Infinite Input Buffer | C Programming Example

[Rai_Te]

2 minor notes on the video:
#1 the 'else' in the program (when something else than -1 was entered) is not needed at all.
I would omit it.
#2 buffer=realloc(buffer, newsize); is a timebomb.
if realloc() fails (for whatever reason), you do not only have no new buffer,
you also lost your old buffer ... technically the old buffer is still there, but you
overwrote the pointer-variable holding the location.
So, use
newbuffer=realloc(oldbuffer, newsize)
followed by
if (newbuffer==NULL) { some errorhandling that might include oldbuffer }
else { oldbuffer=newbuffer; newbuffer=NULL; }

[punchedchunk]

Just came to C from higher level languages as a web developer. I was struggling with the idea of malloc and realloc and this just cleared everything up for me! Thanks!

[naboulsikhalid]

it's my second time watching this tutorial, and I just realized that it's a genius algorithm to increase the use of memory to instore data, to be processed. thank you

[aknsagdic]

Thank you Mr. for making the "Dynamic Memory Allocation" topic more understandable.

[ErginSoysal]

Great tutorial. A missing point, it’s required to free the allocated memory at the end, when it’s not being used anymore.

[naboulsikhalid]

as great as usual, the content is absolutely rich and fulfilling. Thank you

[zarifishmam]

if i'm correct, this behaves similarly to a vector list in c++ right?

[StreuB]

I might be missing something here, but it appears that malloc offers the structure of an array? Else, where does buffer inherit its structure [of an array] where it has elements?

EDIT: Disregard. You explain this in the first 5-10min of the malloc video. VERY COOL!

[SketchupGuru]

This was very intersting. I understood that realloc is essentially reallocating memory in ram for the code.
What does malloc do? Does it initialise memory for the code?

Can we just create the code without allocating memory and then reallocate if our code output is big?☺️

[samirprostov]

Hi! Thank u for the video.
I have a question:
Is there any reason to learn c, to better umderstand c#/c++ or any other language that based on pure C?

[war-cmmander]

What will happen when the hardware can't store values anymore?

[vinmo]

Hey I need help, am trying to understand ADT but it's like am getting the idea what can I do

[justcurious]

Nice, We can use the same idea to get infinite string from the user like this maybe :

char *infinite_line(void){
int size = 5;
char *line = (char*)malloc(sizeof(char) * size);
int c ;
int char_count = 0;
while((c = getchar()) != '\n'){
if(char_count == size){
size+=5;
line = realloc(line, sizeof(char) * size);
}
line[char_count] = c;
++char_count;
}
line[char_count] = '\0';
return line;
}

[vinmo]

make a video on how to use gtk+, to make user interface

[vinmo]

in real programming what can I do with bitwise knowledge?

[vinmo]

is c used to develop application that require a databases😁😁