auto istream_view = std::views::istream<std::string>(words);; std::ranges::view_interface<std::ranges::basic_istream_view<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, char, std::char_traits<char> > > view2 = istream_view; return 0; } Forstd::ran...
std::ranges::view_interface is a helper class template for defining a view interface. view_interface is typically used with CRTP: class my_view : public std::ranges::view_interface<my_view> { public: auto begin() const { /*...*/ } auto end() const { /*...*/ } // empty(...
std::ranges::subrange std::ranges::take_view std::ranges::take_while_view Following types are derived from std::ranges::view_interface and do not declare their own data() member function, but they cannot use the default implementation, because their iterator types never satisfy contiguous...
std::ranges::view_interface<D>:: From cppreference.com <cpp |ranges |view interface Range access begin cbegin end cend rbegin crbegin rend crend size ssize data cdata empty Range conversions std::from_range_t std::from_range
The first element in the view. Notes In C++20, no type derived fromstd::ranges::view_interfacein the standard library provides their ownfront()member function. Almost all of these types use the default implementation. A notable exception isstd::ranges::basic_istream_view. For it never satis...