GODL!KE C Utility Library 🧰

A collection of general-purpose utility functions in C for common operations related to math, strings, and arrays.

How to Use

1. Place utility.c and utility.h into your project's source directory.
2. Include the header file in your code:

   #include "utility.h"

3. When compiling, remember to include utility.c in the command:

   gcc your_main_file.c utility.c -o your_program

Function Reference

Here is a complete list of all available functions.

General Math & Logic

• void swap(int *a, int *b): Swaps the values of two integers.
• int max(int a, int b): Returns the maximum of two integers.
• int min(int a, int b): Returns the minimum of two integers.
• unsigned long long factorial(int n): Calculates the factorial of a number.
• int is_prime(int n): Checks if a number is prime. Returns 1 if prime, 0 otherwise.

String Manipulation

• int string_length(const char *str): Calculates the length of a string.
• void reverse_string(char *str): Reverses a string in place.

Array Sorting & Searching

• void bubble_sort(int arr[], int size): Sorts an array in ascending order.
• int find_element(int arr[], int size, int target): Finds the first index of a target element. Returns -1 if not found.
• int find_first_occurrence(int arr[], int size, int value): Finds the first index of a value. Returns -1 if not found.
• int find_last_occurrence(int arr[], int size, int value): Finds the last index of a value. Returns -1 if not found.

Array Manipulation

• void reverse_array(int arr[], int size): Reverses the elements of an array in place.
• void copy_array(int src[], int dest[], int size): Copies elements from a source array to a destination array.
• int remove_duplicates(int arr[], int size): Removes duplicate elements from a sorted array and returns the new size.
• void fill_array(int arr[], int size, int value): Fills an array with a specific value.
• void rotate_array_left(int arr[], int size, int k): Rotates an array to the left by k positions.
• void rotate_array_right(int arr[], int size, int k): Rotates an array to the right by k positions.
• void concatenate_arrays(int arr1[], int size1, int arr2[], int size2, int dest[]): Concatenates two arrays into a destination array.
• void get_subarray(int arr[], int size, int start, int end, int dest[]): Creates a subarray from a start to an end index.
• void zero_array(int arr[], int size): Sets all elements of an array to zero.
• void merge_sorted_arrays(int arr1[], int size1, int arr2[], int size2, int dest[]): Merges two sorted arrays into a single sorted destination array.

Array Information & Properties

• int array_sum(int arr[], int size): Calculates the sum of all elements in an array.
• int array_max(int arr[], int size): Finds the maximum element in an array.
• int array_min(int arr[], int size): Finds the minimum element in an array.
• int is_sorted(int arr[], int size): Checks if an array is sorted in ascending order.
• int arrays_equal(int arr1[], int arr2[], int size1, int size2): Checks if two arrays are identical.
• double array_median(int arr[], int size): Calculates the median of a sorted array.
• int count_occurrences(int arr[], int size, int value): Counts how many times a value appears in an array.
• int array_contains(int arr[], int size, int value): Checks if an array contains a specific value.
• int is_array_palindrome(int arr[], int size): Checks if an array is a palindrome. =======

utility-v1

C language Utility functions!

9ac2b44084f18597751ddd061b0f2b79c3139faa