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38 lines
1.4 KiB
38 lines
1.4 KiB
5 months ago
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/*
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Copyright (c) 2009, 2017, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License, version 2.0, for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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/* Check stack direction (0-down, 1-up) */
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int f(int *a) {
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int b;
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return (&b > a) ? 1 : 0;
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}
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/*
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Prevent compiler optimizations by calling function
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through pointer.
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*/
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volatile int (*ptr_f)(int *) = f;
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int main() {
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int a;
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return ptr_f(&a);
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}
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