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* [Bug c++/108717] New: pasting """_" and "µm" does not give a valid preprocessing token in user-defined literal operator
@ 2023-02-08 12:54 pacoarjonilla at yahoo dot es
  2023-02-08 13:57 ` [Bug c++/108717] Greek letters not accepted as part of identifier in user-defined literal operators redi at gcc dot gnu.org
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: pacoarjonilla at yahoo dot es @ 2023-02-08 12:54 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108717

            Bug ID: 108717
           Summary: pasting """_" and "µm" does not give a valid
                    preprocessing token in user-defined literal operator
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: pacoarjonilla at yahoo dot es
  Target Milestone: ---

The following code is accepted by clang and MSVC, but not GCC:

$ g++-13 --std=c++2b
'''
int operator""_µm(long double magnitude) noexcept // Micro sign, unicode 0x00b5
{
    return magnitude;
}
'''
But character 'µ' is unicode XID_Start, so it should be accepted.

Compiler output:

<source>:1:16: error: expected initializer before '\U000000b5m'
    1 | int operator""_µm(long double magnitude) noexcept \
      |                ^~
Compiler returned: 1

^ permalink raw reply	[flat|nested] 5+ messages in thread

* [Bug c++/108717] Greek letters not accepted as part of identifier in user-defined literal operators
  2023-02-08 12:54 [Bug c++/108717] New: pasting """_" and "µm" does not give a valid preprocessing token in user-defined literal operator pacoarjonilla at yahoo dot es
@ 2023-02-08 13:57 ` redi at gcc dot gnu.org
  2023-02-08 17:32 ` pinskia at gcc dot gnu.org
                   ` (2 subsequent siblings)
  3 siblings, 0 replies; 5+ messages in thread
From: redi at gcc dot gnu.org @ 2023-02-08 13:57 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108717

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2023-02-08
     Ever confirmed|0                           |1
           Keywords|                            |rejects-valid
             Status|UNCONFIRMED                 |NEW

^ permalink raw reply	[flat|nested] 5+ messages in thread

* [Bug c++/108717] Greek letters not accepted as part of identifier in user-defined literal operators
  2023-02-08 12:54 [Bug c++/108717] New: pasting """_" and "µm" does not give a valid preprocessing token in user-defined literal operator pacoarjonilla at yahoo dot es
  2023-02-08 13:57 ` [Bug c++/108717] Greek letters not accepted as part of identifier in user-defined literal operators redi at gcc dot gnu.org
@ 2023-02-08 17:32 ` pinskia at gcc dot gnu.org
  2023-02-08 17:38 ` pinskia at gcc dot gnu.org
  2023-02-08 17:42 ` [Bug c++/108717] Greek letters not accepted as part of identifier in user-defined literal operators without a space pinskia at gcc dot gnu.org
  3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-02-08 17:32 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108717

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
It works with normal identifiers though:
int µm = 1;

^ permalink raw reply	[flat|nested] 5+ messages in thread

* [Bug c++/108717] Greek letters not accepted as part of identifier in user-defined literal operators
  2023-02-08 12:54 [Bug c++/108717] New: pasting """_" and "µm" does not give a valid preprocessing token in user-defined literal operator pacoarjonilla at yahoo dot es
  2023-02-08 13:57 ` [Bug c++/108717] Greek letters not accepted as part of identifier in user-defined literal operators redi at gcc dot gnu.org
  2023-02-08 17:32 ` pinskia at gcc dot gnu.org
@ 2023-02-08 17:38 ` pinskia at gcc dot gnu.org
  2023-02-08 17:42 ` [Bug c++/108717] Greek letters not accepted as part of identifier in user-defined literal operators without a space pinskia at gcc dot gnu.org
  3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-02-08 17:38 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108717

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This is accepted:
```
int operator"" _µm(long double magnitude) noexcept // Micro sign, unicode
0x00b5
{
    return magnitude;
}
```

NOTE the space.

^ permalink raw reply	[flat|nested] 5+ messages in thread

* [Bug c++/108717] Greek letters not accepted as part of identifier in user-defined literal operators without a space
  2023-02-08 12:54 [Bug c++/108717] New: pasting """_" and "µm" does not give a valid preprocessing token in user-defined literal operator pacoarjonilla at yahoo dot es
                   ` (2 preceding siblings ...)
  2023-02-08 17:38 ` pinskia at gcc dot gnu.org
@ 2023-02-08 17:42 ` pinskia at gcc dot gnu.org
  3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-02-08 17:42 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108717

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

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

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Dup of bug 103902.

*** This bug has been marked as a duplicate of bug 103902 ***

^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2023-02-08 17:42 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2023-02-08 12:54 [Bug c++/108717] New: pasting """_" and "µm" does not give a valid preprocessing token in user-defined literal operator pacoarjonilla at yahoo dot es
2023-02-08 13:57 ` [Bug c++/108717] Greek letters not accepted as part of identifier in user-defined literal operators redi at gcc dot gnu.org
2023-02-08 17:32 ` pinskia at gcc dot gnu.org
2023-02-08 17:38 ` pinskia at gcc dot gnu.org
2023-02-08 17:42 ` [Bug c++/108717] Greek letters not accepted as part of identifier in user-defined literal operators without a space pinskia at gcc dot gnu.org

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