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    std::range-default-formatter<std::range_format::set>

    From cppreference.com
     
    C++
     
    Text processing library
     
    Formatting library
    Standard format specification
    Formatting functions
    (C++20)
    (C++20)
    (C++20)
    (C++20)
    (C++20)
    (C++20)
    Format strings
    (C++20)(C++20)(C++20)
    (C++26)
    Formatting concepts
    (C++23)
    Formatter
    (C++20)
    (C++23)
    (C++23)
    (C++23)
    (C++23)
    (C++20)(C++20)(C++20)
    (C++20)(C++20)(C++20)
    (C++23)
    (C++23)
    Formatting arguments
    (C++20)
    (C++20)
    (C++20)(C++20)(C++20)
    (C++20) (deprecated in C++26)
    (C++20)(C++20)
    Format error
    (C++20)
     
    std::formatter<range>
     
    Defined in header <format> 
    template< ranges::input_range R, class CharT >
struct /*range-default-formatter*/<range_format::set, R, CharT>;
    		(since C++23)
    (exposition only*)

    The class template /*range-default-formatter*/ for range types is specialized for formatting range as a set of keys if std::format_kind<R> is std::range_format::set.

    Member types

    Member Definition
    maybe-const-set (private) fmt-maybe-const<R, CharT>
    (exposition-only member type*)

    Data members

    Member Definition
    underlying_ (private) the underlying formatter of type:

    std::range_formatter<std::remove_cvref_t<
         ranges::range_reference_t<maybe-const-set>>, CharT>
    (exposition-only member object*)

    Member functions

    (constructor)
    		 constructs a range-default-formatter
    (public member function)
    parse
    		 parses the format specifier as specified by range-format-spec
    (public member function)
    format
    		 writes the range formatted output as specified by range-format-spec
    (public member function)

    std::range-default-formatter<std::range_format::set>::range-default-formatter

    constexpr /*range-default-formatter*/();

    Equivalent to a call to underlying_.set_brackets(STATICALLY_WIDEN<CharT>("{"), STATICALLY_WIDEN<CharT>("}"))

    where STATICALLY_WIDEN<CharT>("...") is "..." if CharT is char, and L"..." if CharT is wchar_t.

    std::range-default-formatter<std::range_format::set>::parse

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

    Equivalent to return underlying_.parse(ctx);.

    Returns an iterator past the end of the range-format-spec.

    std::range-default-formatter<std::range_format::set>::format

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

    Equivalent to return underlying_.format(r, ctx);.

    Returns an iterator past the end of the output range.

    See also

    (C++20)
    		 defines formatting rules for a given type
    (class template) [edit]
    (C++23)
    		 class template that helps implementing std::formatter specializations for range types
    (class template) [edit]