Darren New <dne### [at] sanrrcom> wrote:
> >   Without this possibility each program would have to be statically linked
> > with all the system libraries, and thus the same system libraries would be
> > loaded into memory multiple times. If there's eg. a huge library used by all
> > programs, it would be loaded to memory as many times as there are programs
> > running.)

> It depends. Some systems had non-dynamic loadable libraries that were 
> indeed shared between programs using them. They just got linked at 
> specific addresses. (I think Multics did this, IIRC.) For example, on 
> the first mainframe I used, the fortran library was at 0x1FF00 or 
> something like that. When you started a program that needed the fortran 
> runtime, it got mapped into your address space.

> I.e., "linked" but not "dynamically under programmer control".

  That still doesn't solve the problem of virtual inheritance being
either always-on or always-off for a class in a precompiled library,
without any possibility of changing it on a per-program basis.

-- 
                                                          - Warp

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