--- src/money.3.c	2020-06-21 15:52:50.000000000 +0000
+++ src/money.4.c	2020-06-21 15:52:50.000000000 +0000
@@ -1,42 +1,47 @@
 /*
  * Check: a unit test framework for C
  * Copyright (C) 2001, 2002 Arien Malec
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the
  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
  * MA 02110-1301, USA.
  */
 
 #include <stdlib.h>
 #include "money.h"
 
+struct Money
+{
+    int amount;
+};
+
 Money *money_create(int amount, char *currency)
 {
     return NULL;
 }
 
 int money_amount(Money * m)
 {
-    return 0;
+    return m->amount;
 }
 
 char *money_currency(Money * m)
 {
     return NULL;
 }
 
 void money_free(Money * m)
 {
     return;
 }