std::ranges::concat_view<Views...>:: concat_view

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C++
Ranges library
Range adaptors
std::ranges::concat_view
Member functions
concat_view::concat_view
Deduction guides
Iterator
Member functions
Non-member functions
concat_view ( ) = default ;
(1) (since C++26)
constexpr concat_view ( Views... views ) ;
(2) (since C++26)
Overload views_
(1) default-initialized
(2) initialized with std :: move ( views ) ...

Parameters

views - view objects to adapt

Notes

In order to call the default constructor, Views must be explicitly provided and all types it contains must be default-initializable.

Example

An early preview of the example is available in Compiler Explorer .

Run this code 
#include <algorithm>
#include <ranges>
 
int main()
{
    using namespace std::ranges;
 
    static constexpr concat_view<empty_view<char>> concat1{}; // overload (1)
    static_assert(equal(concat1, views::empty<char>));
 
    static constexpr auto con = {'c', 'o', 'n'};
    static constexpr char cat[]{'c', 'a', 't', '\0'};
    static constexpr auto concat2{views::concat(con, cat)};   // overload (2)
    static_assert(equal(concat2, "concat"));
}
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