get_next_line

The get_next_line project is part of the 42 school curriculum, challenging students to implement a function that reads a line from a file descriptor. This project aims to improve file reading skills in C and understand dynamic memory allocation.

Overview

The get_next_line function reads a line from a given file descriptor, such as a file or standard input, and stores it in a buffer. Key features include:

• Reading a line: Reads a line from the file descriptor until a newline character (\n) is encountered or the end of the file is reached.
• Dynamic memory allocation: Allocates memory as needed to store the line, enabling efficient handling of lines of varying lengths.
• Handling multiple file descriptors: Supports reading from multiple file descriptors without losing track of their respective positions.

Usage

1. Clone the project:

git clone https://github.com/seungwonme/get_next_line

2. Navigate to the project directory:

cd get_next_line && rm -rf .git

3. Link the library in your project and include the header file:

#include "get_next_line.h"

int main(void)
{
	int		fd;
	char	*line;

	fd = open("example.txt", O_RDONLY);
	while (get_next_line(fd, &line))
	{
		ft_printf("%s\n", line);
		free(line);
	}
	close(fd);

	return (0);
}

• To clean up object files:

make clean

• To delete all build files:

make fclean

• To clean and rebuild the library:

make re

Function Signature

char	*get_next_line(int fd);