boost::capy::const_buffer::const_buffer

constexpr
const_buffer() = default;

constexpr
const_buffer(const_buffer const& other) = default;

constexpr
const_buffer(mutable_buffer const& b) noexcept;

template<class ConstBuffer>
requires (std::same_as<ConstBuffer, asio::const_buffer> ||
                  std::same_as<ConstBuffer, asio::mutable_buffer>)
constexpr
const_buffer(ConstBuffer const& b) noexcept;

constexpr
const_buffer(
    void const* data,
    std::size_t size) noexcept;