[boost] shifted_ptr<> w/ lock mechanism

From: Philippe A. Bouchard (philippeb_at_[hidden])
Date: 2003-01-28 14:38:15

Lock mechanism was added to shifted_ptr<>:
http://groups.yahoo.com/group/boost/files/shifted_ptr.zip

Benchmarks are also updated.  Still shifted_ptr<> is using less memory and
twice faster for reconstruction time.

Notes:
- The first memory map report is not precise (shifted_ptr<U>).
- The reports were reordered (shifted_ptr<U>, shifted_ptr<T> &
shared_ptr<T>).

I believe there is not that much left to do besides optimizations.

Philippe A. Bouchard