[Bug c++/31118] New: Error printing vectors when using nonstandard stdlib

[Bug c++/31118] New: Error printing vectors when using nonstandard stdlib

[msharov at users dot sourceforge.net]

https://sourceware.org/bugzilla/show_bug.cgi?id=31118

            Bug ID: 31118
           Summary: Error printing vectors when using nonstandard stdlib
           Product: gdb
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
          Assignee: unassigned at sourceware dot org
          Reporter: msharov at users dot sourceforge.net
  Target Milestone: ---

I am using a non-standard standard library, where std::vector has a different
implementation from the stdlib std::vector and has no _M_impl member. When
trying to print such a vector, gdb gives error message:

$1 = Python Exception <class 'gdb.error'>: There is no member or method named
_M_impl.

... and prints nothing else. In this situation gdb should treat the class
normally, like any other, and print its contents.

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[Bug c++/31118] Error printing vectors when using nonstandard stdlib

[simon.marchi at polymtl dot ca]

https://sourceware.org/bugzilla/show_bug.cgi?id=31118

Simon Marchi <simon.marchi at polymtl dot ca> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |simon.marchi at polymtl dot ca

--- Comment #1 from Simon Marchi <simon.marchi at polymtl dot ca> ---
If you are getting this message, it means the pretty printer for gcc's stdlib
has been loaded.  How come, since you don't use gcc's stdlib?

How is GDB supposed to know that this is not the right pretty-printer?

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[Bug c++/31118] Error printing vectors when using nonstandard stdlib

[msharov at users dot sourceforge.net]

https://sourceware.org/bugzilla/show_bug.cgi?id=31118

Mike Sharov <msharov at users dot sourceforge.net> changed:

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

--- Comment #2 from Mike Sharov <msharov at users dot sourceforge.net> ---
(In reply to Simon Marchi from comment #1)
> If you are getting this message, it means the pretty printer for gcc's
> stdlib has been loaded.  How come, since you don't use gcc's stdlib?

I have tried to reproduce with a simpler test case and discovered that one of
the libraries my app was linked to was dynamically loading libstdc++. So gdb
behavior here is not unreasonable after all. I guess that means you can close
the bug.

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