c pointers and references

C + + arrays, pointers, references, and composite types of three There is no separate introduction to these three, only the combination types that use these three components are introduced.One, 22 combinationThere are 9 types of 22 combinations of

The three ways to define a pointer are: 1 int * p;  2. int* p; 3. int *p; The habit is different.The three ways to define a function pointer are: 1. int *p (); 2. int * p (); 3. int* p (); 1. Pointer passing and reference passing In C, if you want

This article from listening_music:http://blog.csdn.net/listening_music/article/details/6921608Thank you for the beautiful article provided by the author, I am very useful, thank you!1. Definitions of pointers and referencesHere's an overview of

The following is an overview of what you can say in plain words: Pointers-For a type t,t* is a pointer to T type, that is, a variable of type t* can hold the address of a T object, and type T can add some qualifiers, such as const, volatile

There are three major differences between reference and pointer:1. The reference must be initialized and the pointer is not required.2. The reference cannot be changed after initialization. the pointer can change the variable.3. There is no

Some time ago, in my blog on cnblogs, I talked about: References/pointers in java are not similar to references/pointers in c ++/C. Java reference, equivalent to c ++ pointer (fun3 ). Java references can be assigned null values, while c ++

★ Same point:1. Is the concept of the address;The pointer points to a piece of memory whose contents are the address of the referred memory, and the reference is the alias of a block of memory.★ Difference:1. The pointer is an entity, and the

The difference between a reference and a pointer in C + +The difference between pointers to different types is that the pointer type knows what the compiler interprets in memory content and size in a particular address (the address the pointer

http://blog.csdn.net/thisispan/article/details/7456169★ Same Point:1. is the concept of the address;The pointer points to a piece of memory whose contents are the address of the referred memory, and the reference is the alias of a block of memory.★

★ Same point:1. Is the concept of the address; the pointer points to a piece of memory whose contents are the address of the referred memory; the reference is the alias of a block of memory.★ Difference:1. The pointer is an entity, and the reference