X-Authentication-Warning: acp3bf.physik.rwth-aachen.de: broeker owned process doing -bs Date: Wed, 8 Mar 2000 13:10:06 +0100 (MET) From: Hans-Bernhard Broeker X-Sender: broeker AT acp3bf To: Eli Zaretskii cc: djgpp-workers AT delorie DOT com Subject: Re: iso646.h and some questions In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Reply-To: djgpp-workers AT delorie DOT com Errors-To: dj-admin AT delorie DOT com X-Mailing-List: djgpp-workers AT delorie DOT com X-Unsubscribes-To: listserv AT delorie DOT com Precedence: bulk On Wed, 8 Mar 2000, Eli Zaretskii wrote: > On Wed, 8 Mar 2000, Hans-Bernhard Broeker wrote: > > > > > #undef NULL > > > > #define NULL 0 > > > > > > Won't this make trouble in C++ programs? > > > > Why should it? This is the exact definition found in current DJGPP > > headers, already. > > See stdlib.h. Recent versions of libstdc++ define NULL to something like > __null. There was a thread about this on djgpp-workers several months > ago, and I think on c.o.m.d. as well; you might read it for details. > > I guess we fixed stdlib, but not stddef... When would that have been done? I just downloaded a spare copy of djdev203.zip, dated Jan 07, 2000, to this Linux box, and this is what I got: ~/Ltmp/djgpp> find include -type f | xargs grep 'define.*NULL' include/coff.h:#define T_NULL 0 include/coff.h:#define C_NULL 0 include/crt0.h:#define _CRT0_FLAG_NULLOK 0x0100 include/locale.h:#define NULL 0 include/stddef.h:#define NULL 0 include/stdio.h:#define NULL 0 include/stdlib.h:#define NULL 0 include/string.h:#define NULL 0 include/sys/config.h:#define HAVE_UTIME_NULL 1 include/sys/config.h:#define NULL_DEVICE "nul" include/time.h:#define NULL 0 include/unistd.h:#define NULL 0 As you can see, it's '0', everywhere in the C headers. Hans-Bernhard Broeker (broeker AT physik DOT rwth-aachen DOT de) Even if all the snow were burnt, ashes would remain.