[Boost-users] RTTI for VC 6

From: Samuel (samuel_at_[hidden])
Date: 2004-08-08 20:30:55

VC 6 has an option for Run-Time Type Information (RTTI) that is normally
off. I was able to compile and execute a sample program that had a problem.
I noticed that Boost uses RTTI (such as the dynamic_cast operator), so I
checked to see if the option was on; it was not. I turned the option on and
the program worked.

That problem is probably a known problem, but something such as the
following can be added somewhere to not allow a VC 6 program to even compile
if the RTTI option is off. I think it could make things a little easier for
some beginners.

#  if !defined(_CPPRTTI)
#      error "Boost requires use of RTTI"
#  endif