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From: "eric dot liu at uniquesoft dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/44918]  New: Calculation on y = x++ + x++ depends on following statements
Date: Mon, 12 Jul 2010 09:13:00 -0000	[thread overview]
Message-ID: <bug-44918-19427@http.gcc.gnu.org/bugzilla/> (raw)

#include <stdio.h>

void UnspecifiedSideEffectInExpression(int c)
{
        int x = 0, y = 0, z = 20, t = 30, *p, *q;

        x = c;
        y = x++ + x++;
        printf("x = %d, y = %d\n", x, y);

        //Comment out the following code to get a different result
        p = (c&2) ? &x : &t;
        printf("*p = %d\n", *p);

}

int main()
{
        UnspecifiedSideEffectInExpression(1);

        return 0;
}


-- 
           Summary: Calculation on y = x++ + x++ depends on following
                    statements
           Product: gcc
           Version: 4.1.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: eric dot liu at uniquesoft dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44918


             reply	other threads:[~2010-07-12  9:13 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-07-12  9:13 eric dot liu at uniquesoft dot com [this message]
2010-07-12  9:20 ` [Bug c/44918] " rguenth at gcc dot gnu dot org
2010-07-12  9:35 ` eric dot liu at uniquesoft dot com
2010-07-12  9:50 ` eric dot liu at uniquesoft dot com
2010-07-12  9:54 ` steven at gcc dot gnu dot org

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