idleira / libft

a custom c library created to implement commonly used functions from scratch.

libft - @42Wolfsburg

description

libft is the first step in the 42 curriculum.

at 42, we're encouraged to understand data structures and algorithms deeply.

that's why this project involves re-making of the standard c library functions with addition of some extras.

this project is crucial because this library will be used in all our projects later on.

these are some resources i used:

• c references from geeksforgeeks

• c references from tutorialspoint

• c library references from cplusplus

• this learn c programming course

usage

1. clone this repository: git clone [e-mail]:idleira/libft.git libft && cd libft;

2. make the project: • make to compile mandatory part of the project; • make bonus to compile with bonus functions.

3. to use the library, complie your file with the .a library file: gcc your_file.c libft/libft.a;

4. run your executable with ./a.out;

5. to clean up:

   • use make clean to remove .o files;

   • use make fclean to clean up the project directory by removing all generated files.

library contents

libft contains 43 functions.

→ all function names start with ft_ (stands for "forty two").

1. c library: some of the standard c functions;

ft_isalpha	ft_toupper	ft_memcpy	ft_strrchr
ft_isdigit	ft_atoi	ft_memmove	ft_strnstr
ft_isalnum	ft_bzero	ft_memcmp	ft_strncmp
ft_isascii	ft_calloc	ft_memcmp	ft_strncmp
ft_isprint	ft_memset	ft_strdup	ft_strlen
ft_tolower	ft_memchr	ft_strchr	ft_strlcat

2. extra: functions that will be useful for later projects at 42;

ft_itoa	ft_strtrim	ft_putnbr_fd	ft_putendl_fd
ft_split	ft_strmapi	ft_putchar_fd	ft_striteri
ft_strjoin	ft_substr	ft_putstr_fd

3. bonus: functions useful for linked list manipulation.

ft_lstsize	ft_lstnew	ft_lstadd_back	ft_lstiter
ft_lstlast	ft_lstmap	ft_lstadd_front	ft_lstdelone

my final grade