Purpose
 
		 
		 Equivalent to POINTERADD(x,-y). 
		
 
	  
 
	 Syntax
 
		 
		POINTERSUBTRACT(x,y)
 
		Abbreviation(s): PTRSUBTRACT for POINTERSUBTRACT. 
	  
 
	 Parameters
 
		 
		 
		   
			 - x 
			 
 
 
			 - A pointer expression. 
			 
 
 
		   
		
 
		 
		   
			 - y 
			 
 
 
			 - Expression that has a computational type and is converted to FIXED BINARY(31,0). 
			 
 
 
		   
		
 
	  
 
	 Description
 
		 
		POINTERSUBTRACT is equivalent to POINTERADD(x,-y). It can be abbreviated as PTRSUBTRACT.