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						Function dmd.target.Target.preferPassByRef
Decides whether an in parameter of the specified POD type is to be
 passed by reference or by value. To be used with -preview=in only!
						
					
				Parameters
| Name | Description | 
|---|---|
| t | type of the inparameter, must be a POD | 
Returns
true if the in parameter is to be passed by reference
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