u/gothamtoadin r/C_Programming • Recommends
For anyone who's new to C programming and needs to understand pointers better, this lecture is fantastic
0:00 / 0:00
#pointers#memoryaddress#passbyreference
21:Everything u need 2 know about pointers -Richard Buckland
UNSW eLearning
70K subscribers • 2 videos on Hallway
- Recommended by 1 person: 1 in engineering communities.
- Presented by Richard Buckland
Beginner. No background in the topic needed.
541K views18 years ago1 recommendation
Systems programmingComputer scienceCMemory managementData structures
Richard Buckland reviews pointers, indirect addressing, pass-by-reference versus pass-by-value, and passing arrays in C.
(*but were afraid to ask) Review of pointers and indirect addressing. pass by reference/pass by value. Passing arrays into functions. 3 neat things you can do with pointers: 1. pass by ref 2. dynamic data structures (to come) 3. ADTs in c (to come) the exponential growth of doubling revisited. magic trick where you are offered a choice - VS the importance of a good spec. Starting to design a suduko solver. Mars bars from Hong Kong.Why it's here
1 person recommends thisWhat people say. Highly recommended for beginners as a fantastic and clear lecture for understanding pointers in C.
Moments people linked to
u/minamulhaqin r/embedded • Mentions
What does a VARIABLE mean? Value at memory location or Address of memory location?
I was watching a video on Pointers Everything you need to know about Pointers - Richard Buckland and it kind of made me thing about variables again. ***We've been told that variables hold the memory address right?***
consider the following:
int y;
int x = 5;
Let's suppose the memory address of variable x we're talking about is `0x100`.
We know that `&` is reference operator and gives the address of variable and `*` is the deference operator.
Now what we've learned is that `*0x100` should produce the value `5`. In other words to get the value stored at memory location 0x100, we do something…
u/CorrectMyBadGrammarin r/C_Programming • Mentions
On “Pointers”
I recommend this tutorial.
Richard Buckland explains it very well too.
u/Ulringin r/C_Programming • Mentions
On “Anyone got a link or a vide that make you understand how pointer work?”
I watched a lot of videos,but this one is the only one that helped me finaly understand the basics:
link to this video
In my opinion,no video or articles will help you fully grasp pointers.You need to do a loooot of exercices.
Wish you good luck!
u/gutkneislin r/C_Programming • Mentions
Questions about the video on pointers which is the #8 top post in this sub, find it to be rather confusing
While learning C a took a look at the top posts of /r/C_Programming and watched this video, Everything u need 2 know about pointers
I have two questions after watching it. First he draws a table which is supposed to represent memory addresses an values stored in this addresses.
Adress | Value
------|-----
0 | 1
1 | 2
2 | 4
3 | 8
4 | 11
5 | 10
6 | 3
7 | 5
8 | 10
9 | 8
10 | 2
11 | 6
12 | 1
13 | 0
14 | 0
15 | 5
He then declares and initializes an integer variable
int x = 2
and says that's what we find at address 10. He goes on and asks what
printf("%d", *x);
would refer…
u/mnrntjcin r/C_Programming • Mentions
On “Need Help in Pointer”
Ok. Stepping back from the code you've provided, it sounds like you are having trouble understanding exactly what a pointer 'is'. Everyone who learns C does intially, and the syntax for pointers doesn't aid this IMHO. I think this lecture gives a really good overview, and might help your understanding.
Next. In the code you've provided, you are treating x and y like pointers to Node structs (which is great), but you need to make sure that is what they actually are.
u/ml01in r/C_Programming • Mentions
On “C Programmers on Youtube”
I don't know of any channel that does advanced C and even talks are very hard to find.
Off the top of my head I remember watching and appreciating these:
- 21:Everything u need 2 know about pointers -Richard Buckland when I was learning pointers, not that advanced
- Standford CS107 already mentioned here, great series of lectures
- Advanced C Coding For Fun! networking stuff by Rusty Russell, that guy is really funny
- How I program C by Eskil Steenberg. This guy does graphics and game related things and it seems he really knows his stuff
u/knotdjbin r/C_Programming • Mentions
On “Can anyone explain pointers to me like I’m 5?”
This explanation resembles the way it is taught by Richard Buckland in this video.