libft.h File Reference

#include <stdlib.h>
#include <unistd.h>
#include "get_next_line.h"
#include "vec.h"

Go to the source code of this file.

Data Structures
struct	s_list

Typedefs
typedef struct s_list	t_list

Functions
int	ft_atoi (const char *str)
	ASCII to integer.
void	ft_bzero (void *s, size_t n)
	Zero a byte string.
void *	ft_calloc (size_t count, size_t size)
	Allocate and zero.
int	ft_isalnum (int c)
	Is an alphabet or a number.
int	ft_isalpha (int c)
	Check if char is alphabet.
int	ft_isascii (int c)
	Check if char is ASCII.
int	ft_isdigit (int c)
	Check if char is digit.
int	ft_isprint (int c)
	Check if char is printable.
char *	ft_itoa (int n)
	Integer to ASCII.
void	ft_lstadd_back (t_list **lst, t_list *node)
	List add back.
void	ft_lstadd_front (t_list **lst, t_list *node)
	List add front.
void	ft_lstclear (t_list **lst, void(*del)(void *))
	Clear list.
void	ft_lstdelone (t_list *lst, void(*del)(void *))
	Delete node.
void	ft_lstiter (t_list *lst, void(*f)(void *))
	Iterate list.
t_list *	ft_lstlast (t_list *lst)
	Last node in a list.
t_list *	ft_lstmap (t_list *lst, void *(*f)(void *), void(*del)(void *))
	List map.
t_list *	ft_lstnew (void *content)
	Create a new node.
int	ft_lstsize (t_list *lst)
	Size of a list.
char *	ft_ltoa (long n)
	Long to ASCII.
void *	ft_memchr (const void *s, int c, size_t n)
	Scan memory for a character.
int	ft_memcmp (const void *s1, const void *s2, size_t n)
	Memory compare.
void *	ft_memcpy (void *dst, const void *src, size_t n)
	Copies memory to destination.
void *	ft_memmove (void *dst, const void *src, size_t len)
	Copy memory area.
void *	ft_memset (void *b, int c, int len)
	Fill memory area with a contant byte.
void	ft_putchar_fd (char c, int fd)
	Writes char to file.
void	ft_putendl_fd (char *s, int fd)
	Writes new line to file.
void	ft_putnbr_fd (int n, int fd)
	Writes number to file.
void	ft_putstr_fd (char *s, int fd)
	Writes string to file.
char **	ft_split (char const *s, char c)
	Splits string to substrings.
char *	ft_strchr (const char *s, int c)
	Search a character.
char *	ft_strdup (const char *s1)
	Duplicates a string.
void	ft_striteri (char *s, void(*f)(unsigned int, char *))
	Calls a function for each char of a string.
char *	ft_strjoin (char const *s1, char const *s2)
	Joins two strings together.
size_t	ft_strlcat (char *dst, const char *src, size_t dstsize)
	Adds string to end of a string.
size_t	ft_strlcpy (char *dst, const char *src, size_t dstsize)
	Copies string to destination.
size_t	ft_strlen (const char *s)
	Length of the string.
char *	ft_strmapi (char const *s, char(*f)(unsigned int, char))
	Create a copy of a string passing each char through a function.
int	ft_strncmp (const char *s1, const char *s2, size_t n)
	String compare.
char *	ft_strnstr (const char *haystack, const char *needle, size_t len)
	Search string from string.
char *	ft_strrchr (const char *s, int c)
	Search a character starting from the end.
char *	ft_strtrim (char const *s1, char const *set)
	Trim start and end of a string.
char *	ft_substr (char const *s, unsigned int start, size_t len)
	Gets a piece of string out of a string.
int	ft_tolower (int c)
	Changes char to lowercase.
int	ft_toupper (int c)
	Changes char to uppercase.
char *	ft_ulongtohex (unsigned long n)
	Unsigned long to lowercase hexadesimal string.

Typedef Documentation

t_list

typedef struct s_list t_list

Function Documentation

ft_atoi()

int ft_atoi

(

const char *

str

)

ASCII to integer.

