Added default constructors; [for client] added code to throw an exception if socket creation was unsuccessful

includes/client.hpp

@@ -1,6 +1,7 @@
 #include "easysock.hpp"
 #include <iostream>
-
+#include <errno.h>
+#include "exception_consts.hpp"
 /*
 Client class - Defines a TCP/UDP client.
 - The constructor takes in a **remote** address and port, and connects the client to that address/port.
@@ -17,9 +18,16 @@ private:
 	void create_socket() {
                 struct sockaddr* dest = (struct sockaddr *)malloc(sizeof(struct sockaddr));
                 this->sock_fd = create_remote(this->ip_ver, this->protocol, this->address.data(), this->port, dest);
+		if (sock_fd < 0) {
+			if (sock_fd * -1 == ECONNREFUSED) {
+				throw EXCEPT_CONNREFUSED;
+			}
+		}
 	}
 
 public:
+	Client() {}
+
 	Client(int ip_ver, char protocol, const char* address, int port) {
                 /* Error checking */
                 if (ip_ver != 4 && ip_ver != 6) {
@@ -36,7 +44,11 @@ public:
                 this->protocol =  protocol;
                 this->port = port;
 		this->address = std::string(address);
+                try {
 			create_socket();
+		} catch (int e) {
+			throw;
+		}
         }
 
 	void sendAll(std::string to_send) {

includes/server.hpp

@@ -20,6 +20,8 @@ private:
 	}
 
 public:
+	Server() {}
+
 	Server(int ip_ver, char protocol, int port) {
 		/* Error checking */
 		if (ip_ver != 4 && ip_ver != 6) {