| 对象中的指针对封装的影响 |
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| 引用本文： | 韩海.对象中的指针对封装的影响[J].江汉大学学报(自然科学版),2008,36(1):41-43. |
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| 作者姓名： | 韩海 |
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| 作者单位： | 江汉大学,数学与计算机科学学院,武汉,430056 |
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| 摘 要： | 提出了在C++编程环境中把对象内的指针区别对待的思想.对于内部含有指针的对象,根据对象与其中的指针所指向内容的关系,可以把指针分为内含式和外联式两类.内含式指针所指向的内容是对象的一个组成部分,外联式指针则描述对象与外部的联系.C++程序设计环境并不支持这样的划分,需要设计人员自己处理.对内含式的指针必须设计相应的拷贝构造函数,并且对赋值运算符进行重载,否则有可能破坏对象的封装特性.
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| 关 键 词： | 对象 指针 分类 封装 |
| 文章编号： | 1673-0143(2008)01-0041-03 |
| 修稿时间： | 2007年9月6日 |
Impact of Pointers in Objects on Encapsulation |
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| HAN Hai.Impact of Pointers in Objects on Encapsulation[J].Journal of Jianghan University:Natural Sciences,2008,36(1):41-43. |
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| Authors: | HAN Hai |
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| Institution: | HAN Hai (School of Mathematics and Computer Science, Jianghan University, Wuhan 430056, China) |
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| Abstract: | Advances the idea of differentiating the pointers inside objects in C programming system.Based on the relation between the objects and the contents pointed,pointers can be classified into two types: embedded pointers and exterior pointers.The content pointed by an embedded pointer is regarded as a portion of the object,while an exterior pointer describes the connection to the outside.Anyhow,the object-oriented programming systems do not support this kind of classi-fication,programmers must write the copy constructing function definitely for embedded pointers,and the operator should be overloaded,or the encapsulation of the objects will be affected. |
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| Keywords: | object pointer classification encapsulation |
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