Libft is an individual project at 42 that aims to build a library of useful functions that we will be allowed to use in all of our future projects.

To get started with the libft.a library, you need to have the following files in your project directory:

• libft.h: header file containing function prototypes and macro definitions
• libft.a: static library file containing compiled object code of the library functions
• ft_*.c: source files containing the implementation of the library functions

You can compile the libft.a library by running the make command in the project directory. This will generate the libft.a file that you can link to your project.

The Makefile included in the project provides the following targets:

• all: compiles the library
• clean: removes object files
• fclean: removes object files and the library file
• re: removes object files and the library file, then compiles the library again

You can run these targets by typing make followed by the target name in the terminal.

The libft.a library contains the following functions:

• ft_atoi: converts a string to an integer
• ft_bzero: sets a memory area to zero
• ft_calloc: allocates memory for an array and initializes it to zero
• ft_isascii: checks if a character is a valid ASCII character
• ft_isalnum: checks if a character is an alphabetic or a digit
• ft_isalpha: checks if a character is an alphabetic character
• ft_isdigit: checks if a character is a digit
• ft_isprint: checks if a character is a printable character
• ft_memchr: searches for a specific character in a memory area
• ft_memcmp: compares two memory areas
• ft_memcpy: copies a memory area from source to destination

• ft_memmove: copies a memory area from source to destination, handling overlapping areas
• ft_memset: sets a memory area to a specific value
• ft_strchr: searches for a specific character in a string
• ft_strdup: duplicates a string
• ft_strlcat: appends a string to a destination buffer, with a specified maximum size
• ft_strlcpy: copies a string to a destination buffer, with a specified maximum size
• ft_strlen: calculates the length of a string
• ft_strncmp: compares two strings, up to a specified maximum length
• ft_strnstr: searches for a substring in a string, with a specified maximum length
• ft_strrchr: searches for a specific character in a string, starting from the end
• ft_tolower: converts a character to lowercase
• ft_toupper: converts a character to uppercase

• ft_itoa: Converts an integer to a string.
• ft_putchar_fd: Outputs a character to a file descriptor.
• ft_putendl_fd: Outputs a string followed by a newline to a file descriptor.
• ft_putnbr_fd: Outputs an integer to a file descriptor.
• ft_putstr_fd: Outputs a string to a file descriptor.
• ft_split: Splits a string into an array of substrings based on a delimiter character.
• ft_striteri: Applies a function to each character of a string.
• ft_strjoin: Concatenates two strings.
• ft_strmapi: Applies a function to each character of a string with its index.
• ft_strtrim: Removes specified characters from the beginning and end of a string.
• ft_substr: Returns a substring of a string starting at a specified index with a specified length.

• ft_lstadd_back: Adds a new element to the end of a linked list.
• ft_lstadd_front: Adds a new element to the beginning of a linked list.
• ft_lstclear: Deletes all elements of a linked list and frees their memory.
• ft_lstdelone: Deletes an element of a linked list and frees its memory.
• ft_lstlast: Returns the last element of a linked list.
• ft_lstmap: Applies a function to each element of a linked list and creates a new list with the results.
• ft_lstnew: Creates a new element for a linked list.
• ft_lstsize: Returns the number of elements in a linked list.
• ft_lstiter: Applies a function to each element of a linked list.

This project was completed as part of the curriculum at 19