[Bug c++/21340] New: error in constructor lookup (can't find constructor with "const void**" argument)

[Bug c++/21340] New: error in constructor lookup (can't find constructor with "const void**" argument)

[benoit at zeroc dot com]

Ice for C++ from ZeroC (http://www.zeroc.com, source code available) doesn't compile anymore with 
GCC 4.0.0 (I also tried with GCC from CVS and the result is the same). It compiled fine with GCC 3.4.2. 

I'm getting an error which looks like the following with 4.0.0:

Main.cpp: In constructor 'IteratorI::IteratorI()':
Main.cpp:31: error: no matching function for call to 'Iterator::Iterator(const void**)'
Main.cpp:6: note: candidates are: Iterator::Iterator()
Main.cpp:6: note:                 Iterator::Iterator(const Iterator&)

I don't understand why it's looking up this constructor, the code doesn't contain any reference to it. I'm 
also getting a segmentation fault of the compiler with similar code (see the code sample below). Here's 
a small test case demonstrating the problem(s):

-----
class Base
{
};

class Iterator : virtual public Base
{
};
bool operator==(const Iterator&, const Iterator&);

class IteratorI : public Iterator
{
};

class Obj
{
    bool operator==(const Obj&) const { return true; }
};

template <typename T>
bool dummy(const Obj& lhs, const Obj& rhs)
{
    const Obj* lhsKey = &lhs;
    const Obj* rhsKey = &rhs;
    return *lhsKey == *rhsKey;
}

int 
main(int argc, char** argv)
{
    // G++ segfault with the following line uncommented
    //Iterator* it1 = new Iterator();

    // error: no matching function for call to 'Iterator::Iterator(const void**)'
    IteratorI* it2 = new IteratorI(); 
}
-----

The output of 'g++ -v -save-temps Main.cpp':

-----
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ../configure --enable-threads --prefix=/opt/gcc-4.0.0
Thread model: posix
gcc version 4.0.0
 /opt/gcc-4.0.0/libexec/gcc/i686-pc-linux-gnu/4.0.0/cc1plus -E -quiet -v -D_GNU_SOURCE 
Main.cpp -mtune=pentiumpro -fpch-preprocess -o Main.ii
ignoring nonexistent directory "/opt/gcc-4.0.0/lib/gcc/i686-pc-linux-gnu/4.0.0/../../../../i686-pc-
linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
 /opt/gcc-4.0.0/lib/gcc/i686-pc-linux-gnu/4.0.0/../../../../include/c++/4.0.0
 /opt/gcc-4.0.0/lib/gcc/i686-pc-linux-gnu/4.0.0/../../../../include/c++/4.0.0/i686-pc-linux-gnu
 /opt/gcc-4.0.0/lib/gcc/i686-pc-linux-gnu/4.0.0/../../../../include/c++/4.0.0/backward
 /usr/local/include
 /opt/gcc-4.0.0/include
 /opt/gcc-4.0.0/lib/gcc/i686-pc-linux-gnu/4.0.0/include
 /usr/include
End of search list.
 /opt/gcc-4.0.0/libexec/gcc/i686-pc-linux-gnu/4.0.0/cc1plus -fpreprocessed Main.ii -quiet 
-dumpbase Main.cpp -mtune=pentiumpro -auxbase Main -version -o Main.s
GNU C++ version 4.0.0 (i686-pc-linux-gnu)
        compiled by GNU C version 4.0.0.
GGC heuristics: --param ggc-min-expand=64 --param ggc-min-heapsize=64389
Main.cpp: In constructor 'IteratorI::IteratorI()':
Main.cpp:31: error: no matching function for call to 'Iterator::Iterator(const void**)'
-----

-- 
           Summary: error in constructor lookup (can't find constructor with
                    "const void**" argument)
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: benoit at zeroc dot com
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21340

[Bug c++/21340] [4.0/4.1 Regression] error in constructor lookup (can't find constructor with "const void**" argument)

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-05-02 17:15 -------
Confirmed, reduced testcase:
struct Base{};
struct Iterator : virtual Base {};
bool operator==(const Iterator&, const Iterator&);
struct IteratorI : Iterator {};
struct Obj
{
    bool operator==(const Obj&) const;
};
template <int>bool dummy()
{
  Obj lhs, rhs;
    return lhs == rhs;
}
int
main(int argc, char** argv)
{
    //Iterator* it1 = new Iterator();
    IteratorI* it2 = new IteratorI();
}

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
           Keywords|                            |ice-on-valid-code, rejects-
                   |                            |valid
   Last reconfirmed|0000-00-00 00:00:00         |2005-05-02 17:15:32
               date|                            |
            Summary|error in constructor lookup |[4.0/4.1 Regression] error
                   |(can't find constructor with|in constructor lookup (can't
                   |"const void**" argument)    |find constructor with "const
                   |                            |void**" argument)
   Target Milestone|---                         |4.0.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21340

[Bug c++/21340] [4.0/4.1 Regression] error in constructor lookup (can't find constructor with "const void**" argument)

[mmitchel at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |mark at codesourcery dot com
                   |dot org                     |
             Status|NEW                         |ASSIGNED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21340

[Bug c++/21340] [4.0/4.1 Regression] error in constructor lookup (can't find constructor with "const void**" argument)

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-05-29 00:16 -------
Subject: Bug 21340

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	mmitchel@gcc.gnu.org	2005-05-29 00:16:05

Modified files:
	gcc/cp         : ChangeLog method.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/g++.dg/init: ctor6.C 

Log message:
	PR c++/21340
	* method.c (implicitly_declare_fn): Clear processing_template_decl
	when generating implicit declaration.
	
	PR c++/21340
	* g++.dg/init/ctor6.C: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.4763&r2=1.4764
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/method.c.diff?cvsroot=gcc&r1=1.329&r2=1.330
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.5551&r2=1.5552
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/init/ctor6.C.diff?cvsroot=gcc&r1=NONE&r2=1.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21340

[Bug c++/21340] [4.0/4.1 Regression] error in constructor lookup (can't find constructor with "const void**" argument)

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-05-29 00:17 -------
Subject: Bug 21340

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-4_0-branch
Changes by:	mmitchel@gcc.gnu.org	2005-05-29 00:17:34

Modified files:
	gcc/cp         : ChangeLog method.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/g++.dg/init: ctor6.C 

Log message:
	PR c++/21340
	* method.c (implicitly_declare_fn): Clear processing_template_decl
	when generating implicit declaration.
	
	PR c++/21340
	* g++.dg/init/ctor6.C: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.4648.2.48&r2=1.4648.2.49
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/method.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.322.4.1&r2=1.322.4.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.5084.2.204&r2=1.5084.2.205
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/init/ctor6.C.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=NONE&r2=1.1.2.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21340

[Bug c++/21340] [4.0/4.1 Regression] error in constructor lookup (can't find constructor with "const void**" argument)

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2005-05-29 00:20 -------
Fixed in 4.0.1.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21340