~LIBFT~
 

Libft is the first project in the Common Core from 42Cursus. In this proyect you should learn how to program some standart library C functions, as many other functions that will be usefull for future proyects.

Makefile

For compilation, you can use Makefile by tipyng make + rule command desired in the same directory as Makefile is ubicated.

A Makefile is a special file that you create name Makefile, it contains shell commands. While in the directory containing this Makefile, you will run the make command and the commands written in the Makefile will be executed. Makefile is a shell script that automate compiling repetitive tasks of compiling.

Rules

A Makefile contains a list of rules. These rules tell the system what commands you want to execute. Most of the time, these rules are commands to compile, or recompile, a series of files.

• all
• clean
• fclean
• re
• bonus
• rebonus

Functions

Original Functions	Description	Aditional functions	Description	BONUS	Description
ft_isalnum	Checks for an alphanumeric character.	ft_substr	Returns a substring, located in the string.	ft_lstnew	Creates a new element in the list.
ft_isalpha	Checks for an alphabetic character.	ft_strjoin	Concatenates two strings into a new string.	ft_lstadd_front	Adds an element to the front of the list.
ft_isascii	Checks for an ASCII character.	ft_strtrim	Trims characters from the beginning and end of a string.	ft_lstsize	Returns the number of elements in the list.
ft_isdigit	Checks for a digit (0 through 9).	ft_strmapi	Applies a function to each character of a string to create a new string.	ft_lstlast	Returns the last element of the list.
ft_isprint	Tests for any printable character.	ft_striteri	Applies a function to each character of a string (with its index).	ft_lstadd_back	Adds an element to the end of the list.
ft_toupper	Converts a lowercase letter to uppercase.	ft_itoa	Converts an integer to a string.	ft_lstdelone	Deletes a single element from the list.
ft_tolower	Converts an uppercase letter to lowercase.	ft_split	Splits a string into an array of substrings.	ft_lstclear	Clears all elements from the list.
ft_strlen	Calculates the length of a string.	ft_putchar_fd	Outputs a character to a file descriptor.	ft_lstiter	Iterates over each element of the list.
ft_memset	Fills memory with a constant byte.	ft_putstr_fd	Outputs a string to a file descriptor.	ft_lstmap	Applies a function to each element and creates a new list.
ft_bzero	Sets a buffer to zero.	ft_putendl_fd	Outputs a string to a file descriptor, followed by a newline.
ft_calloc	Allocates memory for an array and sets to zero.	ft_putnbr_fd	Outputs an integer to a file descriptor.
ft_memchr	Locates the first occurrence of a character in a buffer.
ft_memcpy	Copies memory area from source to destination.
ft_memmove	Copies memory area, handling overlapping areas correctly.
ft_memcmp	Compares two buffers up to a certain number of bytes.
ft_strchr	Locates the first occurrence of a character in a string.
ft_strrchr	Locates the last occurrence of a character in a string.
ft_strncmp	Compares two strings up to a certain number of characters.
ft_strnstr	Locates a substring within another string, up to a certain length.
ft_strdup	Duplicate a string.
ft_strlcpy	Copies a string up to a certain size.
ft_strlcat	Concatenates strings with a specified size limit.
ft_atoi	Converts a string into an integer.