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preface Pointer is not only the key point of c language, but also the difficulty of c language. Generally, we won't make mistakes in the simplest pointer variables. We can encounter pointer array, array pointer, two-dimensional pointer, three-dimensional pointer, function pointer and void pointer. Sometimes it gets confused. Today, I spend a d ...

I'm back! Less than 4 hours after the last blog post was sent out, this blog post has started again. I hope it will be smooth and smooth. Run away from the hanging section! 😢 If you haven't seen the link in the previous section, you can jump~ C language review (Part I) Oh, this one will follow the last one~ If you need source files, you ca ...

Catalogue preface 1, const qualifier 2, Quote 1 definition of reference 2 reference as function parameter 3 reference function return value 4 nature of reference 5 constant reference Concluding remarks preface Through summarizing the basic knowledge of C + +, the blogger is expected to write a simple C + + basic tutorial column and ...

Basic concepts of pointer What is the address Address in life: Memory address: Address and data in memory unit are two completely different concepts The address is like the room number. According to this number, we can find the corresponding roomMemory units are like rooms, which are dedicated to storing data Variable address: The ...

structural morphology Array is used to save a group of data of the same type, while structure is used to save a group of arrays of different types Before using a structure, you must first define the structure type, because C language doesn't know what types of data you need to store in your structure. We must tell C language what types of data ...

Before realizing the basic functions of single linked list, first introduce what is single linked list and the basic idea of adding, deleting, checking and modifying. 1, A brief introduction to linked list and single linked list (1) Linked list Overview: each element in the linear table has a unique precursor element and successor element. ...

The difference between object oriented and process oriented C language is process oriented and focuses on the process. It analyzes the steps to solve the problem and solves the problem step by step through function call. Process oriented is to analyze the steps required to solve the problem, and then use the function to realize these steps ...

As we know, adding & before a variable is the address of the variable, and * is the address of the variable. *Represents the address. int* a = new int[10]; // It means that the system allocates a continuous piece of memory to store int data, and a is the starting address of this piece of memory. *a = 10;// It means that the data in the fi ...

Some basic knowledge of functions 1. Format of function definition: Return value type function name (parameter list) { Code Body return x;(x is of type return value) } For example: int add(int a,int b) (void Do not use this type return) { int sum=a+b; return sum; } Function classification: library function; Functions that come with the sy ...

1, The concept of pointer The pointer is actually a location where the address is stored. It is the same as the ordinary constant data defined by us. They only store different contents. Therefore, when using the pointer, we need to pay attention to the specific contents we store. In addition, the pointer can store the address of the pointer. ...