GiNaC/ginac utils.cpp

[Richard Kreckel]

Update of /home/cvs/GiNaC/ginac

Modified Files:
	utils.cpp 
Log Message:
- removed manual basepointer-fiddling in construct-on-first-use objects
  in favor of ex_to<foo>(obj) functions.  This is part of an evil plot
  I have to remove all of these and eventually make ex::bp a private thing.
  (Incidentally these changes compile to slightly better code.  Dunno why.)