Memory layout in c programming language with example | Know about memory leak and stack overflow

Memory layout in c programming language consist of below segments.
1. Code/Text segment
2. Initialized data segment
3. Uninitialized data segment (bss)
4. Heap
5. Stack

1. Code / Text segment
- This segment contains executable instructions

2. Initialised data segment
- This segment contains global or static data initialised with non-zero value.

3. Uninitialised data segment (bss)
- This segment contains global or static data either uninitialised or initialised with zero value

4. Heap
- Heap contains dynamically allocated memory using malloc / realloc / calloc

5. Stack
- Stack contains program stack, means stack frame for all function calls

Issue with Heap - Memory Leak
- Dynamically allocated memory must be freed by programmer using free() API after use.
- If programmer doesn't free the allocated memory using free() API, it will be wastage for memory. It will reduce available memory which may degrade system performance.

Issue with Stack - Stack overflow
- Recursive calling may cause stack overflow, if base condition is not there or wrong wrong base condition.

=============== Content of this video =================

0:00 Introduction
0:52 Code/Text Segment
1:32 Initialised data segment
1:44 bss
3:22 Heap
3:37 Stack
4:33 Stack & Heap
4:47 Issue with Heap - Memory leak
5:22 Issue with Stack - Stack overflow


#memory #cprogramming #memoryleak #stackoverflow #c++ #cpointers #pointers