Comprehensive Guide to Pointers in C for Beginners

This full course is designed for absolute beginners to help you grasp the concept of pointers in C. Learn how pointers serve as variables that store the memory address of other variables, enabling you to understand their functionality and applications.

Comprehensive Guide to Pointers in C for Beginners
freeCodeCamp.org
321.8K views โ€ข Jun 15, 2023
Comprehensive Guide to Pointers in C for Beginners

About this video

Finally understand pointers in C in this course for absolute beginners. Pointers are variables that store the memory address of another variable. They "point" to the location of data in memory. With a bunch of examples, this course demystifies pointers and their various uses, covering topics such as passing by reference vs. value, void pointers, arrays, and more.

โœ๏ธ Course created by @onaecO

โญ๏ธ Contents โญ๏ธ
(0:00:00) Introduction
(0:00:39) What is a computer eli5 CPU, RAM, bytes
(0:08:04) Data Types
(0:13:31) Intro to processes
(0:16:44) process memory layout
(0:19:17) Variables in memory
(0:23:01) Naive change_value program
(0:28:05) Change_value with pointers
(0:33:03) The classic swap
(0:34:05) Why declaration and dereference have the same syntax for pointers?
(0:38:39) Advantages of passing by reference va passing by value
(0:45:26) Why do pointers to different data types have the same size?
(0:47:49) Given that pointers have all the same size, why do we need a pointer type?
(0:58:16) void pointers are confusing
(1:00:14) why malloc is handy and more on void*
(1:09:09) Are arrays just pointers?
(1:25:00) Array Decay into a pointer
(1:32:59) why array decay is useful?
(1:37:49) arr[5] == 5[arr]
(1:39:04) pointers to pointers: **argv
(1:47:11) *argv[] or **argv?
(1:52:41) pointer to functions
(1:59:02) use case with pointers to functions

๐ŸŽ‰ Thanks to our Champion and Sponsor supporters:
๐Ÿ‘พ davthecoder
๐Ÿ‘พ jedi-or-sith
๐Ÿ‘พ ๅ—ๅฎฎๅƒๅฝฑ
๐Ÿ‘พ Agustรญn Kussrow
๐Ÿ‘พ Nattira Maneerat
๐Ÿ‘พ Heather Wcislo
๐Ÿ‘พ Serhiy Kalinets
๐Ÿ‘พ Justin Hual
๐Ÿ‘พ Otis Morgan

--

Learn to code for free and get a developer job: https://www.freecodecamp.org

Read hundreds of articles on programming: https://freecodecamp.org/news

โค๏ธ Support for this channel comes from our friends at Scrimba โ€“ the coding platform that's reinvented interactive learning: https://scrimba.com/freecodecamp

Video Information

Views

321.8K

Likes

9.6K

Duration

02:04:29

Published

Jun 15, 2023

User Reviews

4.8
(64)
Rate:

Related Trending Topics

LIVE TRENDS

Related trending topics. Click any trend to explore more videos.