Comments on: Gotcha: GCC and Unused Values http://MacDeveloperTips.com/xcode/gotcha-gcc-and-unused-values.html Tips, tools and code for iPhone and Mac developers. Fri, 30 Jul 2010 22:59:45 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: Glenn http://MacDeveloperTips.com/xcode/gotcha-gcc-and-unused-values.html/comment-page-1#comment-716 Glenn Wed, 29 Apr 2009 19:47:27 +0000 http://MacDeveloperTips.com/?p=267#comment-716 I would expect "x -+ 1" to treat the + as a unary operator, making the expression "x - (+1)". No, it's not an Objective-C thing; the expression compiles just fine (and works as postulated above) in standard C. I would expect “x -+ 1″ to treat the + as a unary operator, making the expression “x – (+1)”.

No, it’s not an Objective-C thing; the expression compiles just fine (and works as postulated above) in standard C.

]]> By: john http://MacDeveloperTips.com/xcode/gotcha-gcc-and-unused-values.html/comment-page-1#comment-701 john Tue, 07 Apr 2009 03:09:16 +0000 http://MacDeveloperTips.com/?p=267#comment-701 Like yourself, I was surprised this even compiled, which is essentially the reason for the post. I made this as a typo and it took some time to track down the problem... Like yourself, I was surprised this even compiled, which is essentially the reason for the post. I made this as a typo and it took some time to track down the problem…

]]> By: Trevor http://MacDeveloperTips.com/xcode/gotcha-gcc-and-unused-values.html/comment-page-1#comment-700 Trevor Tue, 07 Apr 2009 02:36:34 +0000 http://MacDeveloperTips.com/?p=267#comment-700 What exactly is the -+ operator? Is it an Objective-C thing? I wouldn't have expected the above code to even compile. What exactly is the -+ operator? Is it an Objective-C thing? I wouldn’t have expected the above code to even compile.

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