Libft is the foundation for all projects in the 42 curriculum. FT stands for the Forty-Two library. This is a recreation of all of the most fundamental functions from C's standard libraries. It also includes multiple data structure implementations. This library can be compiled modularly!
According to the rules of the libft project, the only allowed functions are malloc(), free(), and write(). Any other functions you might want to use must be recreated yourself.
To set up this project, run git clone https://github.com/mint42/libft in the folder of your choosing. Then run the make command in the root of the repository. The Makefile will build the libft.a file which can be linked to a test main or project. All of the necessary public include files are symlinked at compile time to the includes folder (or whatever folder is defined by SYM_INCLUDES_DIR in config.mk) at the root of the repository for ease of linking.
By default, libft will compile all modules into a single .a file. To request that only certain modules be compiled, before running the make command, set up a file named libft_mods.mk in your repository's parent directory. This file should contain a variable named MODS which is a list of the requested modules. The libft's Makefile will handle its own dependencies, so no need to include any module that a project does not explicitly need. If you're unfamiliar with Makefile format, feel free to use this template and comment out what you don't need:
# Makefile comment
MODS += ft_binarytree
MODS += ft_conv
MODS += ft_double_array
MODS += ft_list
MODS += ft_math
MODS += ft_mem
MODS += ft_parse
MODS += ft_printf
MODS += ft_put
MODS += ft_queue
MODS += ft_stack
MODS += ft_str
MODS += ft_utils
MODS += get_next_line
| MODULE | DESCRIPTION | DEPENDENCIES |
|---|---|---|
| ft_binarytree | void * binary tree implementation | ft_mem |
| ft_conv | Data type conversions | ft_math, ft_str, ft_utils |
| ft_double_array | void * Double array implementation | ft_mem, ft_printf, ft_str |
| ft_list | void * linked list implemenation | ft_mem |
| ft_math | Math operations | |
| ft_mem | void * memory manipulation | |
| ft_parse | char * word and whitespace parsing | ft_utils |
| ft_printf | System printf() implementation | ft_conv, ft_mem, ft_str, ft_utils |
| ft_put | Wrappers for write() | ft_str |
| ft_queue | void * queue implementation | ft_mem |
| ft_stack | void * stack implementation | ft_mem |
| ft_str | char * manipulation | ft_mem, ft_utils |
| ft_utils | Simple utilities | |
| get_next_line | System getline() implementation | ft_list, ft_mem, ft_str |