Method set_next

include/libfork/core/impl/stack.hpp:128–131

* @brief Set the next stacklet in the chain to 'new_next'. * * This requires that this is the top stacklet. If there is a cached stacklet ahead of the top stacklet * then it will be freed before being replaced with 'new_next'. */

     * then it will be freed before being replaced with 'new_next'.
     */
    void set_next(stacklet *new_next) noexcept {
      LF_ASSERT(is_top());
      std::free(std::exchange(m_next, new_next)); // NOLINT
    }
    /**
     * @brief Allocate a new stacklet with a stack of size of at least`size` and attach it to the given
     * stacklet chain.