The get_next_line project consists of a function in C that reads a line from a given file descriptor (such as a file, terminal, or even a network connection) and returns it with each function call. The aim is to implement this function efficiently, using minimal resources, and allowing for easy integration into other programs.
- Reads lines from a file descriptor
- Handles different end-of-line characters (newline)
- Capable of reading files of any size, line by line
- Manages special cases such as empty files or end-of-file situations
To use the get_next_line function in your program, you need to include the corresponding header file and compile your code with the get_next_line function. Here is a minimal example of usage:
#include "get_next_line.h"
int main(int argc, char **argv)
{
int fd;
char *line;
if (argc != 2)
{
printf("Usage: %s file\n", argv[0]);
return 1;
}
// Open the file in read-only mode
fd = open(argv[1], O_RDONLY);
// -1 in case of an error
if (fd == -1)
{
perror("Error opening file");
return 1;
}
// Retrieve the next line with each call
while ((line = get_next_line(fd)) != NULL)
{
printf("%s\n", line);
free(line);
}
// Close the file descriptor
close(fd);
return 0;
}