Date: Mon, 21 Oct 2013 11:29:55 +0100 From: Bruce Cran <bruce@cran.org.uk> To: Benjamin Kaduk <kaduk@MIT.EDU>, sbruno@freebsd.org Cc: "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org> Subject: Re: gperf -- #define for if (0) ; else for Message-ID: <52650223.2020707@cran.org.uk> In-Reply-To: <alpine.GSO.1.10.1310210011120.4934@multics.mit.edu> References: <1382327705.2610.9.camel@localhost> <alpine.GSO.1.10.1310210011120.4934@multics.mit.edu>
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On 10/21/2013 5:13 AM, Benjamin Kaduk wrote: > >> 37 >> 38 /* Assume ISO C++ 'for' scoping rule. */ >> 39 #define for if (0) ; else for > > StackOverflow (!) [1] suggests that they're a workaround for a bug in > old versions of Visual Studio. http://msdn.microsoft.com/en-us/library/b80153d8%28v=vs.90%29.aspx also documents it. Visual C++ 6 was released in 1998, which was unfortunately the same year as the first ISO C++ standard. -- Bruce Cran
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