std::ranges::chunk_view<V>:: size

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

#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