This project is about programming a function that returns a line read from a file descriptor.
subject v.10
Project Structure 📂
├── README.md
├── LICENSE
├── project
│ ├── get_next_line_bonus.c
│ ├── get_next_line_bonus.h
│ ├── get_next_line.c
│ ├── get_next_line.h
│ ├── get_next_line_utils_bonus.c
│ └── get_next_line_utils.c
└── _subject
└── en.subject.pdf
Understanding file descriptors is crucial for reading data in C. Each file descriptor represents an open file, socket, or other input/output resource, and it is managed by the operating system. The get_next_line function relies on the read() system call, which reads data from the specified file descriptor into a buffer. Mastery of file descriptor handling allows for efficient line-by-line reading from files and standard input.
Static variables maintain their value between function calls, making them essential for tracking the state of the reading process in the get_next_line function. When dealing with multiple calls to get_next_line(), a static variable can store the buffer's state across these calls, enabling the function to return subsequent lines of input. Proper use of static variables is key to implementing a robust solution without using global variables, adhering to best practices in C programming.
git clone https://github.com/kichkiro/get_next_line.git
cd get_next_line/
It's now possible to use the get_next_line() function by including the header files and source files.
The function prototype is char *get_next_line(int fd);
See LICENSE