Re: and_bits() usage

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  • Posted by ghaberek (admin) Oct 07, 2009
  • 1103 views

Here is how I use and_bits(). 

constant FLAG1 = #0001 
constant FLAG2 = #0002 
constant FLAG3 = #0004 
constant FLAG4 = #0008 
 
atom flags = or_bits( FLAG1, FLAG3 ) -- flags is #0005 
 
if and_bits( flags, FLAG1 ) then -- output is #0001 (true) 
  -- FLAG1 is set 
end if 
 
if and_bits( flags, FLAG2 ) then -- output is #0000 (false) 
  -- FLAG2 is set 
end if 
 
if and_bits( flags, FLAG3 ) then -- output is #0004 (true) 
  -- FLAG3 is set 
end if 
 
if and_bits( flags, FLAG4 ) then -- output is #0000 (false) 
  -- FLAG4 is set 
end if


-Greg

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