I just read free() does not erase the data in

Question

I just read free() does not erase the data in

the dynamic memory. It just deallocates its pointer. Then why is it incorrectly spoken that "dynamic allocation is better than static as memory is not allocated at compile time and it can anytime be "freed" using free()"?

0

02.05.2022

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Nader Jafari

Nader Jafari
Deallocating lets another allocation overwrite tha...

Except as a security measure for the ultra paranoid maybe?? Idk

0

02.05.2022

none Автор вопроса

Nader Jafari
Deallocating lets another allocation overwrite tha...

😑 So basically all along this time, free(ptr) (where ptr is int pointer say) was a technique to just be able to reuse a pointer variable?

0

02.05.2022

Manav | avoid unnecessary messaging me

none
😑 So basically all along this time, free(ptr) (whe...

NO

0

02.05.2022

none Автор вопроса

Manav | avoid unnecessary messaging me
NO

I meant to say now don't use ptr for pointing "this" memory but now use it to point "that" memory in the heap

0

02.05.2022

Manav | avoid unnecessary messaging me

none
I meant to say now don't use ptr for pointing "thi...

You have a flawed understanding of how allocation works in C

0

02.05.2022

Amro ibrahim

none
😑 So basically all along this time, free(ptr) (whe...

Nah

0

02.05.2022

Nader Jafari · Accepted Answer

Nader Jafari

Deallocating lets another allocation overwrite that chunk of memory. You can set the whole thing to zero before deallocating but why would you waste time doing that

0

02.05.2022

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