[Bug c++/39038] New: Redeclaration

[Bug c++/39038] New: Redeclaration

[mahesh dot balasubramanian at wipro dot com]

Hello,

I found a strange behavior of the following code.

void fn(int x, int y){
 if(int temp = ( x > y ? (x /y) : (x % y))){
  cout << temp;
 }
 else{
  double temp = x / y; // ill-formed, redeclaration of temp
  cout << temp;
 }
}

int main(int argc, char **argv){
 fn(2, 3);
}

According to $6.4/3 (14882_1998), This code is ill-formed. But g++ does not
through any error or warning.

But comeau and vc++ are throwing errors.

$6.4/3
A name introduced by a declaration in a condition (either introduced by the
type-specifier-seq or the declarator of the condition) is in scope from its
point of declaration until the end of the substatements controlled by the
condition. If the name is re-declared in the outermost block of a substatement
controlled by the condition, the declaration that re-declares the name is
ill-formed.

Thanks and Regards,
Mahesh. B


-- 
           Summary: Redeclaration
           Product: gcc
           Version: 4.1.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: mahesh dot balasubramanian at wipro dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39038

[Bug c++/39038] Redeclaration

[rguenth at gcc dot gnu dot org]

------- Comment #1 from rguenth at gcc dot gnu dot org  2009-01-30 07:21 -------
*** Bug 39040 has been marked as a duplicate of this bug. ***


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39038

[Bug c++/39038] Redeclaration

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2009-01-30 07:23 -------
Confirmed.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
           Keywords|                            |accepts-invalid
   Last reconfirmed|0000-00-00 00:00:00         |2009-01-30 07:23:16
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39038

[Bug c++/39038] Redeclaration

[bangerth at gmail dot com]

------- Comment #3 from bangerth at gmail dot com  2009-01-30 15:03 -------
This is probably related to PR 2288.


-- 

bangerth at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bangerth at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39038

[Bug c++/39038] Redeclaration

[bangerth at gmail dot com]

------- Comment #4 from bangerth at gmail dot com  2009-01-30 15:05 -------


*** This bug has been marked as a duplicate of 18770 ***


-- 

bangerth at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |DUPLICATE


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39038