Returns integer from number string.

Parameters

str	Number as a string

Returns

int Number as a integer

Definition at line 15 of file ft_atoi.c.

ft_bzero()

void ft_bzero	(	void *	s,
		size_t	n
	)

Zero a byte string.

Zeroes n number of bytes in memory starting from location pointed by s.

Parameters

s	Pointer to memory
n	Number of bytes

Definition at line 15 of file ft_bzero.c.

ft_calloc()

void * ft_calloc	(	size_t	count,
		size_t	size
	)

Allocate and zero.

Allocates memory and sets every byte to 0.

Parameters

count	How many elements
size	Size of a element (eg. 4 bytes)

Returns

void* Pointer to the allocated memory

Attention

Allocates memory

Definition at line 15 of file ft_calloc.c.

ft_isalnum()

int ft_isalnum

(

int

c

)

Is an alphabet or a number.

Checks if character is an alphabet or a number.

Parameters

c	Character as an ASCII desimal

Returns

int 1 if true, 0 if false

Definition at line 15 of file ft_isalnum.c.

ft_isalpha()

int ft_isalpha

(

int

c

)

Check if char is alphabet.

Parameters

c

Returns

int

Definition at line 13 of file ft_isalpha.c.

ft_isascii()

int ft_isascii

(

int

c

)

Check if char is ASCII.

Parameters

c

Returns

int

Definition at line 13 of file ft_isascii.c.

ft_isdigit()

int ft_isdigit

(

int

c

)

Check if char is digit.

Parameters

c

Returns

int

Definition at line 13 of file ft_isdigit.c.

ft_isprint()

int ft_isprint

(

int

c

)

Check if char is printable.

Parameters

c

Returns

int

Definition at line 13 of file ft_isprint.c.

ft_itoa()

char * ft_itoa

(

int

n

)

Integer to ASCII.

Returns a number as a string.

Parameters

n

Number

Returns

char* Number n as a string

Attention

Allocates memory

Definition at line 57 of file ft_itoa.c.

ft_lstadd_back()

void ft_lstadd_back	(	t_list **	lst,
		t_list *	node
	)

List add back.

Parameters

lst
new

Definition at line 15 of file ft_lstadd_back.c.

ft_lstadd_front()

void ft_lstadd_front	(	t_list **	lst,
		t_list *	node
	)

List add front.

Parameters

lst
new

Definition at line 15 of file ft_lstadd_front.c.

ft_lstclear()

void ft_lstclear	(	t_list **	lst,
		void(*)(void *)	del
	)

Clear list.

Parameters

lst
del

Definition at line 15 of file ft_lstclear.c.

ft_lstdelone()

void ft_lstdelone	(	t_list *	lst,
		void(*)(void *)	del
	)

Delete node.

Parameters

lst
del

Definition at line 15 of file ft_lstdelone.c.

ft_lstiter()

void ft_lstiter	(	t_list *	lst,
		void(*)(void *)	f
	)

Iterate list.

Parameters

lst
f

Definition at line 15 of file ft_lstiter.c.

ft_lstlast()

t_list * ft_lstlast

(

t_list *

lst

)

Last node in a list.

Parameters

lst

Returns

t_list*

Definition at line 15 of file ft_lstlast.c.

ft_lstmap()

t_list * ft_lstmap	(	t_list *	lst,
		void *(*)(void *)	f,
		void(*)(void *)	del
	)

List map.

Parameters

lst
f
del

Returns

t_list*

Definition at line 15 of file ft_lstmap.c.

ft_lstnew()

t_list * ft_lstnew

(

void *

content

)

Create a new node.

Parameters

content

Returns

t_list*

Definition at line 15 of file ft_lstnew.c.

ft_lstsize()

int ft_lstsize

(

t_list *

lst

)

Size of a list.

Parameters

lst

Returns

int

Definition at line 15 of file ft_lstsize.c.

ft_ltoa()

char * ft_ltoa

(

long

n

)

Long to ASCII.

