[Bug c/16887] New: Bad assignment in "int i=1; i=i++;"

[Bug c/16887] New: Bad assignment in "int i=1; i=i++;"

[krs at home dot se]

gcc -v:
Reading specs from /opt/GCC341/lib/gcc/sparc-sun-solaris2.6/3.4.1/specs
Configured with: ../gcc-3.4.1/configure --prefix=/opt/GCC341 --with-as=/usr/ccs/bin/as --with-
ld=/usr/ccs/bin/ld --disable-libgcj --enable-languages=c,c++,objc
Thread model: posix
gcc version 3.4.1

uname -srv:
SunOS 5.6 Generic_105181-11

Comments:
The not normally used expression:
 int i=1; 
 i=i++;
will yield i==1, but should yield i==2. 
This does not occur in GCC v.2.8.1 nor in Microsoft VC++. 
Could be a problem in another assignment situations

-- 
           Summary: Bad assignment in "int i=1; i=i++;"
           Product: gcc
           Version: 3.4.1
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: krs at home dot se
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16887

[Bug c/16887] Bad assignment in "int i=1; i=i++;"

[krs at home dot se]

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           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|minor                       |normal


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16887

[Bug c/16887] Bad assignment in "int i=1; i=i++;"

[rearnsha at gcc dot gnu dot org]

------- Additional Comments From rearnsha at gcc dot gnu dot org  2004-08-05 14:21 -------
Not a bug.  Think sequence points...

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16887

[Bug c/16887] Bad assignment in "int i=1; i=i++;"

[krs at home dot se]

------- Additional Comments From krs at home dot se  2004-08-05 14:41 -------
(In reply to comment #1)
> Not a bug.  Think sequence points...
I'm not sure what you mean by that, but
I still think it is a bug, because operator ++ has higher precedence 
over =.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16887

[Bug c/16887] Bad assignment in "int i=1; i=i++;"

[bangerth at dealii dot org]

------- Additional Comments From bangerth at dealii dot org  2004-08-05 14:54 -------
No, it's not a bug. You can't modify a variable twice in one 
expression. That's what you're trying to do, though, with the ++ 
and the assignment. 
 
Take a look at any of PR 11363, PR 11751, PR 12552, PR 13403,  
PR 14417, PR 15012, PR 15103. 
 
W. 

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16887

[Bug c/16887] Bad assignment in "int i=1; i=i++;"

[bangerth at dealii dot org]

------- Additional Comments From bangerth at dealii dot org  2004-08-13 15:45 -------
Reopen to mark as a duplicate of... 

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |UNCONFIRMED
         Resolution|INVALID                     |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16887

[Bug c/16887] Bad assignment in "int i=1; i=i++;"

[bangerth at dealii dot org]

------- Additional Comments From bangerth at dealii dot org  2004-08-13 15:46 -------
...PR 11751. 

*** 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=16887