From: "Dave Korn" <dave.korn@artimi.com>
To: <cygwin@cygwin.com>
References: <1cbe225f0704160234u24b104a5o9b459178e895a5a8@mail.gmail.com> <1cbe225f0704160713q567ae44fg3d5cb1a9c1e0ab03@mail.gmail.com>
Subject: RE: C++ name with leading underscore character not Compiling
Date: Mon, 16 Apr 2007 15:27:57 +0100
Message-ID: <01ad01c78033$6db14510$2e08a8c0@CAM.ARTIMI.COM>
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On 16 April 2007 15:14, Chelton Evans wrote:

> Pre fixing the underscore character is a technique that was around
> before the language evolved.

> The compilers that I had used I had not encountered this before.

  :-)  Welcome to the post K'n'R world.  Things have changed a lot since
pre-1989; there's nothing else for it really, old code just has to be tidied
up.

> However after this discussion I will add the underscore character to
> the end of a variable instead of the start

  This is a well-used and fairly standard technique, particularly in
function-like macros where you want to avoid the risk of clashing with a
variable in the enclosed function.

> I went and checked the pre-processed code and a macro substitution had
> ocurred. 

  Heh, knew it.  Glad it's all cleared up now.

    cheers,
      DaveK
-- 
Can't think of a witty .sigline today....


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