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From: schmidt@zola.ics.uci.edu (Doug Schmidt)
Newsgroups: gnu.g++.bug
Subject: Re: (none)
Message-ID: <1989Oct4.043012.9130@paris.ics.uci.edu>
Date: 4 Oct 89 04:30:12 GMT
References: <8910040029.AA01293@flora.CCS.Northeastern.EDU>
Sender: news@paris.ics.uci.edu (Network News)
Reply-To: schmidt@zola.ics.uci.edu (Doug Schmidt)
Distribution: gnu
Organization: University of California, Irvine - Dept of ICS
Lines: 37
In-reply-to: kenb@flora.ccs.northeastern.edu (kenneth baclawski)

In article <8910040029.AA01293@flora.CCS.Northeastern.EDU>, kenb@flora (kenneth baclawski) writes:
>/*
>     Problem with protected members in GNU C++
>
>Compilation:
>g++ -v -c protect.c
>g++ version 1.35.1-
> /kens-disk/k/gnu/lib/gcc-cpp -+ -v -undef -D__GNU__ -D__GNUG__ -D__cplusplus -Dmc68000 -Dsun -Dunix -D__mc68000__ -D__sun__ -D__unix__ -D__HAVE_68881__ -Dmc68020 protect.c /tmp/cca08429.cpp
>GNU CPP version 1.35
> /kens-disk/k/gnu/lib/gcc-cc1plus /tmp/cca08429.cpp -quiet -dumpbase protect.c -noreg -version -o /tmp/cca08429.s
>GNU C++ version 1.35.1- (68k, MIT syntax) compiled by GNU C version 1.35.
>In method struct derived *derived::derived (struct base &):
>protect.c:10: member `a' is a protected member of class `base'
>
>*/
>
>class base {
>protected:
>  int a;
>};
>
>class derived : public base {
>public:
>  derived (base& y) { a = y.a; }
>};

This is not a bug, it is a `feature.'  Check out how C++ 2.0 does it
and you should get the same complaint.  See libg++ code for examples
of how to `work-around' this `feature.'  Or complain about it on
comp.lang.c++ ;-)

Doug
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