"Peter Dimov" <pdimov@mmltd.net> writes:
Anyway, I guess we'll have to migrate to TR1 style placeholders one day, but this will break existing code.
I'm not sure it has to:
namespace bind { extern arg<1> _1; }
#1: extern implies .obj. Currently bind doesn't need a build/install phase.
namespace { // if you like using bind::_1; }
#2: using declarations of this form have a lot of potential. :-)
I had in mind something like
namespace boost {
namespace placeholders // also sagt TR1 {
inline boost::arg<1> _1() { return boost::arg<1>(); }
} // placeholders
} // boost
That works.
#ifndef BOOST_BIND_NO_GLOBAL_PLACEHOLDERS
using namespace boost::placeholders;
#endif
The above still makes me very nervous, unless (possibly) BOOST_BIND_NO_GLOBAL_PLACEHOLDERS is the default.
But not for 1.32, I think. First thing post-branch, maybe. ;-)
Probably. -- Dave Abrahams Boost Consulting http://www.boost-consulting.com