[LLVMbugs] [Bug 8806] Incorrect warning: expression result unused

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Sat Dec 18 14:00:22 PST 2010


Chris Lattner <clattner at apple.com> changed:

           What    |Removed                     |Added
             Status|NEW                         |RESOLVED
         Resolution|                            |INVALID

--- Comment #1 from Chris Lattner <clattner at apple.com> 2010-12-18 16:00:22 CST ---
The warning is correct.  "a,b" is a comma expression which evaluates and throws
away the value of "a".  That for loop compiles to the exact same code as:

for (NSUInteger j = finish; j != NSUIntegerMax; j--) {

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