Network Security Internet Technology Development Database Servers Mobile Phone Android Software Apple Software Computer Software News IT Information

In addition to Weibo, there is also WeChat

Please pay attention

WeChat public account

Shulou

What is the difference between regular function and pointer function in C language

2025-03-29 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Development >

Share

Shulou(Shulou.com)06/03 Report--

This article introduces the relevant knowledge of "what is the difference between conventional functions and pointer functions in c language". In the operation of actual cases, many people will encounter this dilemma. Next, let the editor lead you to learn how to deal with these situations! I hope you can read it carefully and be able to achieve something!

1. There is an extra * sign before the function name, and this function is a pointer function.

2. The return value is a pointer of type int, which is an address.

Example

# include int* fun1 (int* x) / / incoming pointer {int* tmp = x; / / pointer tmp points to x return tmp; / / returns the address pointed to by tmp} int fun2 (int* x) / / incoming pointer {return * x; / returns the value corresponding to the address pointed to by x} int main () {int b = 2; int* p = & b / / the address pointing to b / / calling the regular function printf ("func1:%d\ n", * fun1 (p)); / / outputting the value of the address pointed to by p / / calling the pointer function printf ("func2:%d\ n", fun2 (p)); / / outputting the value return 0 of the address pointed to by p } / * output: func1:2func2:2*/ "what's the difference between regular functions and pointer functions in c language"? thank you for your reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.

Views: 0

*The comments in the above article only represent the author's personal views and do not represent the views and positions of this website. If you have more insights, please feel free to contribute and share.

Share To

Development

Wechat

© 2024 shulou.com SLNews company. All rights reserved.

12
Report