Path: utzoo!telly!attcan!dptcdc!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!YAHI.STANFORD.EDU!mdt
From: mdt@YAHI.STANFORD.EDU (Michael Tiemann)
Newsgroups: gnu.g++
Subject: Possible cfront 1.1 bug
Message-ID: <8902200009.AA01957@yahi.Stanford.EDU>
Date: 20 Feb 89 00:09:10 GMT
References: <6317@saturn.ucsc.edu>
Sender: daemon@tut.cis.ohio-state.edu
Reply-To: tiemann@lurch.stanford.edu
Distribution: gnu
Organization: GNUs Not Usenet
Lines: 39


   There appears to be a bug in cfront 1.1 which causes this
   program to print garbage in the third output. We've found three
   ways of sidestepping the bug.

	   1) replace all instances of float with double 
	   2) use a local variable in foo(); pass the address of the local
	   3) use the oregon C++ compiler

I've found a fourth way: use the GNU C++ compiler.

   =-=-=-=-=-=-=-=-=-=
   #include <stream.h>
   void foo(float l);
   void bar (float *lp);
   main()
   {
	   float l=1.5;

	   cout << "main: l == " << l << "\n";
	   foo(l);
   }

   void foo(float l)
   {
	   cout << "foo: l == " << l << "\n";
	   bar(&l);
   }

   void bar (float *lp)
   {
	   cout << "bar: *lp == " << *lp << "\n";
   }
   =-=-=-=-=-=-=-=-=-=
   **************************************************************
   Daniel Edelson
   daniel@saturn.ucsc.edu

Michael