Find value from longfill

Comments

• andrewsi Posts: 59

  2010-12-29 20:01 edited 2010-12-29 20:01

  I'd love to try to help, but I'm finding your description very hard to understand. LONGFILL will take a certain value and fill a range of memory with that value repeatedly. What are you trying to compare, and what are you trying to accomplisb?
• JonnyMac Posts: 9,387

  2010-12-29 23:22 edited 2010-12-29 23:22

  As Andrew points out, longfill will fill the group of longs with the same value -- longmove copies a set of values from one location to another. You could write a simple compare method like this to see if one set of longs matches another:
  

  pub lcompare(pntr1, pntr2, len) | count
  
    count := 0
  
    repeat len
      if (long[pntr1][count] == long[pntr2][count])
        count += 1 
      else
        quit 
  
    return (count == len)
  

  
  You have to pass the addresses of the arrays you want to check, as well as the length. If they match, you get true back, otherwise false.
• Ariba Posts: 2,693

  2010-12-30 03:34 edited 2010-12-30 03:34

  If you define the 3 longs as an array, then you can access them easy.

  VAR
   long longvars[3]
   long ok, i
  
  PUB TestIt
    longfill(@longvars, 9999, 3)  'fill the 3 longs
    ok := true
    repeat i from 0 to 2
      if longvars[i] <> 9999      'test if value matches
        ok := false
  

  If you only have a pointer to the 3 longs then use the methode that JonnyMac shows.
  
  Andy
• bennettdan Posts: 614

  2010-12-30 14:12 edited 2010-12-30 14:12

  Thanks Andrew, Jon and Andy
  Let me see if I understand you gentlemen right if I have the Pointer name and Length of the long I am looking for then Jon's example will return true it if it is match. If I want to scan each Value in an array of longs then Andy's example will look at each Value not just the name and length. Is this Correct?