From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.3 required=5.0 tests=BAYES_00,INVALID_MSGID autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 146b77,d275ffeffdf83655 X-Google-Attributes: gid146b77,public X-Google-Thread: f5d71,d275ffeffdf83655 X-Google-Attributes: gidf5d71,public X-Google-Thread: 103376,d275ffeffdf83655 X-Google-Attributes: gid103376,public X-Google-Thread: 109fba,d275ffeffdf83655 X-Google-Attributes: gid109fba,public From: Geoff Bull Subject: Re: Ada vs C++ vs Java Date: 1999/02/06 Message-ID: <36BAF083.6C413B3D@acenet.com.au>#1/1 X-Deja-AN: 440983096 Content-Transfer-Encoding: 7bit References: <369C1F31.AE5AF7EF@concentric.net> <369DDDC3.FDE09999@sea.ericsson.se> <369e309a.32671759@news.demon.co.uk> <77ledn$eu7$1@remarQ.com> <77pnqc$cgi$1@newnews.global.net.uk> <8p64spq5lo5.fsf@Eng.Sun.COM> <77t3ld$nou$1@nnrp1.dejanews.com> <79ce4s$lfq$1@nnrp1.dejanews.com> <79chc7$ko6@drn.newsguy.com> X-Accept-Language: en Content-Type: text/plain; charset=us-ascii X-Complaints-To: abuse@telstra.net X-Trace: nsw.nnrp.telstra.net 918221198 203.35.118.1 (Sat, 06 Feb 1999 00:26:38 EST) Organization: Telstra Big Pond Direct MIME-Version: 1.0 NNTP-Posting-Date: Sat, 06 Feb 1999 00:26:38 EST Newsgroups: comp.lang.ada,comp.lang.c++,comp.vxworks,comp.lang.java Date: 1999-02-06T00:00:00+00:00 List-Id: mike wrote: > C++ now, after becoming a standard, and with the standard library is a > very safe language. Not quite! $ cat rat.c #include int* one () {return &(1);} int* two () {return &(2);} void main (int argc, char** argv) { int* one_ptr = one (); int* two_ptr = two (); printf ("one = %d\n", *one_ptr); one_ptr = one (); printf ("two = %d\n", *two_ptr); } $ ./rat one = 2 two = 1 One C compiler I used issued a warning, the other didn't. You might think this is a ridiculous example, but I have torn my hair out trying to find bugs as stupid as this code. I can't think how I could possibly code this in Ada. Then there's the write off the end of the array trick ... Geoff