Libft-42sp

This is the entry project at École 42, in which students are challenged to recreate a set of functions from the classic standardised libC, and other supplementary functions. These functions will then be used throughout the school's curriculum, instead of the standard ones. Students are also welcome to incorporate their own functinos to their libft as needs arrise for the course of the curriculum.

The bonus part of this project comprises functions for the manipulation of singly linked lists.

This project is also the first contact we have with make and Makefile, and besides the source code for each function and a Makefile, another deliverable is the static library file libft.a.

Functions

The functions written for libft can be clustered in 6 groups:

Cluster	Functions
ASCII symbols validation and transformation	ft_isalpha, ft_isdigit, ft_isalnum, ft_isascii, ft_isprint, ft_toupper, ft_tolower, 🆕 ft_is_blankspace, 🆕 ft_isnumeric_str.c
(thread-safe) printing functions	ft_putchar_fd, ft_putstr_fd, ft_putendl_fd, ft_putnbr_fd
memory allocation and manipulation	ft_memcpy, ft_memset, ft_bzero, ft_memmove, ft_memcmp, ft_memchr, ft_calloc, ft_strdup, ft_substr, ft_strjoin, 🆕 ft_free_arr, 🆕 ft_free_ptr
string manipulation	ft_strlen, ft_strlcat, ft_strlcpy, ft_atoi, ft_strnstr, ft_strncmp, ft_strchr, ft_strrchr, ft_strtrim, ft_split, ft_itoa, 🆕 ft_append_char, 🆕 ft_atoli, 🆕 ft_uitoa, 🆕 ft_uitohex, 🆕 ft_ulitohex
iterative functions	ft_strmapi, 🆕 ft_striteri
⭐ linked lists manipulation	ft_lstnew, ft_lstdelone, ft_lstclear, ft_lstadd_front, ft_lstadd_back, ft_lstsize, ft_lstlast, ft_lstiter, ft_lstmap, 🆕 ft_lst_remove_node

note: ⭐ represents bonus functions; 🆕 represents extra functions added afterwards based on personal needs, not part of the original project submission.

All prototypes can be found in libft.h. See each function file for documentation notes.

Use Libft in your project

In order to use this static library in your project, you must download this repository into your pc, compile libft.a, then include the header libft.h to your source code, and add the compilation flags -L ./path/to/Libft-42sp -lft.

$> git clone https:/rodsmade/Libft-42sp.git
$> cd Libft-42sp
$> make

Example program (hello_libft.c):

#include "Libft-42sp/libft.h

int	main()
{
	ft_putstr_fd("Hello world!", 1);
	ft_putstr_fd("Powered by Libft.", 1);
	return (0);
}

Compilation command:

$> gcc hello_libft.c -o hello_libft -L ./Libft-42sp -lft

Expected Output:

$> ./hello_libft
Hello world!
Powered by Libft.
$>

Final note

As I studied for this project (and even further on as I progressed in the programme and better understood the basal concepts introduced here), I wrote this sort of guide/commentary on the project, and have since been sharing it with other fellow students of 42 in the hopes of presenting the delimitation of the subjects covered in this project (for it is known to be overwhelming at first, I've been there!), and also pointing a more clear and well-defined direction where to begin when starting off on this project. If need be, please check it out. It's written in Portuguese 🌵

Acelera - Libft