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* [Bug c++/114697] New: [DR 233] references in user defined conversions
@ 2024-04-11 18:33 mpolacek at gcc dot gnu.org
  2024-04-11 23:31 ` [Bug c++/114697] " pinskia at gcc dot gnu.org
  0 siblings, 1 reply; 2+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2024-04-11 18:33 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114697

            Bug ID: 114697
           Summary: [DR 233] references in user defined conversions
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: mpolacek at gcc dot gnu.org
  Target Milestone: ---

This should compile:

```
  struct Z {};

  struct A {
    operator Z&();          // #1
    operator const Z&();
  };

  struct B {
    operator Z();           // #2
    operator const Z&&();
  };

  const Z& r1 = A();          // OK, uses #1
  const Z&& r2 = B();         // OK, uses #2
```

but we reject it with:

cwg233.C:13:15: error: conversion from ‘A’ to ‘const Z&’ is ambiguous
   13 | const Z& r1 = A();          // OK, uses #1
      |               ^~~
cwg233.C:4:3: note: candidate: ‘A::operator Z&()’
    4 |   operator Z&();          // #1
      |   ^~~~~~~~
cwg233.C:5:3: note: candidate: ‘A::operator const Z&()’
    5 |   operator const Z&();
      |   ^~~~~~~~

^ permalink raw reply	[flat|nested] 2+ messages in thread
* [Bug c++/114697] [DR 233] references in user defined conversions
  2024-04-11 18:33 [Bug c++/114697] New: [DR 233] references in user defined conversions mpolacek at gcc dot gnu.org
@ 2024-04-11 23:31 ` pinskia at gcc dot gnu.org
  0 siblings, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu.org @ 2024-04-11 23:31 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114697

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2024-04-11
     Ever confirmed|0                           |1

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.

^ permalink raw reply	[flat|nested] 2+ messages in thread
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2024-04-11 18:33 [Bug c++/114697] New: [DR 233] references in user defined conversions mpolacek at gcc dot gnu.org
2024-04-11 23:31 ` [Bug c++/114697] " pinskia at gcc dot gnu.org

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