From: "Satyam Sharma" <[EMAIL PROTECTED]> Date: Sat, 26 May 2007 01:53:59 +0530
WHat is with multiple people asking about "!!" all of a sudden today? > Are all these occurrences merely the debris of > s/something/!notsomething/g kind of patches or is there some > dark, unknown C / gcc wizardry I have absolutely no clue of? "!!" is used in contexts where pointers might be being tested as well as plain integers, the "!!" turns a pointer into the equivalent integer boolean for testing. NULL pointers become 0 non-NULL pointers become 1 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
