std::ranges::stride_view<V>::stride_view
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std::ranges::stride_view
stride_view::stride_view
(C++26)
constexpr explicit stride_view( V base, ranges::range_difference_t <V> stride );
(since C++23)
Constructs a stride_view initializing the underlying data members:
If stride < 1 the behavior is undefined.
[edit] Parameters
base
-
the source view
stride
-
the stride value
[edit] Example
Run this code
#include <algorithm> #include <iostream> #include <iterator> #include <ranges> #include <string_view> void print(std::string_view rem, auto v, std::string_view term = "\n") { std::cout << rem << ": "; std::ranges::copy (v, std::ostream_iterator <int>(std::cout, " ")); std::cout << term; }; int main() { auto source = std::views::iota (1, 10); print("source", source); for (int stride_value : std::views::iota (1, 6)) { auto strided_view = std::views::stride (source, stride_value); print("stride", std::views::single (stride_value), "-> "); print("result", strided_view); } }
Output:
source: 1 2 3 4 5 6 7 8 9 stride: 1 -> result: 1 2 3 4 5 6 7 8 9 stride: 2 -> result: 1 3 5 7 9 stride: 3 -> result: 1 4 7 stride: 4 -> result: 1 5 9 stride: 5 -> result: 1 6