Function try_get_block_from_initial_pool

concurrentqueue.h:3078–3087

	}
	
	inline Block* try_get_block_from_initial_pool()
	{
		if (initialBlockPoolIndex.load(std::memory_order_relaxed) >= initialBlockPoolSize) {
			return nullptr;
		}
		
		auto index = initialBlockPoolIndex.fetch_add(1, std::memory_order_relaxed);
		
		return index < initialBlockPoolSize ? (initialBlockPool + index) : nullptr;
	}
	
	inline void add_block_to_free_list(Block* block)
	{