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This article mainly introduces the relevant knowledge of "how to use pointer in the Chammer programming language". The editor shows you the operation process through an actual case. The operation method is simple and fast, and it is practical. I hope this article "how to use pointer in the Chammer programming language" can help you solve the problem.

1 What

Pointer is an important concept in the programming language Candlespace +. Pointers can usually be understood as memory addresses, and pointer variables are variables used to store memory addresses. Under the same CPU architecture, different types of pointer variables occupy the same length of storage units (and the variables that store data occupy different lengths of storage space depending on the data type). For example, in a 64-bit operating system (installed on top of the X64 CPU architecture), the pointer variable takes up 8 bytes. By using pointers, you can manipulate not only the data itself, but also the address of the variable where the data is stored.

The pointer variable stores the first address of the object it points to, and the object the pointer points to can be a variable (note that pointer variables are also variables), arrays, functions, objects, and other entities that occupy storage space.

Pointers are further introduced through a simple pointer and its information diagram pointing to the object. There is a character variable "c" with content "A" and a pointer (variable) named "pChar" pointing to the character variable, so the relationship between the character variable "c" and the pointer "pChar" to it is shown in the following figure:

From the above picture, we can see:

The memory address of the character variable "c" is "0x7ffefdc3ae00"

The memory address of the character variable "c" pointed to by the pointer variable "pChar" is "0x7ffefdc3ae00", so the content of the pointer variable is "0x7ffefdc3ae00". From this, you can see that unlike other variables, the pointer variable stores the memory address (while other variables usually store user data).

The pointer variable is also a kind of variable, which is also stored in the memory space. The pointer variable is not drawn in the memory space in the above figure in order to observe the relationship between the pointer variable and its pointing object.

2 examples of usage

In this chapter, you will use sample code to introduce the specific use of pointers in the programming language Candlestick +.

2.1 exampl

The code for example 1 is as follows:

# include using namespace std;int main () {char c = 'Agar; cout

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