Libft

Libft is a project from 42 school aimed at recreating part of the C standard library. This project helps to better understand the workings of libc functions and acquire essential skills in C programming.

Table of Contents

1. Overview
2. Features
3. Installation
4. Usage
5. Implemented Functions
6. Author

Overview

Libft is a custom library written in C, composed of various functions for string manipulation, memory management, and linked list handling.

Features

• Reimplementation of standard C library (libc) functions.
• Additional functions to facilitate common operations in C.
• Support for linked lists as an extension.

Installation

To use libft, simply clone the repository and compile the library.

git clone https://github.com/garcia2/42_Libft
cd 42_Libft
make

This will generate a libft.a file that you can link to your projects.

Usage

Include the header file libft.h in your project, then compile your code by linking the library.

#include "libft.h"

// Example usage
int main(void) {
    char *str = ft_strdup("Hello, 42!");
    ft_putstr_fd(str, 1);
    free(str);
    return 0;
}

To compile:

gcc -Wall -Wextra -Werror main.c -L. -lft -o my_program

Implemented Functions

Standard Library Functions

• ft_calloc, ft_memset, ft_bzero, ft_memcpy, ft_memmove, ft_memchr, ft_memcmp
• ft_strlen, ft_strdup, ft_strcpy, ft_strncat
• ft_strchr, ft_strrchr, ft_strnstr, ft_strncmp
• ft_atoi, ft_isalpha, ft_isdigit, ft_isalnum, ft_isascii, ft_isprint
• ft_toupper, ft_tolower

Additional Functions

• ft_striteri, ft_substr, ft_strjoin, ft_strtrim, ft_strlcat, ft_split, ft_itoa, ft_strmapi
• ft_putchar_fd, ft_putstr_fd, ft_putendl_fd, ft_putnbr_fd

Bonus Functions (Linked Lists)

• ft_lstnew, ft_lstadd_front, ft_lstsize, ft_lstlast, ft_lstadd_back
• ft_lstdelone, ft_lstclear, ft_lstiter, ft_lstmap

Author

Project developed by Nicolas Garcia as part of 42 school.