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std::range-default-formatter(3) C++ Standard Libary std::range-default-formatter(3)

NAME

std::range-default-formatter - std::range-default-formatter

Synopsis


Defined in header <format>
template< ranges::input_range R, class CharT > (since C++23)
struct range-default-formatter<range_format::sequence, R, (exposition only*)
CharT>;


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

Member types


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

Member objects

Member name Definition
the underlying formatter of type underlying_ std::range_formatter<std::remove_cvref_t<ranges::range_reference_t<maybe-const-r>>, (private) CharT>
(exposition-only member object*)

Member functions


constructor constructs a range-default-formatter
(implicitly declared) (public member function)
set_separator sets a specified separator for the range formatted result
(public member function)
sets a specified opening and closing brackets for the range
set_brackets formatted result
(public member function)
parse parses the format specifier as specified by range-format-spec
(public member function)
writes the range formatted output as specified by
format range-format-spec
(public member function)

std::range-default-formatter<std::range_format::sequence>::set_separator


constexpr void set_separator( std::basic_string_view<CharT> sep ) noexcept;


Equivalent to a call to underlying_.set_separator(sep).

std::range-default-formatter<std::range_format::sequence>::set_brackets


constexpr void set_brackets( std::basic_string_view<CharT> opening,
std::basic_string_view<CharT> closing ) noexcept;


Equivalent to a call to underlying_.set_brackets(opening, closing).

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


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


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


Returns an iterator past the end of the output range.

See also


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

2024.06.10 http://cppreference.com