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   comp.os.vms      DEC's VAX* line of computers & VMS.      264,096 messages   

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   Message 262,312 of 264,096   
   Dave Froble to All   
   Re: basic BASIC question   
   31 Jan 25 19:38:04   
   
   From: davef@tsoft-inc.com   
      
   On 1/31/2025 11:53 AM, Arne Vajhøj wrote:   
   > On 1/31/2025 11:39 AM, Dave Froble wrote:   
   >> On 1/31/2025 10:18 AM, Arne Vajhøj wrote:   
   >>> Is it common to use:   
   >>>   
   >>> declare integer constant TRUE = -1   
   >>> declare integer constant FALSE = 0   
   >>>   
   >>>   
   >>> ?   
   >>   
   >> It works.  Doesn't really matter if declared a constant.  Zero is false,   
   >> anything else is true.  Using 1 vs -1 has been more my experience.   
   >   
   > I got the impression that the manual/compiler prefer -1 over 1.   
      
   Manuals usually have a preference, but, can be incomplete.   
      
   > print not 0%   
   >   
   > does print -1.   
      
   That is an operation to flip the bits.  The opposite of 0000000000000000 is   
   1111111111111111 ...   
      
      
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   David Froble                       Tel: 724-529-0450   
   Dave Froble Enterprises, Inc.      E-Mail: davef@tsoft-inc.com   
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