Date: Thu, 20 Jul 2000 18:30:42 -0400 Message-Id: <200007202230.SAA00855@envy.delorie.com> From: DJ Delorie To: martin AT loewis DOT home DOT cs DOT tu-berlin DOT de CC: djgpp-workers AT delorie DOT com, gcc AT gcc DOT gnu DOT org In-reply-to: <200007202042.WAA00946@loewis.home.cs.tu-berlin.de> (martin AT loewis DOT home DOT cs DOT tu-berlin DOT de) Subject: Re: GCC headers and DJGPP port References: <200007180918 DOT FAA06988 AT indy DOT delorie DOT com> <200007181913 DOT VAA01170 AT loewis DOT home DOT cs DOT tu-berlin DOT de> <200007191826 DOT OAA08693 AT indy DOT delorie DOT com> <200007200729 DOT JAA01060 AT loewis DOT home DOT cs DOT tu-berlin DOT de> <200007201024 DOT GAA09536 AT indy DOT delorie DOT com> <200007201205 DOT OAA15361 AT loewis DOT home DOT cs DOT tu-berlin DOT de> <200007201437 DOT KAA29757 AT envy DOT delorie DOT com> <200007202042 DOT WAA00946 AT loewis DOT home DOT cs DOT tu-berlin DOT de> Reply-To: djgpp-workers AT delorie DOT com Errors-To: nobody AT delorie DOT com X-Mailing-List: djgpp-workers AT delorie DOT com X-Unsubscribes-To: listserv AT delorie DOT com Precedence: bulk > > It doesn't. It shouldn't have to. ANSI says that stdio.h provides > > NULL. > > so it is not all that clear that it is provided by stdio.h > exclusively. I didn't say exclusively. I said stdio.h provides it. Headers that expect stdio.h to *relinquish* its provision of NULL are broken. The other djgpp headers that also provide NULL cooperate so that none of them have to relinquish their provisions to the others. > Please tell me how you implement the above requirement without testing > whether NULL has been defined? They all define it to exactly the same thing: 0