NAME¶

std::ranges::stride_view::stride_view - std::ranges::stride_view::stride_view

Synopsis¶

constexpr explicit stride_view( V base, ranges::range_difference_t<V> (since C++23)
stride );

Constructs a stride_view initializing the underlying data members:

* move construct the underlying view base_ with std::move(base),
* construct the stride_ with stride.

If stride < 1 the behavior is undefined.

Parameters¶

base - the source view
stride - the stride value

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