std::__detail::_Compiler - Man Page

typedef _TraitsT::char_type _CharT
typedef regex_constants::syntax_option_type _FlagT
typedef _NFA< _TraitsT > _RegexT

_Compiler (const _CharT *__b, const _CharT *__e, const typename _TraitsT::locale_type &__traits, _FlagT __flags)
shared_ptr< const _RegexT > _M_get_nfa () noexcept

class std::__detail::_Compiler< _TraitsT >"Builds an NFA from an input iterator range.

The _TraitsT type should fulfill requirements [28.3].