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From: Jens Maurer (Jens.Maurer_at_[hidden])
Date: 2001-03-16 08:03:56

Beyond the points mentioned, I believe a version macro could be
useful on a user-level:

#if BOOST_VERSION < 0102101
#error This program needs boost 1.21.1 or later

The version macro should only rarely be used to provide
backward compatibility in user programs, since boost libraries
should try to be source-level backward compatible.
(We do have some liberty to make more radical cuts, should the
need arise, unlike the C++ standards committee (see vector<bool>).

[Please adjust the arithmetics in my last post to a working

Jens Maurer

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