libft

my own library of self-written useful C functions

compiling

At the root of the repository, run make. You can add the path to the repository to your library search path or link the compiled library libft.a directly to your executable. Let me know if you run into any problems.

included functions

return	name	params	description
int	ft_printf	const char *format, ...	rewritten system-function
int	ft_dprintf	const int fd, const char *format, ...	rewritten system-function
int	get_next_line	const int fd, char **line	reads from fd and saves one line (excl. '\n' character) in line
long long int	ft_atoi	const char *s	rewritten system-function
char*	ft_itoa	long long int n	converts n to corresponding string
char*	ft_itoa_base_unsgnd	unsigned long long int n, int base, int is_cap, unsigned int len	same as itoa but then with different base, is_cap = 1 for capital letters when base > 10
long long int	ft_absolute	long long int nbr	returns the absolute value of nbr with base 10
unsigned int	ft_absolute_doublelen	long double ld, unsigned int prcs	returns the length of the absolute of ld with prcs (precision) in bytes
unsigned int	ft_absolute_nbrlen	long long int nbr, int base	returns the length of the absolute of nbr with base
int	ft_power	int base, unsigned int exp	returns base ^ exp
double	ft_double_power	double base, int exp	returns base ^ exp
long double	ft_ldouble_power	long double base, int exp	returns base ^ exp
void	ft_bzero	void *s, size_t n	rewritten system-function
void	ft_swap_ptr	void **ptr1, void **ptr2	swaps ptr1 and ptr2
void	ft_lstadd	t_list **alst, t_list *item	adds an item to linked list with head alst
void	ft_lstdel	t_list **alst, void (*del)(void*,size_t)	uses del to delete linked list with head alst
void	ft_lstdelone	t_list **alst, void (*del)(void*,size_t)	uses del to delete linked list item alst
void	ft_lstiter	t_list *lst, void (*f)(t_list *elem)	iterates over lst and applies f to each node
t_list*	ft_lstmap	t_list *lst, t_list *(*f)(t_list *elem)	iterates over lst, applies f to each node and returns a "fresh" list with the new nodes
t_list*	ft_lstnew	void const *content, size_t content_size	allocates and returns a "fresh" node for content
void	ft_lstadd_back	t_list **alst, t_list *item	adds an item to the end of alst
void	ft_lstfold	t_list **alst, t_list *start, t_list *end	folds the list alst at start and end and deletes all nodes in between
void	ft_lstadd_behind	t_list **alst, t_list *node, t_list *new_nd	adds new_node behind node to alst
void	ft_lstadd_before	t_list **alst, t_list *node, t_list *new_nd	adds new_node before node to alst
size_t	ft_lstcount	t_list *lst	counts nodes of lst
t_list*	ft_lstrev	t_list **alst	reverses order of linked list (*alst)
void	ft_delete	void *ptr, size_t size	sets size bytes at ptr to 0 and frees ptr
void*	ft_memalloc	size_t size	allocates and returns "fresh" pointer to memory of size size
void*	ft_memccpy	void *dst, const void *src, int c, size_t n	rewritten system-function
void*	ft_memchr	const void *s, int c, size_t n	rewritten system-function
int	ft_memcmp	const void *s1, const void *s2, size_t n	rewritten system-function
void*	ft_memcpy	void *dst, const void *src, size_t n	rewritten system-function
void	ft_memdel	void **ap	frees memory at *ap and sets pointer to NULL
void*	ft_memmove	void *dst, const void *src, size_t len	rewritten system-function
void*	ft_memset	void *b, int c, size_t len	rewritten system-function
void*	ft_memdup	void *ptr, size_t size	allocates and returns "fresh" memory of size and copies size bytes from ptr into it
char*	ft_strcat	char *s1, const char *s2	rewritten system-function
char*	ft_strchr	const char *s, int c	rewritten system-function
void	ft_strclr	char *s	sets all characters of s to '\0'
int	ft_strcmp	const char *s1, const char *s2	rewritten system-function
char*	ft_strcpy	char *dst, const char *src	rewritten system-function
void	ft_strdel	char **as	deletes string at *as and sets the pointer to NULL
void	ft_strarrdel	char ***arr	deletes an array of strings and sets all characters and pointers to '\0' / NULL
char*	ft_strdup	const char *s	rewritten system-function
int	ft_strequ	const char *s1, const char *s2	returns 1 if s1 == s2 and returns 0 if s1 != s2
void	ft_striter	char *s, void(*f)(char*)	iterates over s and applies f to each character
void	ft_striteri	char *s, void(*f)(unsigned int, char*)	applies f to each character of s and passing its index as first argument
char*	ft_strjoin	const char *s1, const char *s2	returns a "fresh" string with s1 and s2 concatenated
size_t	ft_strlcat	char *s1, const char *s2, size_t size	rewritten system-function
size_t	ft_strlen	const char *s	rewritten system-function
char*	ft_strmap	const char *s, char(*f)(char)	applies f to each character of s and returns "fresh" string with the resulting characters
char*	ft_strmapi	const char *s, char (*f)(unsigned int, char)	applies f to character with given index of s and returns "fresh" string with the resulting characters
char*	ft_strncat	char *s1, const char *s2, size_t n	rewritten system-function
int	ft_strncmp	const char *s1, const char *s2, size_t n	rewritten system-function
char*	ft_strncpy	char *dst, const char *src, size_t len	rewritten system-function
int	ft_strnequ	const char *s1, const char *s2, size_t n	like ft_strequ but only compares the first n bytes
char*	ft_strnew	size_t size	creates new string of size and initializes all characters to '\0'
char*	ft_strnstr	const char *hay, const char *needle, size_t n	rewritten system-function
char*	ft_strrchr	const char *s, int c	rewritten system-function
char*	*ft_strsplit	const char *s, char c	splits s at all occurrences of c and returns the resulting array of strings
char*	ft_strstr	const char *hay, const char *needle	rewritten system-function
char*	ft_strsub	const char *s, unsigned int start, size_t len	creates a new string with the first len bytes of s substituted by the first len bytes of start
char*	ft_strtrim	const char *s	trims white-spaces of the beginning and end of s and returns its result in a "fresh" string
char*	ft_strrev	char *s	reverses the characters of s
void	ft_putchar	char c	rewritten system-function
void	ft_putchar_fd	char c, int fd	writes c in fd
void	ft_putnbr	int n	writes string representing n in stdout
void	ft_putnbr_fd	int n, int fd	writes string representing n in fd
void	ft_putendl	const char *s	writes s with added newline in stdout
void	ft_putendl_fd	const char *s, int fd	writes s with added newline in fd
void	ft_putstr	const char *s	writes s in stdout
void	ft_putstr_fd	const char *s, int fd	writes s in fd
ssize_t	ft_putnstr_fd	const char *str, size_t len, int fd	writes first len bytes of str in fd
int	ft_isint	char * str	checks if str represents an integer
int	ft_isalnum	int c	rewritten system-function
int	ft_isalpha	int c	rewritten system-function
int	ft_isascii	int c	rewritten system-function
int	ft_isdigit	int c	rewritten system-function
int	ft_isprint	int c	rewritten system-function
int	ft_islower	int c	rewritten system-function
int	ft_isupper	int c	rewritten system-function
int	ft_tolower	int c	rewritten system-function
int	ft_toupper	int c	rewritten system-function

contributors

| https://github.com/ItsWendell (ft_printf and ft_dprintf)