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  • Subject: Re: how to create unsigned hexadecimal initial value
  • From: "Leif Svalgaard" <leif@xxxxxxxx>
  • Date: Fri, 25 Aug 2000 05:54:32 -0500

From: <rjd@us.ibm.com>
> In my opinion, the PRM is working as designed. 
> it may not be clear that H literals describe signed values

it may not be clear to the PRM/translator either.

If H literals were signed then the value of H'FF' should be -1.
The following little program (signed FLAG):

DCL DD FLAG AUTO BIN(4) INIT(H'FF');  
         DCL DD XXXX CHAR(4) DEF(FLAG);        
CVTHC MSG-TEXT(1:8), XXXX;   
CALLI SHOW-MESSAGE, *, .SHOW-MESSAGE;

should then show FFFFFFFF, but here is the result:
 
 Type reply (if required), press Enter.                                   
   From  . . . :   LSVALGAARD     08/25/00   05:41:48                     
   000000FF

So, clearly H'FF' has the value 255 instead of -1
hence is unsigned.



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