🚀 1337 Project: get_next_line

Development repository for the 42cursus' get_next_line project
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📖 About · 🔗 Useful Links

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🏆 Project Score: 112/100 🎉

I successfully completed the get_next_line project, including the bonus part handling multiple file descriptors, with an exceptional score! (The code I provided is fixed so the final grade for it would be 125/100).

📜 What is get_next_line?

The get_next_line function reads a file line by line, handling various file descriptors efficiently.

char *line;
while ((line = get_next_line(fd)))
{
    printf("%s", line);
    free(line);
}

🌟 Key Features:

• Reads one line at a time (including \n)
• Efficient buffer management
• Handles multiple file descriptors (Bonus Part ✅)
• Works on any file, including stdin

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🏗️ How It Works

1. Uses a static buffer to store leftover data between function calls.
2. Reads the file chunk by chunk (defined by BUFFER_SIZE).
3. Extracts and returns a single line on each call.
4. Frees memory properly to prevent leaks.

🛠️ Core Functions:

Function	Description
get_next_line(int fd)	Reads and returns the next line from fd
ft_strjoin(s1, s2)	Concatenates two strings
ft_strchr(s, c)	Finds character c in string s
ft_strdup(s)	Duplicates a string
ft_substr(s, start, len)	Extracts a substring

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🚀 Bonus Part: Handling Multiple File Descriptors

The bonus part extends get_next_line to handle multiple file descriptors simultaneously, ensuring:

• Independent reading from different files
• No data loss between function calls
• Smooth performance in multi-file environments

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🏗️ How to Use

This project includes a Makefile for easy compilation.

🔹 Compilation

Run the following command to compile:

make

This will generate get_next_line.a (static library).

🔹 Usage in Your Code

To use get_next_line, include the header and link the library:

#include "get_next_line.h"

Compile your program with:

gcc main.c get_next_line.a -o my_program

🔹 Cleaning

To remove object files and binaries:

make clean   # Removes object files
make fclean  # Removes object files and library
make re      # Cleans and recompiles everything

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📌 Useful Links

📚 Documentation & References

• 42 PDF: get_next_line Subject
• File Descriptors Explained
• C Library: read()
• Memory Management in C

🛠 Technical Articles & Discussions

• How get_next_line Works
• Handling Multiple FDs
• Efficient Buffering Techniques

Happy coding! 🚀