, _Traits, _Alloc > &, _CharT > &__str)
Extractor for delimited strings. The left and right delimiters can be different.

  Variables
template<typename _Tp> constexpr unsigned __cmp_cat_id
template<> constexpr unsigned __cmp_cat_id< partial_ordering >
template<> constexpr unsigned __cmp_cat_id< strong_ordering >
template<> constexpr unsigned __cmp_cat_id< weak_ordering >
constexpr _StateIdT _S_invalid_state_id

Detailed Description

Implementation details not part of the namespace std interface.

Function Documentation

  template<bool _DecOnly, typename _Tp> bool std::__detail::__from_chars_alnum (const char *& __first, const char * __last, _Tp & __val, int __base) [constexpr]

std::from_chars implementation for integers in any base. If _DecOnly is true, then we may assume __base is at most 10.

Referenced by std::from_chars().

  template<bool _DecOnly, typename _Tp> bool std::__detail::__from_chars_pow2_base (const char *& __first, const char * __last, _Tp & __val, int __base) [constexpr]

std::from_chars implementation for integers in a power-of-two base. If _DecOnly is true, then we may assume __base is at most 8.

Referenced by std::from_chars().

  template<typename _CharT, typename _Traits, typename _String> std::basic_ostream< _CharT, _Traits > & std::__detail::operator<< (std::basic_ostream< _CharT, _Traits > & __os, const _Quoted_string< _String, _CharT > & __str)

Inserter for quoted strings.

  template<typename _CharT, typename _Traits> std::basic_ostream< _CharT, _Traits > & std::__detail::operator<< (std::basic_ostream< _CharT, _Traits > & __os, const _Quoted_string< const _CharT *, _CharT > & __str)

Inserter for quoted strings.

  template<typename _CharT, typename _Traits, typename _Alloc> std::basic_istream< _CharT, _Traits > & std::__detail::operator>> (std::basic_istream< _CharT, _Traits > & __is, const _Quoted_string< basic_string< _CharT, _Traits, _Alloc > &, _CharT > & __str)

Extractor for delimited strings. The left and right delimiters can be different.

References std::basic_ios< _CharT, _Traits >::clear(), std::ios_base::flags(), std::ios_base::fmtflags, std::basic_ios< _CharT, _Traits >::good(), std::ios_base::setf(), std::ios_base::skipws, and std::basic_istream< _CharT, _Traits >::unget().

Author

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