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The main content of this article is to explain "what is the difference between * paired 1 and * (paired 1) in C language". Interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "what's the difference between * paired 1 and * (paired 1) in C language"!

The difference is: 1, * p represents the content stored in the memory address that this pointer points to, p represents the name of a pointer variable; 2, * p is generally a variable or constant consistent with the pointer type, p outputs a hexadecimal number; 3, * p allows the program to go to that address to retrieve data, p stores the address.

The operating environment of this tutorial: windows7 system, Craft 17 version, Dell G3 computer.

In C language, * p and p are commonly used in pointers to represent a pointer variable, the difference between * p and p:

1. The meaning of the expression is different

* p indicates what is stored in the memory address that this pointer points to.

P represents the name of a pointer variable and refers to the memory address that the pointer variable points to.

2. The output format is different.

* p is generally a variable or constant that is consistent with the pointer type.

P outputs a hexadecimal number and the address of a pointer.

3. Different functions

* p is to ask the program to go to that address to retrieve data.

P stores the address.

Example:

1 、

Int a [5] = {1, 2, 5, 3, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 5, 5, 5, 4, 5, 5, 5, 5, 5, 5, 4, 5, 5, 5, 5, 4, 5, 5, 5, 4, 5, 5, 5, 5, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5

2 、

Int a [5] = {1, 2, 2, 3, 4, 5}; int * pincedard / declaration pointer variable pp = a

Extended data

(* p) an operation is an operation that returns the value of p as the value of that space of the address. (& p) is an operation that returns the address that was opened when p was declared. You can assign a value to a memory address with an assignment statement.

Example:

Int * ptinct pacifism 2003 Hutchen pamphlet 3000H

Results:

* * paired * (* (p)) = * (2003H) = * (3000H) = 3000H. & & pause & (& (p)) = & (3001H), an error occurred at this time. 3001H is a constant and cannot be stored at the address. * & pumped * (& (p)) = * (3001H) = 2003H, that is, * & pumped. At this point, I believe you have a deeper understanding of "what is the difference between * paired 1 and * (paired 1) in C language". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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