The get_next_line
project is an essential tool for C programmers. It provides a function for reading one line at a time from a file descriptor, offering a deep dive into file I/O in the C programming language.
- Efficiently reads text from files or streams, one line at a time.
- Supports multiple file descriptors simultaneously.
- Handles memory allocation dynamically.
- Ensures modular and maintainable code.
To use get_next_line
, follow these steps:
- Include the
get_next_line
function in your C project. - Call the function with a file descriptor to read lines from it.
#include "get_next_line.h"
int main() {
int fd = open("example.txt", O_RDONLY);
char *line;
while (get_next_line(fd, &line) > 0) {
printf("%s\n", line);
free(line);
}
close(fd);
return 0;
}
To compile with default settings, use the following command:
$ clang -Wall -Werror -Wextra *.c -D BUFFER_SIZE=8
You can modify BUFFER_SIZE as needed.
For extra features, compile with this command:
$ clang -Wall -Werror -Wextra *.c -D BUFFER_SIZE=8 -D INTER_LINE=5
You can customize both BUFFER_SIZE and INTER_LINE.
Depending on your operating system, you may need to adjust the definition of OPEN_MAX. To find the limit of open files your operating system can support, use the following command:
$ ulimit -n