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* [Bug c/17095] New: ++ opertator and + operator is not working together.
@ 2004-08-19 7:00 asokumar at gmail dot com
2004-08-19 8:01 ` [Bug c/17095] " reichelt at gcc dot gnu dot org
0 siblings, 1 reply; 2+ messages in thread
From: asokumar at gmail dot com @ 2004-08-19 7:00 UTC (permalink / raw)
To: gcc-bugs
main()
{
int x=20,y=35;
printf("1:%d%d\n",x,y);
x=y++ + x++; //This operation is not working
printf("2:%d%d\n",x,y);
y= ++y + ++x;
printf("3:%d%d\n",x,y);
}
If you compile the following program it gives following output.
gcc(3.3.2) - Wrong output
------------
1:2035
2:2136
3:2259
Ideal output should be
----------------------
1:2035
2:5636
3:5794
--
Summary: ++ opertator and + operator is not working together.
Product: gcc
Version: 3.3.2
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: asokumar at gmail dot com
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17095
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug c/17095] ++ opertator and + operator is not working together.
2004-08-19 7:00 [Bug c/17095] New: ++ opertator and + operator is not working together asokumar at gmail dot com
@ 2004-08-19 8:01 ` reichelt at gcc dot gnu dot org
0 siblings, 0 replies; 2+ messages in thread
From: reichelt at gcc dot gnu dot org @ 2004-08-19 8:01 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From reichelt at gcc dot gnu dot org 2004-08-19 08:01 -------
This is not a bug in the compiler, but in your code.
Your code triggers undefined behavior because there's no sequence
point in "x=y++ + x++". An even shorter example would be "x=x++".
*** This bug has been marked as a duplicate of 11751 ***
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |DUPLICATE
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17095
^ permalink raw reply [flat|nested] 2+ messages in thread
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2004-08-19 7:00 [Bug c/17095] New: ++ opertator and + operator is not working together asokumar at gmail dot com
2004-08-19 8:01 ` [Bug c/17095] " reichelt at gcc dot gnu dot org
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