Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!news.glorb.com!border3.nntp.dca.giganews.com!Xl.tags.giganews.com!border1.nntp.dca.giganews.com!nntp.giganews.com!local2.nntp.dca.giganews.com!nntp.earthlink.com!news.earthlink.com.POSTED!not-for-mail NNTP-Posting-Date: Sat, 04 Aug 2012 16:12:58 -0500 Message-ID: <501D9055.1408@mindspring.com> Date: Sat, 04 Aug 2012 17:12:53 -0400 From: pete Reply-To: pfiland@mindspring.com Organization: PF X-Mailer: Mozilla 3.04Gold (WinNT; I) MIME-Version: 1.0 Newsgroups: comp.lang.c Subject: Re: Trying to figure out how to dynamically re-allocate strings while concatenating References: <501D4D74.F6C@mindspring.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lines: 18 X-Usenet-Provider: http://www.giganews.com NNTP-Posting-Host: 4.154.221.233 X-Trace: sv3-rygB1tZBI1C7Wmwpy/FJ5eBQe8XoHxaw3j7OliCFfYTp7LlOHz/Q0rwYFbKelm7Yl4G4jV6WyGZ5wRB!6Pdl660Be0YHyxc0c2hQzjKR0xfrarGZGUC7gDKsUoP+RkEZ077nxE+v1flIQrNIKF9qV/SN9ZF+!aCnTnSUG5l8= X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.40 X-Original-Bytes: 1696 Xref: csiph.com comp.lang.c:24221 Eric Sosman wrote: > > On 8/4/2012 12:27 PM, pete wrote: > >[...] > > I see from your call to the free function, > > that you intend to free the allocated memory within main. > > > > If either call to strapp returns a null pointer, > > then your call to free, will free a null pointer instead. > > ... which is harmless, defined as a no-op. But then, freeing the allocated memory from within main, doesn't happen as it was apparently intended to happen. -- pete