Embedded System Developer Interview Questions and Answers

Memory leak is a situation where a program fails to release memory that is no longer needed, leading to memory exhaustion.

• Memory leak occurs when dynamically allocated memory is not deallocated after it is no longer needed.

• It can happen when a program forgets to free memory or loses track of memory addresses.

• Memory leaks can gradually consume all available memory, causing the program to crash or slow down.

• Examples of memory leaks include not freeing memory allocated with mall...read more

A wild pointer is a pointer that points to an invalid memory address.

• Wild pointers can cause program crashes or unexpected behavior.

• They occur when a pointer is not initialized or is freed and then used again.

• Example: int *ptr; *ptr = 5; //ptr is a wild pointer

• To avoid wild pointers, always initialize pointers and avoid using freed memory.

Pointers and structures are fundamental concepts in C programming language.

• Pointers are variables that store memory addresses.

• Structures are user-defined data types that group related data together.

• Pointers can be used to access and manipulate data within structures.

• Pointer arithmetic can be used to iterate through arrays of structures.