[Bug c++/39866] New: [c++0x] deleted functions not removed from "no match" error messages

[Bug c++/39866] New: [c++0x] deleted functions not removed from "no match" error messages

[sylvain dot pion at sophia dot inria dot fr]

The following program :
=================================
struct A {
        A& operator=(const A&) = delete;

        void operator=(int) {}
        void operator=(char) {}
};

struct B {};

int main()
{
        A a;
        a = B(); // no match
        a = 1.0; // ambiguous
}
==============================

produces, with g++ -std=c++0x, current trunk version, the following
two error messages :

test_note_deleted_function.cpp: In function 'int main()':
test_note_deleted_function.cpp:13: error: no match for 'operator=' in 'a = B()'
test_note_deleted_function.cpp:2: note: candidates are: A& A::operator=(const
A&)
test_note_deleted_function.cpp:4: note:                 void A::operator=(int)
test_note_deleted_function.cpp:5: note:                 void A::operator=(char)
test_note_deleted_function.cpp:14: error: ambiguous overload for 'operator=' in
'a = 1.0e+0'
test_note_deleted_function.cpp:4: note: candidates are: void A::operator=(int)
test_note_deleted_function.cpp:5: note:                 void A::operator=(char)


Note how the deleted assignment operator is listed as candidate in the
"no match" error.  It should probably be removed.

The "ambiguous overload" case does not mention it as candidate, which I think
is the right thing to do.


-- 
           Summary: [c++0x] deleted functions not removed from "no match"
                    error messages
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: sylvain dot pion at sophia dot inria dot fr
  GCC host triplet: i386-apple-darwin9.6.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39866

[Bug c++/39866] [c++0x] deleted functions not removed from "no match" error messages

[sylvain dot pion at sophia dot inria dot fr]

------- Comment #1 from sylvain dot pion at sophia dot inria dot fr  2009-10-05 21:52 -------
Problem still present as of today's trunk.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39866

[Bug c++/39866] [c++0x] deleted functions not removed from "no match" error messages

[paolo dot carlini at oracle dot com]

------- Comment #2 from paolo dot carlini at oracle dot com  2009-10-05 22:22 -------
Likewise... 


-- 

paolo dot carlini at oracle dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jason at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39866

[Bug c++/39866] [c++0x] deleted functions not removed from "no match" error messages

[jason at gcc dot gnu dot org]

-- 

jason at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |jason at gcc dot gnu dot org
                   |dot org                     |
           Severity|normal                      |enhancement
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2009-10-13 06:13:18
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39866

[Bug c++/39866] [c++0x] deleted functions not removed from "no match" error messages

[jason at gcc dot gnu dot org]

------- Comment #3 from jason at gcc dot gnu dot org  2009-10-14 06:28 -------
Subject: Bug 39866

Author: jason
Date: Wed Oct 14 06:27:50 2009
New Revision: 152752

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=152752
Log:
        PR c++/39866
        * call.c (print_z_candidates): Don't print deleted candidates.
        (print_z_candidate): Note deleted candidates.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/defaulted14.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/call.c
    trunk/gcc/testsuite/ChangeLog
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/testsuite/20_util/unique_ptr/assign/assign_neg.cc


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39866

[Bug c++/39866] [c++0x] deleted functions not removed from "no match" error messages

[jason at gcc dot gnu dot org]

------- Comment #4 from jason at gcc dot gnu dot org  2009-10-17 15:41 -------
Fixed for 4.5.0.


-- 

jason at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |4.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39866