[Bug c++/60803] New: Trivial example of overloading in the presence of inheritance fails

[Bug c++/60803] New: Trivial example of overloading in the presence of inheritance fails

[eric.niebler at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60803

            Bug ID: 60803
           Summary: Trivial example of overloading in the presence of
                    inheritance fails
           Product: gcc
           Version: 4.8.2
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: eric.niebler at gmail dot com

The following very simple code fails to compile:

///////////////////////////////////
template<typename Ts>
struct refines
  : Ts
{};

struct A
{};

struct B
  : refines<A>
{};

struct C
  : refines<B>
{};

void fun(void *)
{}

template<typename T>
int fun(refines<T> *)
{
  return 0;
}

int main()
{
  C *p = 0;
  int i = fun(p);
}
////////////////////

[Bug c++/60803] Trivial example of overloading in the presence of inheritance fails

[daniel.kruegler at googlemail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60803

Daniel Krügler <daniel.kruegler at googlemail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |daniel.kruegler@googlemail.
                   |                            |com

--- Comment #1 from Daniel Krügler <daniel.kruegler at googlemail dot com> ---
Also fails for the 4.9.0 trunk, the relevant part of the error message being

<quote>
main.cpp: In function 'int main()': 
main.cpp:29:16: error: void value not ignored as it ought to be 
     int i = fun(p); 
                  ^
</quote>
>From gcc-bugs-return-448672-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Apr 10 06:34:31 2014
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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/60803] Trivial example of overloading in the presence of inheritance fails
Date: Thu, 10 Apr 2014 06:34:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id`803

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Which template argument deduction should be take, B or A?

[Bug c++/60803] Trivial example of overloading in the presence of inheritance fails

[eric.niebler at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60803

--- Comment #3 from Eric Niebler <eric.niebler at gmail dot com> ---
B

[Bug c++/60803] Trivial example of overloading in the presence of inheritance fails

[ville.voutilainen at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60803

Ville Voutilainen <ville.voutilainen at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |rejects-valid
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-12-14
                 CC|                            |ville.voutilainen at gmail dot com
     Ever confirmed|0                           |1
      Known to fail|                            |4.8.2, 4.9.1, 5.0

--- Comment #4 from Ville Voutilainen <ville.voutilainen at gmail dot com> ---
Clang accepts the code.

[Bug c++/60803] Trivial example of overloading in the presence of inheritance fails

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60803

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |11.1.0
      Known to fail|                            |10.1.0, 6.1.0

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Seems to work in GCC 11+

[Bug c++/60803] Trivial example of overloading in the presence of inheritance fails

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60803

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |DUPLICATE
                 CC|                            |marxin at gcc dot gnu.org
             Status|NEW                         |RESOLVED

--- Comment #6 from Martin Liška <marxin at gcc dot gnu.org> ---
Fixed with r11-4693-ged7f9957bbb5e899.

*** This bug has been marked as a duplicate of bug 97453 ***