<xstd/bits/ext/boost/bit_small_valarray.hpp>

basic_bit_small_valarray, bit_small_valarray

template<unsigned_integer Block, size_t N, class Alloc = boost::container::new_allocator<Block>>
  requires see below
using basic_bit_small_valarray = basic_bit_valarray<boost::container::small_vector<Block, see below, Alloc>>;

template<size_t N>
using bit_small_valarray = basic_bit_small_valarray<size_t, N>;

A basic_bit_valarray over the small storage, with:

• bit_small_valarray<N> holds its bools in size_t blocks, the ceil(N / D) blocks that hold N bits inline, and Alloc defaults to Boost's own. Past the inline blocks they move to the heap, and the elements stay what they were.
• A const subscript gathers into a valarray of the same type.