[Bug c++/13907] New: pedantic needed to disambiguate

[Bug c++/13907] New: pedantic needed to disambiguate

[japple at freeshell dot org]

struct A {
  operator int & ();
  operator const int & () const;
};
                                                                               
          
void f(int &);
void f(const int &);
                                                                               
          
int main() {
  const A x = A();
  f(x);
}

gives

const_overload.cpp: In function `int main()':
const_overload.cpp:12: error: call of overloaded `f(const A&)' is ambiguous
const_overload.cpp:7: error: candidates are: void f(int&)
const_overload.cpp:8: error:                 void f(const int&)

unless -pedantic is set.

-- 
           Summary: pedantic needed to disambiguate
           Product: gcc
           Version: 3.3.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: japple at freeshell dot org
                CC: gcc-bugs at gcc dot gnu dot org
  GCC host triplet: x86 linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13907

[Bug c++/13907] pedantic needed to disambiguate

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-01-29 01:08 -------
no sorry, we try to a little more pedantic by default in C++.

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13907

[Bug c++/13907] pedantic needed to disambiguate

[japple at freeshell dot org]

------- Additional Comments From japple at freeshell dot org  2004-01-29 03:33 -------
(In reply to comment #1)
> no sorry, we try to a little more pedantic by default in C++.

What does that mean?  When pedantic is set, it compiles.  When it's not set, it
doesn't.  Pedantic is supposed to be MORE strict!

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13907

[Bug c++/13907] [3.3/3.4/3.5 regression] valid conversion rejected unless -pedantic is set

[bangerth at dealii dot org]

------- Additional Comments From bangerth at dealii dot org  2004-01-29 18:50 -------
This is clearly a bug -- x is const, so only the conversion operator 
to "const int&" can be called. We should accept this with or without 
-pedantic. 
 
Confirmed with 3.3, 3.4 and mainline. It works with 2.95 and 3.2, though, 
so this is a regression. 
 
W. 

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
           Keywords|                            |rejects-valid
      Known to fail|                            |3.3.3 3.4.0
      Known to work|                            |2.95.3 3.2.3
   Last reconfirmed|0000-00-00 00:00:00         |2004-01-29 18:50:36
               date|                            |
            Summary|pedantic needed to          |[3.3/3.4/3.5 regression]
                   |disambiguate                |valid conversion rejected
                   |                            |unless -pedantic is set
   Target Milestone|---                         |3.3.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13907

[Bug c++/13907] [3.3/3.4/3.5 regression] valid conversion rejected unless -pedantic is set

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-01-29 19:02 -------
>From Phil's regression hunter: Search converges between 2003-03-04-trunk (#237) and 2003-03
-07-trunk (#238).
: Search converges between 2003-03-05-3.3 (#74) and 2003-03-08-3.3 (#75).

Related to the fixed bug 9965 and bug 9878.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13907

[Bug c++/13907] [3.3/3.4/3.5 regression] valid conversion rejected unless -pedantic is set

[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=13907

[Bug c++/13907] [3.3/3.4/3.5 regression] valid conversion rejected unless -pedantic is set

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-02-02 16:26 -------
Subject: Bug 13907

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_4-branch
Changes by:	mmitchel@gcc.gnu.org	2004-02-02 16:26:47

Modified files:
	gcc/cp         : ChangeLog call.c class.c cp-tree.h decl.c 
	                 init.c pt.c tree.c typeck.c 
	gcc/testsuite  : ChangeLog 
	gcc/testsuite/g++.old-deja/g++.mike: net36.C 
Added files:
	gcc/testsuite/g++.dg/conversion: op2.C 
	gcc/testsuite/g++.dg/ext: attrib13.C 

Log message:
	PR c++/13113
	* init.c (build_offset_ref): Improve error recovery for invalid
	uses of non-static member functions.
	
	PR c++/13854
	* cp-tree.h (cp_build_type_attribute_variant): New function.
	* class.c (build_clone): Use cp_build_type_attribute_variant.
	* decl.c (duplicate_decls): Likewise.
	* pt.c (copy_default_args_to_explicit_spec): Likewise.
	(tsubst_function_type): Likewise.
	* tree.c (build_exception_variant): Check attributes before
	concluding that two types are the same.
	(cp_build_type-attribute_variant): New method.
	* typeck.c (merge_types): Use cp_build_type_attribute_variant.
	
	PR c++/13907
	* call.c (convert_class_to_reference): Keep better track of
	pedantically invalid user-defined conversions.
	
	PR c++/13113
	* g++.old-deja/g++.mike/net36.C: Adjust error messages.
	
	PR c++/13854
	* g++.dg/ext/attrib13.C: New test.
	
