Libft

Libft is a custom implementation of standard C library functions. This project is an essential part of the curriculum at 42 Berlin, designed to help students deepen their understanding of C programming by recreating essential C library functions from scratch.

Table of Contents

• Overview
• Functions
• Compilation
• Usage
• Project Structure

Overview

Libft provides a set of C functions that replicate and expand upon standard C library functions, such as memory manipulation, string operations, and more. It is a foundational library for further projects at 42.

Functions

The library includes implementations of functions grouped by functionality:

Memory Functions

• ft_memset
• ft_memcpy
• ft_memmove
• ft_bzero
• ft_memccpy
• ft_memcmp
• ft_memchr

String Functions

• ft_strlen
• ft_strcpy
• ft_strncpy
• ft_strcat
• ft_strncat
• ft_strlcat
• ft_strchr
• ft_strrchr

Utility Functions

• ft_atoi
• ft_itoa
• ft_isalpha
• ft_isdigit
• ft_isalnum
• ft_isascii
• ft_isprint

For a complete list of all implemented functions, refer to the source files in the /src directory.

Compilation

To compile the library, use the following command:

make

This will generate the libft.a static library file, which can be linked with other C programs.

Usage

Once compiled, you can link the libft.a library with your programs as follows:

gcc -Wall -Wextra -Werror -L. -lft your_program.c

Make sure to include the libft.h header in your C source files:

#include "libft.h"

Project Structure

/src: Contains all the C source files. /includes: Contains the header file libft.h. Makefile: Contains the rules for compiling the library.