[boost] Function zero assignment/construction syntax (again)

From: Douglas Gregor (gregod_at_[hidden])
Date: 2002-11-09 11:17:54

I finally got it this time. The code is now in CVS to enable the syntax:

boost::function<int (int, int)> f(0);
// ...
if (f != 0) {
  // ...
  f = 0;
}

'f = 0' is an alias for f.clear(). 

The implementation is based on enable_if (thanks Jaakko!). I'm currently 
probing the compiler set that supports enable_if properly. Any known 
workarounds? GCC 3.2 is failing so far...

        Doug