GET_NEXT_LINE

École 42's project in C. Read line by line from the standard input, with a few contraints.

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👩‍💻 Usage

Function prototype:

• int get_next_line(int fd, char **line) with fd for a file descriptor to be read from and line a pointer to the memory location where to store the output line.

Return value are :

• 1 : A line has been read
• 0 : EOF has been reached
• -1 : An error happened

🏁 Getting Started

• gcc -Wall -Wextra -Werror -D BUFFER_SIZE=32 get_next_line_bonus.c get_next_line_utils_bonus.c main.c -o gnl && ./gnl

Compiling GNL with a minimalist main with the above command will start reading from the standard input of the current terminal, each enter will return from the get_next_line function with the return value displayed between [] To end this, EOF can be enter with ctrl + D

Alternatively, stdin can be filled using pipes: echo hello '\n' bye | ./gnl

📌 Projet's details

• Calling get_next_line function in a loop will allow to read the text available on a file descriptor one line at a time until the EOF.
• It reads from the standard input or from a file.
• libft is not allowed for this project. File get_next_line_utils.c contains the functions that are needed for your get_next_line to work.
• Your program compiles with the flag -D BUFFER_SIZE=xx. which will be used as the buffer size for the read calls get_next_line.

🍬 Bonus part

• Extra difficulty: use of a single static variable.
• Manages multipe file descriptor at the time. For example, if the file descriptors 3, 4 and 5 are accessible for reading, calling get_next_line once on 3, once on 4, once again on 3 then once on 5 etc. without losing the reading thread on each of the descriptors.