Recode functions from the standard C library, as well as other utility functions reusable throughout the cursus.
| Libft functions | Prototype | Definition |
|---|---|---|
| ft_isalpha | int ft_isalpha(int c); |
Tests for any character for which a-z or A-Z is true |
| ft_isdigit | int ft_isdigit(int c); |
Tests for any character for which 0-9 is true |
| ft_isalnum | int ft_isalnum(int c); |
Tests for any character for which az-AZ or 0-9 is true |
| ft_isascii | int ft_isascii(int c); |
Tests for any character for which in the ascii table is true |
| ft_isprint | int ft_isprint(int c); |
Tests for any printing character, including space (` ') |
| ft_strlen | size_t ft_strlen(const char *str); |
Counts the length of the string |
| ft_memset | void *ft_memset(void *buf, int c, size_t n); |
Fills a block of memory with a particular value |
| ft_bzero | void ft_bzero(void *buf, size_t n); |
Erases the data in the n bytes of the memory starting at the location pointed to by buf, by writing 0 |
| ft_memcpy | void *ft_memcpy(void *dst, const void *src, size_t n); |
Copies n bytes from memory area src to memory area dest |
| ft_memmove | void *ft_memmove(void *dst, const void *src, size_t n); |
Copies the data first to an intermediate buffer, then from the buffer to destination |
| ft_strlcpy | size_t ft_strlcpy(char *dst, const char *src, size_t n); |
Copies the data in the n bytes and concatenate strings respectively with allow support |
| ft_strlcat | size_t ft_strlcat(char *dst, const char *src, size_t n); |
Copies the data in the n bytes and concatenate strings respectively |
| ft_toupper | int ft_toupper(int c); |
Converts a lower-case letter to the corresponding upper-case letter |
| ft_tolower | int ft_tolower(int c); |
Converts a upper-case letter to the corresponding lower-case letter |
| ft_strchr | char *ft_strchr(const char *str, int c); |
Returns a pointer to the first occurrence of the character c in the string str |
| ft_strrchr | char *ft_strrchr(const char *str, int c); |
Returns a pointer to the last occurrence of the character c in the string str (begin the search by the end) |
| ft_strncmp | int ft_strncmp(const char *s1, const char *s2, size_t n); |
Compares the two strings s1 and s2 and returns an integer less than, equal to, or greater than zero if s1 is found |
| ft_memchr | void *ft_memchr(const void *str, int c, size_t n); |
Locates the first occurrence of the character c (converted to an unsigned char) in string str and return the string from it |
| ft_memcmp | int ft_memcmp(const void *s1, const void *s2, size_t n); |
Compares the data in the n bytes form string s1 against byte string s2, the function does not stop comparing after finding a null character |
| ft_strnstr | char *ft_strnstr(const char *big, const char *little, size_t len); |
Locates the first occurrence of the null-terminated string little in the string big, where not more than len characters are searched |
| ft_atoi | int ft_atoi(const char *str); |
Converts the string pointed to by str to int |
| ft_calloc | void *ft_calloc(size_t ecount, size_t esize); |
Allocates a block of memory for an array of num elements, each of them size bytes long, and initializes all its bits to zero |
| ft_strdup | char *ft_strdup(const char *str); |
Duplicate a string in a dynamic memory using malloc |
| ft_substr | char *ft_substr(const char *str, unsigned int start, size_t len); |
Extracts a substring out of str and returns it |
| ft_strjoin | char *ft_strjoin(char const *s1, char const *s2); |
Combines strings to a string in a dynamic memory using malloc |
| ft_strtrim | char *ft_strtrim(char const *s1, char const *set) |
Removes all set characters from the beginning and the end of a string |
| ft_split | char **ft_split(char const *str, char c); |
Splits a string into a series of tokens based on a particular delimiter |
| ft_itoa | char *ft_itoa(int n); |
Converts the int to a string char * |
| ft_strmapi | char *ft_strmapi(char const *str, char (*f)(unsigned int, char)); |
Applies the function f to each character of the string s to create a new string (with malloc()) resulting from successive applications of f |
| ft_striteri | void ft_striteri(char *str, void (*f)(unsigned int, char*)); |
Applies the function f to each character of the string passed as argument |
| ft_putchar_fd | void ft_putchar_fd(char c, int fd); |
Writes the character c on the file descriptor given |
| ft_putstr_fd | void ft_putstr_fd(char *str, int fd); |
Writes the string str on the file descriptor given |
| ft_putendl_fd | void ft_putendl_fd(char *str, int fd); |
Writes the string str on the file descriptor given with a new line a the end |
| ft_putnbr_fd | void ft_putnbr_fd(int n, int fd); |
Write the integer n to the given file descriptor given |