There are many places in the C language where macro definitions are used, such as in header files to prevent header files from being repeatedly included:
#ifndef ctest_header_h
#define CTEST_HEADER_H
/header file content
#endif
Many macro
We can think of classes, objects, encapsulation, inheritance, polymorphism, when we raise object-oriented objects. In "JavaScript Advanced Program Design" (People's Posts and telecommunications press, Cao Li, Zhang Xin translated. The English name
Although function pointers are widely used to implement function callbacks, C + + provides an important way to implement callback functions, which are function objects. A function object (also called a "operator") is an ordinary class object that
Thanks to http://blog.chinaunix.net/u3/111961/showart_2187819.html first
. This is an excellent article.
In the last study, we wrote a small client example, which is very simple and the header file generated by using producer-binding-tool is very
Let's look at a few examples
(1) struct{int x; int y;} Test1;
Well, define the structure test1,
test1.x and test1.y can be used in the statement.
(2) struct test {int x; int y;} Test1;
Well, define the structure test1,
test1.x and test1.y can be
Jency LeeLinks: http://www.cnblogs.com/Jency/articles/C_Cplusplus_define.html1. Simple define Definition #define MaxTime + A simple maxtime is defined, which represents 1000 if you write in the program if (i Compiler replaces maxtime with 1000
Php object-oriented content
1. What is object-oriented?
Object-Oriented Programming (Object Oriented Programming, OOP, Object-Oriented Programming) is a computer Programming architecture, one basic principle of OOP is that a computer program is
Object-Oriented Programming, my thoughts
Preface:
This document aims to help my colleagues better understand object-oriented programming. This allows later users to take less detours, but many vulnerabilities and errors are inevitable. We also ask
In many applications, some objects need to be serialized so that they can leave the memory space and stay on the physical hard disk for long-term storage. For example, the most common is the session object in the Web server. When 0.1 million users
The Define () function defines a constant.define () functions: Defines a constant. Constants is much like variables, except for the following differences: constants [constant] and variables [variable] There are many similarities, so it is easy to
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.