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Newsgroups: | comp.os.msdos.djgpp |
From: | manni DOT heumann AT gmx DOT de (Manni Heumann) |
Subject: | Re: deleting NULL ? |
References: | <8q1u4s$jh3$1 AT info DOT cyf-kr DOT edu DOT pl> <01c02165$667c2780$c3247d81 AT default> |
X-Newsreader: | News Xpress 2.01 |
Mime-Version: | 1.0 |
Date: | Sun, 17 Sep 2000 11:53:06 GMT |
NNTP-Posting-Host: | ppp36-17.hrz.uni-bielefeld.de |
Message-ID: | <39c4b0a5_1@news.uni-bielefeld.de> |
X-Trace: | 17 Sep 2000 13:53:09 +0200, ppp36-17.hrz.uni-bielefeld.de |
Lines: | 32 |
To: | djgpp AT delorie DOT com |
DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
Reply-To: | djgpp AT delorie DOT com |
In article <01c02165$667c2780$c3247d81 AT default>, "doug" <deleveld AT dds DOT nl> wrote: >Rafał Maj <r_maj AT poczta DOT onet DOT pl> schreef in artikel ><8q1u4s$jh3$1 AT info DOT cyf-kr DOT edu DOT pl>... >> Hi, >> what is supposed to happen when I'll try delete NULL: >> int* x = NULL; >> delete x; >> Should I every time write if (x) delete x; ? > >IIRC, the C++ standard says it is legal to delete(0) and it must do >nothing. >To be sure check the C++ faq. I think it is the same in C, but I am not >sure. >I don't know if DJGPP is compliant for this.... > >Doug > That's right: Invoking delete on a NULL-Pointer simply is supposed to do nothing. See: http://www.slac.stanford. edu/BFROOT/www/Computing/Environment/Standards/C++/cd2/ Sorry for the line break. -- Manni Life would be much easier if I had the source code.
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