Efficiency: When we push, we only visit each node once. When we pull, we again only visit each node once. This is about as efficient as things can get.
PS. This tagged pointer technique is actually a universal pattern across systems programming. It solves two problems: First, in dynamically typed contexts, the execution engine must know a value's type before operating on it. Second, placing this metadata in an extra struct field wastes memory and causes cache-misses from pointer chasing. To survive memory bus bottlenecks, engineers cram metadata directly into the unused bits of pointers. We'll discuss in the next post.
。wps对此有专业解读
В Венгрии обвинили Украину в попытках добиться энергетической блокады14:56
В стране ЕС белоруске без ее ведома удалили все детородные органы22:38
。谷歌是该领域的重要参考
"He's the perfect choice for representation in this area," said Teresa Lumsden, who attended his election night party.
Последние новости。WhatsApp Web 網頁版登入对此有专业解读