Libft - 1337/42 Project

📜 Project Overview

Libft is one of the foundational projects in the 1337 curriculum (part of the 42 Network). This project involves reimplementing essential C standard library functions and adding custom utility functions. It is an excellent introduction to low-level programming and memory management in C.

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🚀 Features

Mandatory Part

• Reimplementations of standard C library functions (<stdlib.h>, <string.h>).
• Custom functions for memory manipulation, string handling, and character checks.

Bonus Part

• Utility functions for working with singly linked lists, enabling advanced data structure manipulation.

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📂 Repository Structure

|-- ft_*.c                 // Individual function implementations  
|-- bonus/                 // Contains linked list functions for the bonus part  
|-- libft.h                // Header file containing all function prototypes  
|-- Makefile               // Compilation rules for building the library  

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🛠️ How to Use

1. Clone the Repository

git clone https://github.com/Mohaben-1/42-libft_1337.git
cd Libft_1337  

2. Compile the Library

Use the provided Makefile to compile the library:

make        # Compiles the mandatory part  
make bonus  # Compiles the bonus part  

After running these commands, the compiled library libft.a will be generated.

3. Include Libft in Your Project

Link the library to your project during compilation:

gcc your_main_file.c -L. -lft -o your_program  

Include the libft.h header in your source code:

#include "libft.h"  

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📖 Function Categories

Mandatory Functions

1. Memory Manipulation

   • ft_memset, ft_memcpy, ft_memmove, ft_bzero, ft_memcmp, ft_memchr.

2. String Manipulation

   • ft_strlen, ft_strncmp, ft_strlcpy, ft_strlcat, ft_strchr, ft_strrchr, ft_strdup, ft_strnstr, ft_strjoin, ft_strtrim, ft_split, ft_substr, ft_striteri, ft_strmapi.

3. Character Checks

   • ft_isalpha, ft_isdigit, ft_isalnum, ft_isascii, ft_isprint.

4. Conversion

   • ft_atoi, ft_itoa.

5. Utility Functions

   • ft_tolower, ft_toupper.

6. File Descriptor Functions

   • ft_putchar_fd, ft_putstr_fd, ft_putendl_fd, ft_putnbr_fd.

Bonus Functions

• Singly Linked List Utilities
  • ft_lstnew, ft_lstadd_front, ft_lstsize, ft_lstlast, ft_lstadd_back, ft_lstdelone, ft_lstclear, ft_lstiter, ft_lstmap.

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🛡️ Makefile Targets

• make – Compiles the mandatory part of the library.
• make bonus – Compiles the bonus part and includes the linked list utilities.
• make clean – Removes object files (.o) and the bonus tracking file (.bonus_file).
• make fclean – Removes object files and the compiled library (libft.a).
• make re – Cleans and recompiles everything.

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📋 Objectives

Mandatory

• Gain proficiency in reimplementing standard C library functions.
• Improve problem-solving and memory management skills.

Bonus

• Expand knowledge by implementing a linked list and its operations.

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🌟 Achievements

• Mastered low-level C programming techniques.
• Built a reusable library to use in future projects.

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🛡️ License

This project is part of the 1337 curriculum. It is shared here for educational purposes and should not be used for plagiarism.