[boost] [xpressive] Broken in release if explicit operator bool is available

Subject: [boost] [xpressive] Broken in release if explicit operator bool is available
From: Andrey Semashev (andrey.semashev_at_[hidden])
Date: 2013-01-02 19:54:50

Hi,

With the recent change to Boost.SmartPtr that adds support for
explicit operator bool() Boost.Xpressive no longer compiles. The
relevant error message is:

./boost/xpressive/detail/utility/tracking_ptr.hpp:440:73: error: no
type named ‘unspecified_bool_type’ in ‘class
boost::intrusive_ptr<boost::xpressive::detail::regex_impl<const char*>
>’

Could this be fixed?