libft3

42 Libft (pdf)

Part 1 - Libc functions

Name	Description	Name	Description
memset	Fills the data in the n bytes of the memory, by write c type to that area.	strrchr	Scans the string for the first instance of the c type from the last byte('\0') to the first. Returns a pointer to the matching byte or NULL if the byte is not found.
bzero	Erases the data in the n bytes of the memory, by write zeros('\0') to that area.	strnstr	Scans n bytes of the string for the first instance of the substr string. Returns a pointer to the frist character of the matching strings.
memcpy	Copies n bytes of the memory from source to dest.	strncmp	Compares n bytes of the string areas in s1 and s2.
memccpy	Copies n bytes of the memory from source to dest, stops if the c type is found	atoi	Converts a string with digits to a integer.
memmove	Copies n bytes of the memory from source to dest, the copy is done in reverse order to avoid overlapping.	isalpha	Check if character is an alphabet letter.
memchr	cans n bytes of the memory for the first instance of c type. Returns a pointer to the matching byte or NULL if c is not found.	isdigit	Check if character is decimal digit letter.
memcmp	Compares n bytes of the memory areas in s1 and s2.	isalnum	Check if character is an alphabet letter or decimal digit letter.
strlen	Returns the length of the string.	isascii	Check if character is an ascii(0 - 127) letter.
strlcpy	Copies size -1(reserved to NULL). Return the total length of the string thats tried to create(source).	isprint	Check if character is a pritable letter.
strlcat	Appends the string source to the dest string where size -1 is the total size of string created. Returns the total length of the string thats was tried created, dest length + source length or size + source length if size is fewer than dest length.	toupper	Convert the character from lowercase to uppercase.
strchr	Scans the string for the first instance of the c type. Returns a pointer to the matching byte or NULL if c is not found.	tolower	Convert the character from uppercase to lowercase.

Using malloc

Name	Description
calloc	Allocates size bytes and sets the allocate memory with zeros('\0'). Returns a pointer to the first byte of the allocated memory.
strdup	Allocates and copies the given string to the allocated string. Returns a pointer to the new string.

Part 2 - Additional functions

Name	Description
ft_substr	Allocates and copies a substring terminated in NULL of the given string from start until len.
ft_strjoin	Allocates s1 len + s2 len and copies the s1 to the allocated string and then appends s2 to it. Returns a pointer to the start of the new string.
ft_strtrim	Allocates and copies the given string without the set in the start and the end of the new string.
ft_split	Allocates a array of strings all terminated by '\0' including the array itself (NULL)obtained by spliting s using the character c as a delimiter.
ft_itoa	Returns a allocated string converted from a integer.
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_putchar_fd	Output a character on a given filedescriptor fd.
ft_putstr_fd	Output a string on a given filedescriptor fd.
ft_putendl_fd	Output a string with a linebreak in the end on a given filedescriptor fd.
ft_putnbr_fd	Output a integer value on a given filedescriptor fd.

Part 2 - Bonus part

Name	Description
ft_lstnew	Allocates and returns a new element. The variable 'content' is initialized with the value of the parameter 'content'. The variable 'next' ins initialized to NULL.
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 free the given element and every sucessor of that element, using the function 'del' and free.
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.