关于指针的本质，不涉及本质的本质........

stonemason

指针的本质是带类型的存储地址，对么？
为了严谨，语境是一个C语言虚拟机器，即它认识C，但不认识汇编、指令什么的

stonemason

来自维基

In philosophy, essence is the attribute or set of attributes that make an entity or substance what it fundamentally is, and which it has by necessity, and without which it loses its identity. Essence is contrasted with accident: a property that the entity or substance has contingently, without which the substance can still retain its identity. The concept originates with Aristotle, who used the Greek expression to ti ên einai, literally 'the what it was to be', or sometimes the shorter phrase to ti esti, literally 'the what it is,' for the same idea. This phrase presented such difficulties for his Latin translators that they coined the word essentia (English "essence" to represent the whole expression. For Aristotle and his scholastic followers the notion of essence is closely linked to that of definition (horismos).[1]

In the history of western thought, essence has often served as a vehicle for doctrines that tend to individuate different forms of existence as well as different identity conditions for objects and properties; in this eminently logical meaning, the concept has given a strong theoretical and common-sense basis to the whole family of logical theories based on the "possible worlds" analogy set up by Leibniz and developed in the intensional logic from Carnap to Kripke, which was later challenged by "extensionalist" philosophers such as Quine.

第二段看不懂

stonemason

xinp123 发表于 2012-11-09 14:38
计算机内部的实际数据,逻辑上只有0和1,指针实际形态也是一串0和1组成,本质上就是数,不过编译器对指针的处理 ...

不要脱离语境

C语言认识0和1，比如位域，但不认识'计算机内部的实际数据'...............

C语言认识存储，因为库函数有malloc()........

也认识地址，因为s[0]，s[1],.......

stonemason

linux_c_py_php 发表于 2012-11-10 11:57
指针存地址, 这就是本质.

应该把类型带上吧，不然*(p++)按啥增长？