My implementation of some of the Standard C Library functions including some additional ones.
Libft is an individual project at WeThinkCode_ that requires us to re-create some standard C library functions including some additional ones that can be used later to build a library of useful functions for the rest of the program.
Disclaimer: Reinventing the wheel is bad, WeThinkCode_ makes us do this just so we can have a deeper understanding of data structures and basic algorithms. At WeThinkCode_ we're not allowed to use some standard libraries on our projects, so we have to keep growing this library with our own functions as we go farther in the program.
There are 4 sections:
- Libc Functions: Some of the standard C functions
- Additional functions: Functions WeThinkCode_ deems will be useful for later projects
- Bonus Functions: Functions WeThinkCode_ deems will be useful for linked list manipulation
- Personal Functions: Functions I believe will be useful later.
| Libc functions | Additional functions | Bonus Functions | Personal Functions |
|---|---|---|---|
| memset | ft_memalloc | ft_lstnew | ft_isupper |
| bzero | ft_memdel | ft_lstdelone | ft_islower |
| memcpy | ft_strnew | ft_lstdel | |
| memccpy | ft_strdel | ft_lstadd | |
| memmove | ft_strclr | ft_lstiter | |
| memchr | ft_striter | ft_lstmap | |
| memcmp | ft_striteri | ||
| strlen | ft_strmap | ||
| strdup | ft_strmapi | ||
| strcpy | ft_strequ | ||
| strncpy | ft_strnequ | ||
| strcat | ft_strsub | ||
| strlcat | ft_strjoin | ||
| strchr | ft_strtrim | ||
| strrchr | ft_strsplit | ||
| strstr | ft_itoa | ||
| strnstr | ft_putchar | ||
| strcmp | ft_putstr | ||
| strncmp | ft_putendl | ||
| atoi | ft_putnbr | ||
| isalpha | ft_putchar_fd | ||
| isdigit | ft_putstr_fd | ||
| isalnum | ft_putendl_fd | ||
| isascii | ft_putnbr_fd | ||
| isprint | |||
| toupper | |||
| tolower |
My code is not the best, but it passed all the WeThinkCode_ tests successfully.
The goal is to create a library called libft.a from the source files so I can later use that library from other projects at WeThinkCode_.
To create that library, after downloading/cloning this project, cd into the project, call make:
git clone https://github.com/martian1431/libft.git
cd libft
make
You should see a libft.a file and some object files (.o).
Now to clean up (removing the .o files and the .c files from the root), call make clean
I added an example file called example.c, it's using the function ft_putstr to print "WeThinkCode_ is doing the most!!!" to the screen.
If you try to compile it with gcc using gcc example.c you will get an undefined symbol error for ft_putstr.
You have to include the library when compiling:
gcc example.c libft.a
-libft.a is the library created after running make
That's it. Now run it using ./a.out
This is a list of my projects that use Libft extensively:
That's it! If you're having some problems, just send me a tweet.
Enjoy.