#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
int	main(int argc, char **argv)
{
	int		fd;
	char	*line;

	if (argc > 1)
		fd = open(argv[1], O_RDONLY);
	else
		fd = STDIN_FILENO;
	if (fd < 0)
	{
		return (1);
	}
	while ((line = get_next_line(fd)) != NULL)
	{
		printf("%s", line);
	free(line);
	}
	close(fd);
	return (0);
}
/*
#include <stdio.h>
int	main(int argc, char **argv)
{
	int		fd;
	char	*line;

	if (argc > 1)
		fd = open(argv[1], O_RDONLY);
	else
		fd = STDIN_FILENO;
	if (fd < 0)
	{
		return (1);
	}
	line = get_next_line(fd);
	printf("1: first char: %s\n", *line++ == '\n' ? "true" : "false");
	printf("1:second char is \\0: %s\n", *line == '\0' ? "true" : "false");

	line = get_next_line(fd);
	printf("line is null: %s\n", line == NULL ? "true" : "false");
	printf("2: first char is \\0: %s\n", *line == '\0' ? "true" : "false");


	close(fd);
	return (0);
}

*/