Libft - Your First C Library

About

This project involves creating your own C library containing a collection of general-purpose functions that will serve as a foundation for future C programming projects.

Project Requirements

Mandatory Part

Program Specifications

• Program Name: libft.a
• Turn in Files: Makefile, libft.h, ft_*.c
• Makefile Rules: NAME, all, clean, fclean, re

Technical Requirements

• All code must be written in C
• Follow the Norm coding standards
• Functions should not quit unexpectedly (no segfaults, bus errors, double free, etc.)
• Properly manage heap allocated memory (no memory leaks)
• Submit a Makefile that compiles without relinking using cc -Wall -Wextra -Werror flags
• Create helper functions as static functions when needed
• No global variables allowed
• Place all files at the root of the repository

Part 1 - Libc Functions

Recreate these standard C library functions with ft_ prefix:

• isalpha, isdigit, isalnum, isascii, isprint
• strlen, memset, bzero, memcpy, memmove
• strlcpy, strlcat, toupper, tolower
• strchr, strrchr, strncmp, memchr
• memcmp, strnstr, atoi

Functions requiring malloc:

• calloc
• strdup

Part 2 - Additional Functions

Create these additional functions:

Function	Description
ft_substr	Extract substring from string
ft_strjoin	Concatenate two strings
ft_strtrim	Trim characters from string
ft_split	Split string using delimiter
ft_itoa	Convert integer to string
ft_strmapi	Apply function to string
ft_striteri	Apply function to string with index
ft_putchar_fd	Output char to file descriptor
ft_putstr_fd	Output string to file descriptor
ft_putendl_fd	Output string with newline
ft_putnbr_fd	Output number to file descriptor

Bonus Part

Linked List Functions

Using this structure:

typedef struct s_list
{
    void *content;
    struct s_list *next;
} t_list;

Implement these functions:

• ft_lstnew: Create new list node
• ft_lstadd_front: Add node at beginning
• ft_lstsize: Count nodes
• ft_lstlast: Get last node
• ft_lstadd_back: Add node at end
• ft_lstdelone: Delete node content
• ft_lstclear: Delete sequence of nodes
• ft_lstiter: Apply function to list content
• ft_lstmap: Apply function and create new list

Bonus Rule

Add a bonus rule in your Makefile to include bonus functions in your library. Note that the bonus part will only be evaluated if the mandatory part is perfect.

Submission

Submit your work to your Git repository. Only the work in the repository will be evaluated during the defense. Ensure all files are at the root of your repository with correct names.