Philippe A. Bouchard wrote:

[snip]
I guess it would also be possible to allocate a "shifted object" into some
specific memory page, so operator delete will be able to quickly detect
weither the object is shifted or not.  This way it would be possible to
overload the main operator new.

I think this is what BW does to distinguish between pointers produced by
GC_malloc_uncollectable and gc_malloc.  Also, I think cmm does something
similar (see ftp://ftp.di.unipi.it/pub/Papers/attardi/SPE.ps.gz ).


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