Memory Leak, Union, Heap,Stack in C

What is a memory leak?

Memory leak is that when memory is allocated but its not released because of an application consume memory reducing the available memory for other applications and causing the system to page virtual memory to the hard drive showing the application or crashing the application. When the computer memory resource limits are reached.

 Explain about storage of union elements.

The key point about storage of union elements is that Union elements are use to share common memory space.

What is the difference between the Heap and the Stack?

The main difference b/n the Heap and the Stack are given below:

- In stack we create object temporary where programmer used to reserve allocation.'
- stack not have automatic garbage collection where as heap have automatic garbage collection.