NAME¶

std::ranges::chunk_view::size - std::ranges::chunk_view::size

Synopsis¶

constexpr auto size() requires ranges::sized_range<V>; (1) (since C++23)
constexpr auto size() const requires ranges::sized_range<const V>; (2) (since C++23)

Returns the number of elements, which is the smallest integer value that is not less
than the quotient of dividing the size of underlying view base_ by the underlying
data member n_, that holds the number passed to the constructor (0 if default
constructed). Equivalent to

return __to_unsigned_like(__div_ceil(ranges::distance(base_), n_));

Parameters¶

(none)

Return value¶

The number of elements.

Example¶

// Run this code

#include <ranges>

int main()
{
constexpr static auto v = {1, 2, 3, 4, 5};
constexpr auto w{ std::ranges::chunk_view(v, 2) };
static_assert(w.size() == (5 / 2 + (5 % 2 ? 1 : 0)));
}

See also¶

ranges::size returns an integer equal to the size of a range
(C++20) (customization point object)
ranges::ssize returns a signed integer equal to the size of a range
(C++20) (customization point object)