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- Path: news.cern.ch!danpop
- From: danpop@mail.cern.ch (Dan Pop)
- Newsgroups: cs.forum,cuhk.se.3420,comp.lang.c
- Subject: Re: Help: a very segmentation fault!
- Date: 16 Apr 96 18:03:28 GMT
- Organization: CERN European Lab for Particle Physics
- Message-ID: <danpop.829677808@news.cern.ch>
- References: <4ki7gu$bgc@eng_ser1.erg.cuhk.hk> <4kinqm$hnt@eng_ser1.erg.cuhk.hk> <4kiptc$ih5@eng_ser1.erg.cuhk.hk> <4kisn3$jbi@eng_ser1.erg.cuhk.hk>
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- In <4kisn3$jbi@eng_ser1.erg.cuhk.hk> mfchan@cs.cuhk.hk (I'm a good man) writes:
-
- >NULL = '\0' = 0. Defined in stdio.h or stdlib.h
-
- You might be a good man, but this doesn't prevent you from being an
- ignorant man, as well :-)
-
- It is true that '\0' and 0 are the same. They both have the same type and
- value. It is also true that 0 can be always used instead of NULL, but
- the reciprocal is not necessarily true. Proof:
-
- cnwgs1:~ 1> grep NULL /usr/include/stdio.h
- #ifndef NULL
- #define NULL ((void *)0)
-
- BTW, NULL is defined in <locale.h>, <stddef.h>, <stdio.h>, <stdlib.h>,
- <string.h> and <time.h>.
-
- Dan
- --
- Dan Pop
- CERN, CN Division
- Email: danpop@mail.cern.ch
- Mail: CERN - PPE, Bat. 31 R-004, CH-1211 Geneve 23, Switzerland
-