Libft is my independent implementation of essential C library functions, developed as part of the libft project at Hive Helsinki Coding School. The primary objective is to recreate fundamental functions without relying on external support. Only three allowed functions—malloc, free, and write—can be utilized.
The unique approach taken is not just to learn the use of functions like strnstr but to meticulously code them from scratch. This library serves as a foundational component for subsequent, more intricate projects. The principle is clear: we can only use functions if we've previously built them from the ground up.
- String Manipulation: Custom implementations of standard string manipulation functions.
- Memory Management: Functions for memory allocation and manipulation.
- Linked Lists: Basic operations for linked list handling.
- Character Operations: Functions for character manipulation and checking.
- File writing: Writting desired data into files.
To use Libft in your project, you must clone the repo and run the makefile:
git clone https://github.com/pmarkaid/42_libft.git libft
cd libft
makeHere are some basic examples demonstrating how to use Libft functions:
#include <stdio.h>
#include "libft.h"
int main() {
// Example 1: Convert a string to an integer
const char *str1 = "12345";
int result1 = ft_atoi(str1);
printf("Result 1 (ft_atoi): %d\n", result1);
// Example 2: Get a substring
const char *str2 = "Hello, World!";
char *result2 = ft_substr(str2, 7, 5);
printf("Result 2 (ft_substr): %s\n", result2);
free(result2);
// Example 3: Add an element to the end of a linked list
t_list *list = NULL;
int data = 42;
ft_lstadd_back(&list, ft_lstnew(&data));
printf("Result 3 (ft_lstadd_back): %d\n", *(int *)(list->content));
// Cleanup: Free the linked list
ft_lstclear(&list, free);
return 0;
}Contributions are welcome! If you see any bug, you are welcome to make open an issue.
This project is licensed under the MIT License.