// Copyright (c) 2009, 2018, Oracle and/or its affiliates. All rights reserved. 
// 
// This program is free software; you can redistribute it and/or modify 
// it under the terms of the GNU General Public License, version 2.0, as 
// published by the Free Software Foundation. 
// 
// This program is also distributed with certain software (including 
// but not limited to OpenSSL) that is licensed under separate terms, 
// as designated in a particular file or component or in included license 
// documentation. The authors of MySQL hereby grant you an 
// additional permission to link the program and your derivative works 
// with the separately licensed software that they have included with 
// MySQL. 
// 
// Without limiting anything contained in the foregoing, this file, 
// which is part of MySQL Connector/ODBC, is also subject to the 
// Universal FOSS Exception, version 1.0, a copy of which can be found at 
// http://oss.oracle.com/licenses/universal-foss-exception. 
// 
// This program 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 General Public License, version 2.0, for more details. 
// 
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/* Check stack direction (0-down, 1-up) */
int f(int *a) 
{
  int b;
  return(&b > a)?1:0; 
}
/*
 Prevent compiler optimizations by calling function 
 through pointer.
*/
volatile int (*ptr_f)(int *) = f;
int main() 
{
  int a;
  return ptr_f(&a);
}
