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* [Bug c++/107771] New: Cannot resolve templated conversion operator in templated struct
@ 2022-11-20 18:36 alvinhochun at gmail dot com
  2022-11-20 19:28 ` [Bug c++/107771] " pinskia at gcc dot gnu.org
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: alvinhochun at gmail dot com @ 2022-11-20 18:36 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107771

            Bug ID: 107771
           Summary: Cannot resolve templated conversion operator in
                    templated struct
           Product: gcc
           Version: 12.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: alvinhochun at gmail dot com
  Target Milestone: ---

With this code:

===
template <typename T>
struct bind_in
{
    bind_in(T const& object) noexcept : object(object) {}

    T const& object;

    template <typename R>
    operator R const& () const noexcept {
        return reinterpret_cast<R const&>(object);
    }
};

struct SomeType {
    int v;
};

void func(SomeType in);

void x(const SomeType& v) {
    func(bind_in(v));
}
===

GCC produces an error:

error: could not convert 'bind_in<SomeType>((* & v))' from 'bind_in<SomeType>'
to 'SomeType'


Compiler Explorer: https://godbolt.org/z/rrhY7rr3b

^ permalink raw reply	[flat|nested] 4+ messages in thread
* [Bug c++/107771] Cannot resolve templated conversion operator in templated struct
  2022-11-20 18:36 [Bug c++/107771] New: Cannot resolve templated conversion operator in templated struct alvinhochun at gmail dot com
@ 2022-11-20 19:28 ` pinskia at gcc dot gnu.org
  2022-11-20 19:29 ` pinskia at gcc dot gnu.org
  2022-11-20 19:30 ` [Bug c++/107771] template const reference conversion operator not considered pinskia at gcc dot gnu.org
  2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu.org @ 2022-11-20 19:28 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107771

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Reduced testcase:
```
struct bind_in
{
    template <typename R>
    operator R const& () const;
}a;
int x(void) {
    return a;
}

```

^ permalink raw reply	[flat|nested] 4+ messages in thread
* [Bug c++/107771] Cannot resolve templated conversion operator in templated struct
  2022-11-20 18:36 [Bug c++/107771] New: Cannot resolve templated conversion operator in templated struct alvinhochun at gmail dot com
  2022-11-20 19:28 ` [Bug c++/107771] " pinskia at gcc dot gnu.org
@ 2022-11-20 19:29 ` pinskia at gcc dot gnu.org
  2022-11-20 19:30 ` [Bug c++/107771] template const reference conversion operator not considered pinskia at gcc dot gnu.org
  2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu.org @ 2022-11-20 19:29 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107771

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |rejects-valid
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2022-11-20
     Ever confirmed|0                           |1

^ permalink raw reply	[flat|nested] 4+ messages in thread
* [Bug c++/107771] template const reference conversion operator not considered
  2022-11-20 18:36 [Bug c++/107771] New: Cannot resolve templated conversion operator in templated struct alvinhochun at gmail dot com
  2022-11-20 19:28 ` [Bug c++/107771] " pinskia at gcc dot gnu.org
  2022-11-20 19:29 ` pinskia at gcc dot gnu.org
@ 2022-11-20 19:30 ` pinskia at gcc dot gnu.org
  2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu.org @ 2022-11-20 19:30 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107771

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

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

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Dup of bug 61663.

*** This bug has been marked as a duplicate of bug 61663 ***

^ permalink raw reply	[flat|nested] 4+ messages in thread
end of thread, other threads:[~2022-11-20 19:30 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-11-20 18:36 [Bug c++/107771] New: Cannot resolve templated conversion operator in templated struct alvinhochun at gmail dot com
2022-11-20 19:28 ` [Bug c++/107771] " pinskia at gcc dot gnu.org
2022-11-20 19:29 ` pinskia at gcc dot gnu.org
2022-11-20 19:30 ` [Bug c++/107771] template const reference conversion operator not considered pinskia at gcc dot gnu.org

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