Path: utzoo!utgpu!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!uflorida!haven!ncifcrf!nlm-mcs!adm!smoke!gwyn From: gwyn@smoke.BRL.MIL (Doug Gwyn ) Newsgroups: comp.lang.c Subject: Re: Does your compiler get this program right? Message-ID: <9018@smoke.BRL.MIL> Date: 30 Nov 88 18:59:22 GMT References: <4082@cs.utexas.edu> <350@lakart.UUCP> Reply-To: gwyn@brl.arpa (Doug Gwyn (VLD/VMB)) Organization: Ballistic Research Lab (BRL), APG, MD. Lines: 12 In article <350@lakart.UUCP> dg@lakart.UUCP (David Goodenough) writes: -In particular, if I say - extern char *zoot(); - *(zoot()) += '\001'; -and zoot() gets called twice in evaluating the above statement, then I'm -going to ditch my C compiler because it's broken. If the standard says that -zoot() can be called twice, then I'm going to ignore the standard, because -IT'S broken. The Standard has this right. The problem reported, *f++ += *g++; causing f to be incremented twice, is clearly wrong. In fact it's a bug in many versions of PCC.