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...by explicitly defaulting the copy/move functions (and, where needed in turn,
also a default ctor) for classes that have a user-declared dtor that does
nothing other than an implicitly-defined one would do, but needs to be user-
declared because it is virtual and potentially serves as a key function to
emit the vtable, or is non-public, etc.; and by removing explicitly user-
provided functions that do the same as their implicitly-defined counterparts,
but may prevent implicitly declared copy functions from being defined as non-
deleted in the future. (Even if such a user-provided function was declared
non-inline in an include file, the apparently-used implicitly-defined copy
functions are already include, so why bother with non-inline functions.)
Change-Id: I4efe3eb088e5f9096be87dd8240504768755112b
Reviewed-on: https://gerrit.libreoffice.org/58096
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
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