sap - Cleanest way to flip a Boolean -


Are there any current methods or function modules that flip the boolean values ​​efficiently?

I have come up with a simple implementation that should define my utility method, but I am thinking that this is the most efficient approach: 

  IF iv_bool = Abap_true Rt_bool = abap_false ELSEIF iv_bool = abap_false rt_bool = abap_true Other Rt_bool = abap_undefined if end.   
 Edit: As described by Smigs, this implementation flips three valuable booleans or "trileans"   
 
 
  rt_bool = boolc (iv_bool )   
 However a Boolean will flip, it will not deal with abap_undefined.  
 From 740 SP08, you can use the  xsdbool ()  instead of  boolc ()  to get the same result given examples There is no difference to, but  xsdbool ()  is

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