About typedef
来源:互联网 发布:php前端和后端的区别 编辑:程序博客网 时间:2024/06/06 00:45
A typedef lets us define a synonym for a type:
typedef double wages; // wages is a synonym for double typedef int exam_score; // exam_score is a synonym for int typedef wages salary; // indirect synonym for double
A typedef name can be used as a type specifier:
wages hourly, weekly; // double hourly, weekly; exam_score test_result; // int test_result;
A typedef definition begins with the keyword typedef, followed by the data type and identifier. The identifier, or typedef name, does not introduce a new type but rather a synonym for the existing data type. A typedef name can appear anywhere in a program that a type name can appear.
Typedefs are commonly used for one of three purposes:
To hide the implementation of a given type and emphasize instead the purpose for which the type is used
To streamline complex type definitions, making them easier to understand
To allow a single type to be used for more than one purpose while making the purpose clear each time the type is used
- About typedef
- About #define and typedef
- about:
- about
- About
- About
- About
- typedef
- typedef
- typedef
- typedef
- typedef- -
- typedef
- typedef
- typedef
- typedef
- typedef
- Typedef
- .Grove—— .Net下的ORM框架
- -在javascript中获取机器名和window登录名
- TCP-IP学习笔记_卷1_第12章_多播和广播
- JAVA相关基础知识---2
- About References!
- About typedef
- Java 继承时的隐藏
- fanny说要离开站长站了
- About Enumerations
- 世界上最好的十把军刀!
- Windows消息大全
- Java源码解读之java.util.ArrayList
- 面向对象的应用服务层设计
- 利用jspsmartupload组件来上传和下载文件