[format.range.fmtdef]

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namespace std { template<ranges::input_range R, class charT> struct range-default-formatter<range_format::sequence, R, charT> { / exposition only private: using maybe-const-r = fmt-maybe-const<R, charT>; / exposition only range_formatter<remove_cvref_t<ranges::range_reference_t<maybe-const-r>>, charT> underlying_; / exposition only public: constexpr void set_separator(basic_string_view<charT> sep) noexcept; constexpr void set_brackets(basic_string_view<charT> opening, basic_string_view<charT> closing) noexcept; template<class ParseContext> constexpr typename ParseContext::iterator parse(ParseContext& ctx); template<class FormatContext> constexpr typename FormatContext::iterator format(maybe-const-r& elems, FormatContext& ctx) const; }; }

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constexpr void set_separator(basic_string_view<charT> sep) noexcept;

Effects: Equivalent to: underlying_.set_separator(sep);

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constexpr void set_brackets(basic_string_view<charT> opening,
                            basic_string_view<charT> closing) noexcept;

Effects: Equivalent to: underlying_.set_brackets(opening, closing);

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template<class ParseContext>
  constexpr typename ParseContext::iterator
    parse(ParseContext& ctx);

Effects: Equivalent to: return underlying_.parse(ctx);

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template<class FormatContext>
  typename FormatContext::iterator
    format(maybe-const-r& elems, FormatContext& ctx) const;

Effects: Equivalent to: return underlying_.format(elems, ctx);

28 Text processing library [text]

28.5 Formatting [format]

28.5.7 Formatting of ranges [format.range]

28.5.7.3 Class template range-default-formatter [format.range.fmtdef]