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Subject: Re: avl tree - booch components
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From: Simon Wright <simon.j.wright@amsjv.com>
Date: 14 Sep 2001 15:54:46 +0100
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Organization: Alenia Marconi Systems, ISD, Farlington
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Date: 2001-09-14T15:54:46+01:00
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"Warren W. Gay VE3WWG" <ve3wwg@home.com> writes:

> Jeffrey Carter wrote:
> > Unless the constant is never referenced, and your compiler optimizes it
> > away.
> 
> That has never been my experience under GNAT, and never my
> experience under C/C++.

With foo.cc containing

  static const char rcsid[] = "hello world";
  int main()
  {
    return 0;
  }

I get

  orm[410]$ c++ -v
  Reading specs from /usr/lib/gcc-lib/i386-slackware-linux/egcs-2.91.66/specs
  gcc version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)
  orm[411]$ c++ -O2 foo.cc
  orm[412]$ strings a.out | grep hello
  orm[413]$ c++ foo.cc
  orm[414]$ strings a.out | grep hello
  hello world

(but gcc retains the string even with -O2)

-- 
Simon Wright                         Email: simon.j.wright@amsjv.com
Alenia Marconi Systems                     Voice: +44(0)23 9270 1778
Integrated Systems Division                  FAX: +44(0)23 9270 1800