c++/3168: [Small Correction of PR 3167]

[philipp.bachmann@obtree.com]

>Number:         3168
>Category:       c++
>Synopsis:       [Small Correction of PR 3167]
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Jun 13 07:46:02 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     Philipp Bachmann
>Release:        unknown-1.0
>Organization:
>Environment:

>Description:
My remark, that g++'s warnings can be seen only if "base_t" has
explicitly a copyconstructor defined, is wrong.

Instead, the warnings are independent from whether there's a
copyconstructor or not.

Sorry for that.

The rest of PR 3167 applies unchanged, however.
>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: