void swap( basic_regex& other );

bool operator==( const regex_token_iterator& other ) const;

template< class BidirIt, class CharT = typename std::i

size_type size() const;

Defined in header

constexpr sub_match();

difference_type length() const;

Defined in header

locale_type imbue( locale_type loc );

explicit match_results( const Allocator& a = Allocator() );