NAME¶

std::ranges::split_view::base - std::ranges::split_view::base

Synopsis¶

constexpr V base() const& requires std::copy_constructible<V>; (1) (since C++20)
constexpr V base() &&; (2) (since C++20)

Returns a copy of the underlying view base_.

1) Copy constructs the result from the underlying view.
2) Move constructs the result from the underlying view.

Parameters¶

(none)

Return value¶

1) A copy of the underlying view.
2) A view move-constructed from the underlying view.

Example¶

// Run this code

#include <iomanip>
#include <iostream>
#include <ranges>
#include <string_view>

int main()
{
constexpr std::string_view keywords{"this throw true try typedef typeid"};
std::ranges::split_view split_view{keywords, ' '};
std::cout << "base() = " << std::quoted(split_view.base()) << "\n"
"substrings: ";
for (auto split : split_view)
std::cout << std::quoted(std::string_view{split}) << ' ';
std::cout << '\n';
}

Output:¶

base() = "this throw true try typedef typeid"
substrings: "this" "throw" "true" "try" "typedef" "typeid"

Defect reports

The following behavior-changing defect reports were applied retroactively to
previously published C++ standards.

DR Applied to Behavior as published Correct behavior
LWG 3590 C++20 the const& overload additionally required constraints relaxed
validity of copy-assignment

See also¶

base returns a copy of the underlying (adapted) view
(C++20) (public member function of std::ranges::lazy_split_view<V,Pattern>)