CourseGenix

C Fundamentals

7 Units27 Lessons

Unit 1

C Functions

Introduction to C Functions

Real-World Project: Implementing a Basic Math Library

Passing Arguments to C Functions

Unit 2

Compound Data Types

Understanding Arrays in C

Working with Structures in C

Real-World Project: Creating a Student Database

Exploring Unions in C

Nested Structures and Arrays of Structures

Unit 3

Memory Management in C

Dynamic Memory Allocation Functions

Real-World Project: Dynamic Array Implementation

Basics of Pointers and Memory Allocation

Memory Management with Structures

Common Memory Errors and Debugging

Unit 4

File Handling

Opening and Closing Files in C

Reading Data from Files

Writing Data to Files

Real-World Project: Text File Processor

Unit 5

Error Handling

Basic Error Checking with Return Values

Using errno and perror for Errors

Signals and Custom Error Handlers

Real-World Project: Robust File Copy Utility

Unit 6

Miscellaneous C Concepts

Preprocessor Directives in C

Real-World Project: Configurable C Program

Typedef and Type Aliases

Unit 7

Advanced C

Bitwise Operations in C

Multi-File Programs and Linking

Real-World Project: Bitwise Encryption Tool

Unit 3•Chapter 2

Real-World Project: Dynamic Array Implementation

Summary

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In dynamic array implementation, what does realloc do to the pointer?

Copies data to new location

Increases array size without relocating

Frees the original memory block

Reallocates memory and may change pointer address

How are pointers used to resize a dynamic array in C?

Using malloc for fixed size

Directly modifying pointer value

Employing double pointers for arrays

By reallocating memory for new size

What risk is associated with pointers in dynamic arrays?

Increased execution speed

Data overflow prevention

Automatic garbage collection

Potential memory leaks if not freed

In C, how do you access the first element of a dynamic array via pointer?

Calling a library function

Directly with ptr[0]

Using pointer dereference like *ptr

Incrementing the pointer address

Why use double pointers for 2D dynamic arrays?

To simplify memory allocation

To handle arrays of pointers to arrays

For single dimensional arrays

Avoiding pointer arithmetic

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