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* Re: c/3324: wrong operator priority
@ 2001-06-21 5:00 neil
0 siblings, 0 replies; 2+ messages in thread
From: neil @ 2001-06-21 5:00 UTC (permalink / raw)
To: arminu, ebudulea, vpanek, gcc-bugs, gcc-prs, nobody
Synopsis: wrong operator priority
State-Changed-From-To: open->closed
State-Changed-By: neil
State-Changed-When: Thu Jun 21 04:59:59 2001
State-Changed-Why:
This is not a bug - your code has undefined behaviour
as there is no sequence point between the two uses.
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view&pr=3324&database=gcc
^ permalink raw reply [flat|nested] 2+ messages in thread
* c/3324: wrong operator priority
@ 2001-06-21 4:36 arminu
0 siblings, 0 replies; 2+ messages in thread
From: arminu @ 2001-06-21 4:36 UTC (permalink / raw)
To: gcc-gnats; +Cc: ebudulea, vpanek
>Number: 3324
>Category: c
>Synopsis: wrong operator priority
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: wrong-code
>Submitter-Id: net
>Arrival-Date: Thu Jun 21 04:36:01 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator: arminu@yahoo.com
>Release: 2.95-2, 2.95-3, 2.96, 3.0.1 20010620
>Organization:
>Environment:
mingw port (2.95-2, 2.95-3), RedHat Linux 7.1 gcc compiler (2.96-??), CodeSourcery online test compilation(3.0.1 20010620 )
>Description:
the prefix increment operator is not correctly evaluated in the following code:
int a[8];
int i = 4;
a[i] = ++i;
the last line is evaluated as
a[4] = 5;
instead of
a[5] = 5;
>How-To-Repeat:
void test(void)
{
int a[8] = {0,0,0,0,0,0,0,0};
int i = 4;
a[i] = ++i;
printf("\na[4] = %d\na[5] = %d\n", a[4], a[5]);
}
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
^ permalink raw reply [flat|nested] 2+ messages in thread
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2001-06-21 5:00 c/3324: wrong operator priority neil
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2001-06-21 4:36 arminu
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