Doubt in one of the basic concept

#1

what are the main differences between stack and heap memory

#2

@Adhyayan
Some of the differences are-

  • Stack is a linear data structure whereas Heap is a hierarchical data structure.
  • Stack memory will never become fragmented whereas Heap memory can become fragmented as blocks of memory are first allocated and then freed.
  • Stack accesses local variables only while Heap allows you to access variables globally.
  • Stack variables can’t be resized whereas Heap variables can be resized.
  • Stack memory is allocated in a contiguous block whereas Heap memory is allocated in any random order.
  • Stack doesn’t require to de-allocate variables whereas in Heap de-allocation is needed.
  • Stack allocation and deallocation are done by compiler instructions whereas Heap allocation and deallocation is done by the programmer.