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42 LIBFT

SUMMARY

LIBFT's main goal is to create a C library coding all C most essential functions, but from scratch. The key aspect of this project is the design of C most common and useful function without the aid of external libraries that would be normally used. Recreating these functions is a valuable exercise for understanding their inner workings, limitations, and potential unexpected results. Unit testing is also an essential part of the project. I delved into this project because I knew that by studying the inner functioning of C I would have understood a lot more than simply including a header. A lot more work of course than "#include <stdio.h>", but I can say it paid off.

The C library functions are nothing to be messed with. They are system library functions for a reason and considering that they are around since the inception of C in 1978 they are virtually bulletproof so writing them manually is an adventure that I embarked to appreciate them in their full beauty and technical mastery. Due to its nature as a low-level language, C enables operations that function at an extremely granular level, delving deep into the intricacies of computer hardware. Languages like Python or JavaScript instead work at a so much higher level that everything happens under the hood without you knowing, which is handy, but not as fun.

For this project, only three standard library functions are permitted: write() from <unistd.h>, malloc(), and free() from <stdlib.h>. Additionally, I used <string.h> for size_t and NULL.

The functions in LIBFT are categorized into three types:

  • Lib C Functions: These functions originate from standard C libraries, but they are prefixed with "ft_" to avoid conflicts with the original ones.

  • 42 Functions: These functions are specific to Ecole 42 and primarily deal with memory and string manipulation.

  • List Functions: These functions are used for creating and manipulating lists.

🚀 About Me

Full stack developer

Hi there 👋, my name is Sam

I am Sam from Berlin, I code for a living and I live to code. I really enjoy low level languages like C and I mostly code in CPP. You can checkout my LinkedIn profile at my LinkedIn

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Me: @noci0001

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