Returns a number as a string.

Parameters

n	long Number

Returns

char* Number n as a string

Attention

Allocates memory

Definition at line 41 of file ft_ltoa.c.

ft_memchr()

void * ft_memchr	(	const void *	s,
		int	c,
		size_t	n
	)

Scan memory for a character.

Scans n bytes of memory from address s for a character c.

Parameters

s	Starting address
c	Character to find
n	Till how many bytes from the starting address s

Returns

void* Address of the found character or a NULL if character not found

Definition at line 15 of file ft_memchr.c.

ft_memcmp()

int ft_memcmp	(	const void *	s1,
		const void *	s2,
		size_t	n
	)

Memory compare.

Compares n number of bytes from two addresses s1 and s1.

Parameters

s1	First address
s2	Second address
n	Number of bytes

Returns

int If s1 and s2 are equal returns 0. Else returns difference of the byte that was not equal.

Definition at line 15 of file ft_memcmp.c.

ft_memcpy()

void * ft_memcpy	(	void *	dst,
		const void *	src,
		size_t	n
	)

Copies memory to destination.

Copies n bytes of memory from source to destination.

Parameters

dst	Address of the destination
src	Address of the source

Returns

void* Address of destination

Attention

Does not handle overlapping.

Definition at line 15 of file ft_memcpy.c.

ft_memmove()

void * ft_memmove	(	void *	dst,
		const void *	src,
		size_t	len
	)

Copy memory area.

Copies len bytes of memory from source to destination.

Parameters

dst	Address of the destination
src	Address of the source
len	Number of bytes

Returns

void* Address of the destination

Definition at line 15 of file ft_memmove.c.

ft_memset()

void * ft_memset	(	void *	b,
		int	c,
		int	len
	)

Fill memory area with a contant byte.

Fills len number of bytes of memory with c.

Parameters

b	Memory address
c	Value to set the bytes to
len	Number of bytes

Returns

void* Address of b

Definition at line 13 of file ft_memset.c.

ft_putchar_fd()

void ft_putchar_fd	(	char	c,
		int	fd
	)

Writes char to file.

Parameters

c
fd

Definition at line 15 of file ft_putchar_fd.c.

ft_putendl_fd()

void ft_putendl_fd	(	char *	s,
		int	fd
	)

Writes new line to file.

Parameters

s
fd

Definition at line 15 of file ft_putendl_fd.c.

ft_putnbr_fd()

void ft_putnbr_fd	(	int	n,
		int	fd
	)

Writes number to file.

Parameters

n
fd

Definition at line 29 of file ft_putnbr_fd.c.

ft_putstr_fd()

void ft_putstr_fd	(	char *	s,
		int	fd
	)

Writes string to file.

Parameters

s
fd

Definition at line 15 of file ft_putstr_fd.c.

ft_split()

char ** ft_split	(	char const *	s,
		char	c
	)

Splits string to substrings.

Splits string s by character c to substrings.

Parameters

s	String
c	Character

Returns

char** Array of substrings

Attention

Allocates memory

Definition at line 71 of file ft_split.c.

ft_strchr()

char * ft_strchr	(	const char *	s,
		int	c
	)

Search a character.

Searches a character from a string and returns it's address.

Parameters

s	String
c	Character

Returns

char* Address of the found character or NULL if not found

Definition at line 15 of file ft_strchr.c.

ft_strdup()

char * ft_strdup

(

const char *

s1

)

Duplicates a string.

Parameters

s1	String to make a copy from

Returns

char* Address of the new string

Definition at line 15 of file ft_strdup.c.

ft_striteri()

void ft_striteri	(	char *	s,
		void(*)(unsigned int, char *)	f
	)

Calls a function for each char of a string.

Function f takes the index and address of a character in the string.

Parameters

s	String
f	Function

Definition at line 15 of file ft_striteri.c.

ft_strjoin()

char * ft_strjoin	(	char const *	s1,
		char const *	s2
	)

Joins two strings together.

