Reads from filedescriptor and returns one line at a time, excluding \n chars. This get_next_line implementation handles alternating file descriptors using a static array of char pointers to save references to multiple dynamically allocated buffers.
Always free the returned line.
During compilation, the macro BUFFER_SIZE can be redefined using -D BUFFER_SIZE=<size>.
- Compile source code with test.c.
- Run
./a.out <file to read from>
The main in test.c will open the file and feed get_next_line the corresponding file descriptor. In case no arguments are given, get_next_line will read from file descriptor 0 (standard input).