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wmimi2 发表于 2015-10-02 12:34
解释一下:ASCII是Unicode的基础,现在全国计算机二级考试大纲和考题还是ASCII,很多高校的C语言课也是ASCII。不学走路,焉得会跑?作为没有接触任何C语言的初学者,应先学习ASCII,不能以程序员的标准要求之,所以面向初学的书籍自然是这样的。君不见现在有多少C语言教材还是ASCII吗? ...
A pointer type describes an object whose value
provides a reference to an entity of the referenced type.
The C standard does not define what a pointer is internally and how it works internally. This is intentional so as not to limit the number of platforms, where C can be implemented as a compiled or interpreted language.
A pointer value can be some kind of ID or handle or a combination of several IDs (say hello to x86 segments and offsets) and not necessarily a real memory address. This ID could be anything, even a fixed-size text string. Non-address representations may be especially useful for a C interpreter.
The C standard does not define what a pointer is internally and how it works internally. This is intentional so as not to limit the number of platforms, where C can be implemented as a compiled or interpreted language.
A pointer value can be some kind of ID or handle or a combination of several IDs (say hello to x86 segments and offsets) and not necessarily a real memory address. This ID could be anything, even a fixed-size text string. Non-address representations may be especially useful for a C interpreter.
Third-Edition 发表于 2015-10-05 11:23
哎哟喂, 我的回帖没了, 我的回帖没有任何一个词有人生攻击的意思, 只是贴出了ISO/IEC 9899:1990 6.2.5 Type ...
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