LIBFT

Introduction

This project aims to code a C library with usual functions.

• Part 1 - re-code a set of the libc functions, as defined in their man
• Part 2 - code functions not included in the libc
• Bonus part - code functions to manipulate lists

Part 1 - Libc functions

Function	Description
ft_isalpha	Checks for an alphabetic character.
ft_isdigit	Checks for a digit (0 through 9).
ft_isalnum	Checks for an alphanumeric character; it is equivalent to (isalpha(c) || isdigit(c)).
ft_isascii	Checks whether c is a 7-bit unsigned char value that fits into the ASCII character set.
ft_isprint	Checks for any printable character including space.
ft_strlen	Calculates the length of the string pointed to by s, excluding the terminating null byte.
ft_memset	Fills the first n bytes of the memory area pointed to by s with the constant byte c.
ft_bzero	Set n bytes of s to 0.
ft_memcpy	Copies n bytes from memory area src to memory area dst. The memory areas must not overlap. Use ft_memmove if the memory areas do overlap.
ft_memmove	Copies n bytes from memory area src to memory area dest. The memory area may overlap. The copy is always done in a non-destructive manner.
ft_strlcpy	Copies up to size - 1 characters from the NUL-terminated string src to dst, NUL-terminating the result.
ft_strlcat	Appends the NUL-terminated string src to the end of dst. It will append at most size - strlen(dst) - 1 bytes, NUL-terminating the result.
ft_toupper	Convert a lowercase letter to uppercase.
ft_tolower	Convert a uppercase letter to lowercase.
ft_strchr	Locate character in string and returns a pointer to the first occurrence.
ft_strrchr	Locate character in string and returns a pointer to the last occurrence.
ft_strncmp	Compares the two strings s1 and s2, only the first (at most) n bytes of them.
ft_memchr	Scans the initial n bytes of the memory area pointed by s for the first instance of c.
ft_memcmp	Compares the first n bytes of the memory areas s1 and s2.
ft_strnstr	Locate the first occurrence of the null-terminated substring in the bigstring, where not more than len characters are searched.
ft_atoi	Converts the initial portion of the string pointed to by str to int.
ft_calloc	Allocate and free dynamic memory, setting the memory to zero.
ft_strdup	Allocated and returns a duplication of the str.

Part 2 - Additional functions

Function	Description
ft_substr	Allocates and returns a substring from the string s.
ft_strjoin	Allocates and returns a new string, which is the result of the concatenation of 's1' and 's2'.
ft_strtrim	Allocates and returns a copy of 's1' with the characters specified in 'set' removed from the beginning and the end of the string.
ft_split	Allocates and returns an array of strings obtwained by splitting 's' using the character 'c' as a delimiter.
ft_itoa	Allocates and returns a string representing the integer received as an argument.
ft_strmapi	Applies the function 'f' to each character of the string 's' to create a new string resulting from successive applications of 'f'.
ft_striteri	Applies the function 'f' to each character of the string passed as argument, and passing its index as first argument.
ft_putchar_fd	Outputs the character 'c' to the given file descriptor.
ft_putstr_fd	Outputs the string 's' to the given file descriptor.
ft_putendl_fd	Outputs the string 's' to the given file descriptor, followed by a newline.
ft_putnbr_fd	Outputs the integer 'n' to the given file descriptor.

Bonus part

Function	Description
ft_lstnew	Allocates and returns a new element.
ft_lstadd_front	Adds the element ’new’ at the beginning of the list.
ft_lstsize	Counts the number of elements in a list.
ft_lstlast	Returns the last element of the list.
ft_lstadd_back	Adds the element ’new’ at the end of the list.
ft_lstdelone	Takes as a parameter an element and frees the memory of the element’s content using the function ’del’ given as a parameter and free the element.
ft_lstclear	Deletes and frees the given element and every successor of that element, using the function ’del’ and free(3).
ft_lstiter	Iterates the list ’lst’ and applies the function ’f’ to the content of each element.
ft_lstmap	Iterates the list ’lst’ and applies the function ’f’ to the content of each element. Creates a new list resulting of the successive applications of the function ’f’. The ’del’ function is used to delete the content of an element if needed.