	PR c++/13907
	* g++.dg/conversion/op2.C: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.3892.2.26&r2=1.3892.2.27
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/call.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.452.2.4&r2=1.452.2.5
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/class.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.595.4.3&r2=1.595.4.4
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/cp-tree.h.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.946.4.2&r2=1.946.4.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/decl.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.1174.2.2&r2=1.1174.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/init.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.356.2.3&r2=1.356.2.4
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/pt.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.816.2.6&r2=1.816.2.7
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/tree.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.360&r2=1.360.4.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/typeck.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.519.2.3&r2=1.519.2.4
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.3389.2.39&r2=1.3389.2.40
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/conversion/op2.C.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=NONE&r2=1.1.2.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/ext/attrib13.C.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=NONE&r2=1.1.2.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.old-deja/g++.mike/net36.C.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.7&r2=1.7.14.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13907

[Bug c++/13907] [3.3 regression] valid conversion rejected unless -pedantic is set

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2004-02-02 16:42 -------
Fixed in GCC 3.4 and GCC 3.5.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|mark at codesourcery dot com|unassigned at gcc dot gnu
                   |                            |dot org
             Status|ASSIGNED                    |NEW
      Known to fail|3.3.3 3.4.0                 |3.3.3
            Summary|[3.3/3.4/3.5 regression]    |[3.3 regression] valid
                   |valid conversion rejected   |conversion rejected unless -
                   |unless -pedantic is set     |pedantic is set


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13907

[Bug c++/13907] [3.3 regression] valid conversion rejected unless -pedantic is set

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-02-02 16:53 -------
Subject: Bug 13907

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	mmitchel@gcc.gnu.org	2004-02-02 16:53:17

Modified files:
	gcc/cp         : ChangeLog call.c class.c cp-tree.h decl.c 
	                 init.c pt.c tree.c typeck.c 
	gcc/testsuite  : ChangeLog 
	gcc/testsuite/g++.old-deja/g++.mike: net36.C 
Added files:
	gcc/testsuite/g++.dg/conversion: op2.C 
	gcc/testsuite/g++.dg/ext: attrib13.C 

Log message:
	PR c++/13113
	* init.c (build_offset_ref): Improve error recovery for invalid
	uses of non-static member functions.
	
	PR c++/13854
	* cp-tree.h (cp_build_type_attribute_variant): New function.
	* class.c (build_clone): Use cp_build_type_attribute_variant.
	* decl.c (duplicate_decls): Likewise.
	* pt.c (copy_default_args_to_explicit_spec): Likewise.
	(tsubst_function_type): Likewise.
	* tree.c (build_exception_variant): Check attributes before
	concluding that two types are the same.
	(cp_build_type-attribute_variant): New method.
	* typeck.c (merge_types): Use cp_build_type_attribute_variant.
	
	PR c++/13907
	* call.c (convert_class_to_reference): Keep better track of
	pedantically invalid user-defined conversions.
	
	PR c++/13113
	* g++.old-deja/g++.mike/net36.C: Adjust error messages.
	
	PR c++/13854
	* g++.dg/ext/attrib13.C: New test.
	
	PR c++/13907
	* g++.dg/conversion/op2.C: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.3924&r2=1.3925
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/call.c.diff?cvsroot=gcc&r1=1.456&r2=1.457
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/class.c.diff?cvsroot=gcc&r1=1.599&r2=1.600
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/cp-tree.h.diff?cvsroot=gcc&r1=1.948&r2=1.949
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/decl.c.diff?cvsroot=gcc&r1=1.1178&r2=1.1179
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/init.c.diff?cvsroot=gcc&r1=1.359&r2=1.360
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/pt.c.diff?cvsroot=gcc&r1=1.824&r2=1.825
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/tree.c.diff?cvsroot=gcc&r1=1.361&r2=1.362
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/typeck.c.diff?cvsroot=gcc&r1=1.523&r2=1.524
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.3451&r2=1.3452
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/conversion/op2.C.diff?cvsroot=gcc&r1=1.1&r2=1.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/ext/attrib13.C.diff?cvsroot=gcc&r1=1.1&r2=1.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.old-deja/g++.mike/net36.C.diff?cvsroot=gcc&r1=1.7&r2=1.8



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13907

[Bug c++/13907] [3.3 regression] valid conversion rejected unless -pedantic is set

[gdr at gcc dot gnu dot org]

------- Additional Comments From gdr at gcc dot gnu dot org  2004-02-15 12:42 -------
Adjust milestone

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.3.3                       |3.3.4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13907

[Bug c++/13907] [3.3 regression] valid conversion rejected unless -pedantic is set

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-02-22 16:05 -------
Subject: Bug 13907

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_3-branch
Changes by:	gdr@gcc.gnu.org	2004-02-22 16:05:49

Modified files:
	gcc/cp         : ChangeLog call.c 
Added files:
	gcc/testsuite/g++.dg/conversion: op2.C 

Log message:
	Backport from mainline
	2004-02-02  Mark Mitchell  <mark@codesourcery.com>
	PR c++/13907
	* call.c (convert_class_to_reference): Keep better track of
	pedantically invalid user-defined conversions.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.3076.2.248&r2=1.3076.2.249
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/call.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.341.2.37&r2=1.341.2.38
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/conversion/op2.C.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=NONE&r2=1.2.6.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13907

[Bug c++/13907] [3.3 regression] valid conversion rejected unless -pedantic is set

[gdr at gcc dot gnu dot org]

------- Additional Comments From gdr at gcc dot gnu dot org  2004-02-22 16:07 -------
Backport fix.

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13907