note 126143 deleted from features.gc.collecting-cycles by cmb

From: Date: Mon, 07 Jun 2021 08:25:05 +0000
Subject: note 126143 deleted from features.gc.collecting-cycles by cmb
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Note Submitter: 744976807 at qq dot com ---- 在步骤 B 中,模拟删除每个紫色变量。模拟删除时可能将不是紫色的普通变量引用数减"1",...... ----------------------------------------------------------- 文中对步骤B的描述,应该做些补充, 起初节点 zval 本身不做减 1 操作,但是如果节点 zval 中包含的符号表中有节点又指向了初始的 zval(环形引用),那么这个时候需要对节点 zval 进行减 1 操作; 参考文章:https://www.iminho.me/wiki/blog-18.html

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