Parameters

s1	String 1
s2	Strong 2

Returns

char* New string containing s1 and s2

Attention

Allocates memory

Definition at line 15 of file ft_strjoin.c.

ft_strlcat()

size_t ft_strlcat	(	char *	dst,
		const char *	src,
		size_t	dstsize
	)

Adds string to end of a string.

Adds source to end of the destination limited by the destination size.

Parameters

dst	String
src	String
dstsize	Size of the destination

Returns

size_t Sum of the lengths of source and destination

Definition at line 15 of file ft_strlcat.c.

ft_strlcpy()

size_t ft_strlcpy	(	char *	dst,
		const char *	src,
		size_t	dstsize
	)

Copies string to destination.

Copies string to destination and makes sure it's null terminated.

Parameters

dst	String
src	String
dstsize	Size of the destination

Returns

size_t Lenght of the source

Definition at line 15 of file ft_strlcpy.c.

ft_strlen()

size_t ft_strlen

(

const char *

s

)

Length of the string.

Parameters

s

String

Returns

size_t Length of the string

Definition at line 15 of file ft_strlen.c.

ft_strmapi()

char * ft_strmapi	(	char const *	s,
		char(*)(unsigned int, char)	f
	)

Create a copy of a string passing each char through a function.

Creates a new string and assigns the values to that string by taking a character from the string s and passing it trough the function f. Function f takes a character and index of that character as parameters.

Parameters

s	String
f	Function

Returns

char* New string

Attention

Allocates memory

Definition at line 15 of file ft_strmapi.c.

ft_strncmp()

int ft_strncmp	(	const char *	s1,
		const char *	s2,
		size_t	n
	)

String compare.

Compares two strings and returns the difference of the first missmatch character or 0 if strings are equal.

Parameters

s1	String
s2	String
n	Number of characters to check

Returns

int 0 if equal else the difference of the first missmatch character

Definition at line 15 of file ft_strncmp.c.

ft_strnstr()

char * ft_strnstr	(	const char *	haystack,
		const char *	needle,
		size_t	len
	)

Search string from string.

Searches string from a string and returns the address of the start of the found string.

Parameters

haystack	String
needle	String
len	How many char to check

Returns

char* Address of the found string

Definition at line 18 of file ft_strnstr.c.

ft_strrchr()

char * ft_strrchr	(	const char *	s,
		int	c
	)

Search a character starting from the end.

Searches a character from a string and returns it's address.

Parameters

s	String
c	Character

Returns

char* Address of found char or NULL if not found

Definition at line 15 of file ft_strrchr.c.

ft_strtrim()

char * ft_strtrim	(	char const *	s1,
		char const *	set
	)

Trim start and end of a string.

Trims set of characters from start and end of a string.

Parameters

s1	String
set	Set of character to trim from the string

Returns

char* Trimmed string

Attention

Allocates memory

Definition at line 15 of file ft_strtrim.c.

ft_substr()

char * ft_substr	(	char const *	s,
		unsigned int	start,
		size_t	len
	)

Gets a piece of string out of a string.

Gets len length piece of string from a strung starting at index start.

Parameters

s	String
start	Starting index
len	How many chars

Returns

char* Address of the new substring

Attention

Allocates memory

Definition at line 22 of file ft_substr.c.

ft_tolower()

int ft_tolower

(

int

c

)

Changes char to lowercase.

Parameters

c

Returns

int

Definition at line 13 of file ft_tolower.c.

ft_toupper()

int ft_toupper

(

int

c

)

Changes char to uppercase.

Parameters

c

Returns

int

Definition at line 13 of file ft_toupper.c.

ft_ulongtohex()

char * ft_ulongtohex

(

unsigned long

n

)

Unsigned long to lowercase hexadesimal string.

Parameters

n	unsigned long

Returns

char* hexadesimal string in lowercase

Attention

Allocates memory

Definition at line 47 of file ft_ulongtohex.c.