define const

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typedef and DEFINE,CONST,STRUCT and typedef structs

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

[Zz] understanding const char * P, char const * P, char * const P, const char ** P, char const ** P, char * const * P, char ** con

I. Possible combinations: (1) const char * P (2) Char const * P (3) char * const P(4) const char ** P (5) Char const ** P (6) char * const * P (7) Char ** const P Of course, there are several cases of inserting a const in (5), (6), and

Assignment of const char *, char *, const char **, and char **

Constraints for assigning values according to ansi c: 1. Both operands are pointers to compatible types with or without delimiters. 2. the type pointed to by the Left pointer must have all the qualifiers of the type pointed to by the right

C + + const and define

Yesterday interview by the Group of Examiners asked about the const and define similarities and differences, began to be simple, then asked my head is a group of paste. Almost a summary of the information today1. Const and define.Both can be used to

A summary of const usage in C + + _c language

The use of const in C + + is very extensive, different location to use the meaning is not the same, so want to write an article to make a summary. First of all, it is clear that the const is the basic meaning of "unchanging", but the same does not

Introduction to const in C Language (description of const keywords)

Const thinking 1. What is const?A common type is a type described by the Type modifier Const. The values of variables or objects of a common type cannot be updated. (Of course, we can steal the bar for updating :) 2. Why is const introduced?The

Use of C + + const

Const is used to declare a constant, and when you do not want a value to be changed, use the const,const INT max && int const Max is no different, all can.Does not involve pointer const very well understood.Cases involving pointers:Conat int b=100,

Repeat the classic-Objective C ++ item2: replace const, Enum, and inline as much as possible # define

Blog (http://blog.csdn.net/livelylittlefish) Post the notes prepared by the author (@ Xiaoyu) on the relevant research and study content. You are welcome to correct them!   1. macro definition   # Define aspect_ratio 1.653 The macro definition

Const Usage Details

Const Usage Details Object-oriented is an important feature of C ++.However, the optimizations added by C ++ on the basis of C are also very dazzling.Const can directly replace # define in C.The following points are very important, and the

Const in-depth analysis

Object-oriented is an important feature of C ++. However, the optimizations added by C ++ on the basis of C are also very dazzling. Const can directly replace # define in C. The following points are very important, and the consequences are also very

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