Thread: Overwriting

Hey all! Well there something still confusing me in C.
When I write i=0 and afterwards i=5; the recent number of i is the value of it; but why? What's going on pc exactly? is it a property of pc to overwrite? If so how is it going?


Sorry for the silly question but it's confusing me alot!!

What is with your Linux experience? Forgot?

RyanC, you are a Troll?

https://www.com-magazin.de/img/5/1/2..._w492_h312.jpg

Originally Posted by john.c

There is a great deal still confusing you in C.


Yes. Of course it is overwritten. What's so hard to understand about that? If it wasn't overwritten, where would the old value go? Would they just accumulate in memory until it was full? That would be stupid, wouldn't it?

What do you mean overwritten? ..replacing data? If so where the replaced data will go after replacing?!
Maybe I miss understanding the term overwritten..if u can illustrate please

I can say that I could just say the replaced data will be removed while overwritten but I couldn't imagine the process of how pc doing that!.. I guess he delets data first and then write

Originally Posted by GReaper

It's like having a cake on the table and when you want to replace it with another cake you smash the second on the first.

sorry What? didnt understand you at the end smash the second on the first..

Originally Posted by GReaper

It depends. Solid state drives, for example, have to delete a sector before writing to it. HDDs and RAM on the other hand can replace their data without wiping.

So in abbreviation; overwrite means delete +write? Meaning the pc is deleting before writing? Sorry Bout that but for just closing this point i need to understand it

What's confusing me lets say in real life i want to write on a line ... If its fully and pre-written as I get a eraser and wipping out what's written and afterwards writting.. But how its going in computing science

Once again i can like a parrot just say the
replaced data smashed! ; my question is pc has apility to smash and wipe out unlike our roleplay?!

Originally Posted by GReaper

I can give you a nice example for that. The computer does the following:
1) Copy the line in its temporary memory.
2) Changes it as much as it likes.
3) Overwrites the old line with the modified line.

So the term Overwrite is "delete the old+writes the modified"?
Meaning with this; that's the pc isn't actually write on the old data; it aipe the old data then write; this process called OverWrite...ye?