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/* Test the "ignore-value" module.
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Copyright (C) 2011-2017 Free Software Foundation, Inc.
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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 as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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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 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, see <http://www.gnu.org/licenses/>. */
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/* Written by Eric Blake. */
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#include <config.h>
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#include "ignore-value.h"
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#include <stdio.h>
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#ifndef _GL_ATTRIBUTE_RETURN_CHECK
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# if __GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 4)
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# define _GL_ATTRIBUTE_RETURN_CHECK
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# else
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# define _GL_ATTRIBUTE_RETURN_CHECK __attribute__((__warn_unused_result__))
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# endif
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#endif
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struct s { int i; };
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static char doChar (void) _GL_ATTRIBUTE_RETURN_CHECK;
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static int doInt (void) _GL_ATTRIBUTE_RETURN_CHECK;
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static off_t doOff (void) _GL_ATTRIBUTE_RETURN_CHECK;
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static void *doPtr (void) _GL_ATTRIBUTE_RETURN_CHECK;
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static struct s doStruct (void) _GL_ATTRIBUTE_RETURN_CHECK;
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static char
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doChar (void)
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{
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return 0;
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}
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static int
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doInt (void)
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{
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return 0;
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}
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static off_t
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doOff (void)
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{
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return 0;
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}
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static void *
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doPtr (void)
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{
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return NULL;
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}
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static struct s
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doStruct (void)
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{
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static struct s s1;
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return s1;
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}
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int
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main (void)
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{
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/* If this test can compile with -Werror and the same warnings as
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the rest of the project, then we are properly silencing warnings
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about ignored return values. */
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ignore_value (doChar ());
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ignore_value (doInt ());
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ignore_value (doOff ());
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ignore_value (doPtr ());
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ignore_value (doStruct ());
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return 0;
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}
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