[Bug c++/17395] Incorrect lookup for parameters

["bangerth at dealii dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Additional Comments From gdr at integrable-solutions dot net  2004-09-10 14:35 -------
Subject: Re:  Incorrect lookup for parameters

"bangerth at dealii dot org" <gcc-bugzilla@gcc.gnu.org> writes:

| I would guess gcc is right:

No, GCC is wrong :-)
We had a thread on this issue on the Core reflector, no later than two
days ago.  John Spicer came with the following other example for which
GCC is  confused about.

   void* a = 0;
   void f(int a, int* b = a);

| the names of parameters can't be used 
| in the rest of the argument list, can they?

They can be used, except for specifying default arguments -- nothing
in the standard forbid that. The exemption for default arguments was
made explicit.  The rest follows from 3.3.1/1

   The point of declaration for a name is immediately after its
   complete declarator (clause 8) and before its initializer (if any),
   except as noted below. 

and below, there is no exemption for function parameters.

| Note that this is 
| different to template argument lists, in which this is explicitly 
| allowed (and the standard writers felt the need to state so in a 
| note). 

yes, I know. But I also checked with the stadard writers before
reporting the issue here :-)  That Comeau online is rejecting #4 is a bug
in EDG front-end -- which, as I understand it will be corrected.

-- Gaby

------- Additional Comments From bangerth at dealii dot org  2004-09-10 14:40 -------
> No, GCC is wrong :-) 
> We had a thread on this issue on the Core reflector, no later than two 
> days ago. 
 
Ah, I should have guessed :-) 
 
In that case, I think I should confirm the bug. 
W. 

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2004-09-10 14:40:44
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17395