Re: Complexity of protected objects

[dewar@gnat.com (Robert Dewar)]

Jeffrey Carter <jrcarter@acm.org> wrote in message news:<3C81C852.395A160A@acm.org>...
> but as the start of the discussion
> referred to calling Ada.Text_IO operations from protected 
> operations, I
> didn't think the additional qualification was necessary.

But it did not do so! The first message in this thread
simply talked about reading and writing files, without
any hint of how it should be done.

The bottom line here is that if you want to do input output
from a protected object, you need to check with the details
of the implementation to see what will happen. It might be
just fine to use Text_IO (it would be in GNAT), or it might
be fine to use an interfaced C library routine, or perhaps
there is something specifically intended for this purpose.
Most certainly you are in implementation dependent territory here, but
that's not necessarily terrible at all.