Assignment 3: Function Library Project | C++ Programming Course

Assignment Overview

Build a Math Utility Library that demonstrates mastery of functions, pointers, memory management, and references. Your library will provide array operations, statistical functions, and dynamic memory utilities.

Functions (3.1)

Declaration, definition, overloading

Pointers (3.2)

Pointer operations, arrays

Memory (3.3)

new, delete, dynamic arrays

References (3.4)

Pass by reference, const ref

The Scenario

DataCrunch Analytics

You're a developer at DataCrunch Analytics. The team needs a reusable C++ library for numerical computations. Your task is to build the core utility functions.

"We need functions for array statistics, dynamic array management, and matrix operations. The library must be efficient - use pointers where appropriate and avoid memory leaks!"

Requirements

Header File (mathlib.h)

Create function declarations with proper prototypes:

// Array Statistics
double findMin(const double* arr, int size);
double findMax(const double* arr, int size);
double calculateMean(const double* arr, int size);
double calculateMedian(double* arr, int size);
double calculateStdDev(const double* arr, int size);

// Dynamic Array Functions
double* createArray(int size);
void resizeArray(double*& arr, int oldSize, int newSize);
void deleteArray(double*& arr);

// Swap and Sort (using references)
void swap(double& a, double& b);
void bubbleSort(double* arr, int size);
void selectionSort(double* arr, int size);

Implementation File (mathlib.cpp)

Implement all functions using pointers and pointer arithmetic where appropriate.

Dynamic Memory Management

createArray() - allocate with new
resizeArray() - create new, copy, delete old
deleteArray() - free memory and set pointer to nullptr
No memory leaks allowed!

Main Program (main.cpp)

Demonstrate all library functions with test cases and formatted output.

Function Overloading

Provide overloaded versions of findMin and findMax for int arrays.

Submission

Required Repository Name

cpp-math-library

cpp-math-library/
├── mathlib.h           # Header file with declarations
├── mathlib.cpp         # Implementation file
├── main.cpp            # Test program
├── sample_output.txt   # Sample output
└── README.md           # Documentation

Submit Your Assignment

Grading Rubric

Criteria	Points
Header File Structure	20
Statistical Functions	40
Dynamic Memory Functions	40
Sorting Functions	30
Function Overloading	20
No Memory Leaks	30
Code Quality & Documentation	20
Total	200

Function Library Project

What You'll Practice

Contents