At 1337 we are not allowed using functions that already exist, so this is why LIBFT came for. We must recreate some standard C library functions including some additional ones.
- Part 1 : Reimplementation of standard C library functions
strcpy
strcat
strlen
isalpha
isdigit
isalnum
isascii
isprint
strlen
memset
bzero
memcpy
memmove
strlcpy
strlcat
toupper
tolower
strchr
strrchr
strncmp
memchr
memcmp
strnstr
atoi
calloc
strdup
- Part 2 : Additional functions
ft_substr
Allocates (with malloc(3)) and returns a substring from the string ’s’. The substring begins at index ’start’ and is of maximum size ’len’.
ft_strjoin
Allocates (with malloc(3)) and returns a new string, which is the result of the concatenation of ’s1’ and ’s2’.
ft_strtrim
Allocates (with malloc(3)) 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 (with malloc(3)) and returns an array of strings obtained by splitting ’s’ using the character ’c’ as a delimiter. The array must end with a NULL pointer.
ft_itoa
Allocates (with malloc(3)) and returns a string representing the integer received as an argument. Negative numbers must be handled.
ft_strmapi
Applies the function ’f’ to each character of the string ’s’, and passing its index as first argument to create a new string (with malloc(3)) resulting from successive applications of ’f’.
ft_striteri
Applies the function ’f’ on each character of the string passed as argument, passing its index as first argument. Each character is passed by address to ’f’ to be modified if necessary.
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.
ft_putnbr_fd
Outputs the integer ’n’ to the given file descriptor.
- Part 3 : Bonus
ft_lstnew
Allocates (with malloc(3)) and returns a new node. The member variable ’content’ is initialized with the value of the parameter ’content’. The variable ’next’ is initialized to NULL.
ft_lstadd_front
Adds the node ’new’ at the beginning of the list.
ft_lstsize
Counts the number of nodes in a list.
ft_lstlast
Returns the last node of the list.
ft_lstadd_back
Adds the node ’new’ at the end of the list.
ft_lstdelone
Takes as a parameter a node and frees the memory of the node’s content using the function ’del’ given as a parameter and free the node. The memory of ’next’ must not be freed.
ft_lstclear
Deletes and frees the given node and every successor of that node, using the function ’del’ and free(3). Finally, the pointer to the list must be set to NULL.
ft_lstiter
Iterates the list ’lst’ and applies the function ’f’ on the content of each node.
ft_lstmap
Iterates the list ’lst’ and applies the function ’f’ on the content of each node. Creates a new list resulting of the successive applications of the function ’f’. The ’del’ function is used to delete the content of a node if needed.