🧰 get_next_line

Reading a line from a file descriptor
Start date: 09/august/2021
_{Project status: completed 105/100 points}

💡 About the project

Write a project with maximum of 10 functions under the 42 norminette restrictions, that reads one line from a file descriptor with varying BUFFER_SIZE. Thereby, only one line should be returned and any remains after the newline should be saved for a repetitive function call.

Requirements

• Repeated calls (e.g., using a loop) to get_next_line() function should read the text file pointed to by the file descriptor, one line at a time.
  
• The function should return the line that was read. If there is nothing else to read or if an error occurred, it should return NULL.
  
• Function should work as expected both when reading a file and when reading from the standard input.
  
• The returned line should include the terminating \n character, except if the end of file was reached and does not end with a \n character.
  
• lseek() is forbidden.
  
• Global variables are forbidden.
  

Key learning points

• Learning about file descriptors and reading from a file
• Using static variables

🛠️ Usage

clone the repository:

git clone https://github.com/KHammerschmidt/42cursus-get_next_line &&
cd 42cursus-get_next_line &&
git clone https://github.com/KHammerschmidt/42cursus-Libft

to modify the buffer size used by read() adapt BUFFERSIZE value n in
Makefile CPPFLAGS := -D BUFFER_SIZE=n

to compile the project:

make