Tiny Utils Library

A small C library that provides utility functions for common tasks.

Introduction

The Tiny Utils Library is a collection of utility functions designed to simplify common tasks in C programming. This library includes functions for string input, calculating variance, finding the most frequent element in an array, generating prime numbers using the Sieve of Eratosthenes algorithm, and checking if a number is prime. Additionally, there are macros for bit manipulations.

Functions

char *utils_strin(void): Reads a string of characters from the standard input and returns a dynamically allocated string.
int utils_variance(int arr[], int n): Calculates the variance of an integer array, given its length. Returns the variance as an integer.
int utils_frequent(int arr[], int n): Finds the most frequent element in an integer array, given its length. Returns the value of the most frequent element.
bool *utils_sieve_prime(uint64_t n): Generates an array of boolean values indicating whether each number up to n is prime or not, using the Sieve of Eratosthenes algorithm. Returns a dynamically allocated boolean array.
bool utils_is_prime(uint64_t n): Checks if a given number n is prime. Returns true if n is prime, and false otherwise.

Macros

The following macros are provided for bit manipulations:

bit_chk(x, n): Checks if the nth bit of x is set.
bit_set(x, n): Sets the nth bit of x to 1.
bit_res(x, n): Resets the nth bit of x to 0.
bit_xor(x, n): Flips the nth bit of x (0 to 1 or 1 to 0).

Usage

To use the Tiny Utils Library in your C program, include the utils.h header file in your source code.

#include "utils.h"

Define the following in one of your source file:

#define TINY_UTILS_IMPLEMENTATION

Contributing

Contributions to the Tiny Utils Library are welcome! If you have any improvements or bug fixes, please submit a pull request.

License

The Tiny Utils Library is licensed under the MIT License. See the LICENSE file for more information.