vector new and delete

[Mark Mitchell]

Folks --

  __cxa_vec_new and __cxa_vec_delete would be a lot more useful if
they accepted pointers to the allocation and deallocation functions as
well.  As it is, they are hard-wired to use the `::operator new[]' and
`::operator delete[]'.  Since the whole purpose of these functions is
to provide compilers a convenient way to manage construction and
destruction, I think we should either add allocation/deallocation
routine pointers to these functions, or add additional entry points.
This additional flexibility would also be useful for C++-compatible
allocations from other languages, etc.

  Jim, would you add this to the open issues list?

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Mark Mitchell                   mark at codesourcery.com
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