refresh

du6/program.c

@@ -38,6 +38,7 @@ static TreeNode* read_tree_node() {
 
     node->yes_branch = read_tree_node();
     node->no_branch = read_tree_node();
+
     return node;
 }
 
@@ -99,6 +100,23 @@ static void skip_empty_line() {
     }
 }
 
+static int has_more_data() {
+    char buffer[MAXLINE];
+    long pos = ftell(stdin);
+
+    if (fgets(buffer, sizeof(buffer), stdin) == NULL) {
+        return 0;
+    }
+
+    int newline = (buffer[0] == '\n' || buffer[0] == '\r');
+
+    if (!newline) {
+        return 1;
+    }
+
+    return 0;
+}
+
 static void run_dialog(TreeNode *root) {
     if (root == NULL) {
         return;
@@ -139,7 +157,7 @@ int main() {
 
     printf("Expert z bufetu to vie.\n");
 
-    if (root == NULL || !validate_tree(root)) {
+    if (root == NULL || !validate_tree(root) || has_more_data()) {
         printf("Chybna databaza\n");
         free_tree(root);
         return 0;