ex00 finished

ex00/main.cpp

@@ -6,19 +6,22 @@
 /*   By: aortigos <aortigos@student.42malaga.com    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2026/04/23 19:58:34 by aortigos          #+#    #+#             */
-/*   Updated: 2026/04/24 00:32:28 by aortigos         ###   ########.fr       */
+/*   Updated: 2026/04/24 12:15:14 by aortigos         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
 #include "BitcoinExchange/BitcoinExchange.hpp"
+using std::cout;
+using std::endl;
+
 
 int	main(int argc, char **argv)
 {
 
 	if (argc != 2)
 	{
-		cout << "Usage: ./btc <database>" << endl;
-		return (0);
+		cout << "Error: could not open file." << endl;
+		return (1);
 	}
 	
 	std::ifstream database("data.csv");