f96a1e7a   
   From: no.spam.here@its.invalid   
      
   On 11/3/2011 4:54 PM, Frank Bergemann wrote:   
   >   
   >   
   > Btw - concerning your comment:   
   > Are class data members like _xPos still allowed? (or is such also   
   > deprecated? not recommended?)   
   > I wonder about it, because naming class data member this way is widely   
   > used.   
   > But then there is just the differences between first uppercase vs.   
   > first lowercase letter (after the single underscore)   
   > for "exhibit undefined behavior"(?!)   
   >   
      
   Initial underscore with lower case is reserved only in global scope   
   (17.4.3.1.2).   
      
   So in class scope, it's fine.   
      
   Initial underscore followed by upper case is always   
   reserved.  Any double underscore is also always reserved.   
      
   So _xPos is OK as a member, but _XPos is not, even as   
   a class member.   
      
      
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