anchor.diff:          [<CompiledName("MapIndexed")>]
           let mapi mapping array = 
               checkNonNull "array" array
  -            let f = OptimizedClosures.FSharpFunc<_,_,_,_>.Adapt(mapping)
  +            let f = OptimizedClosures.FSharpFunc<_, _, _, _>.Adapt(mapping)
               initBased (base1 array) (base2 array) (length1 array) (length2 array) (fun i j -> f.Invoke(i, j, array.[i,j]))
   
           [<CompiledName("Copy")>]
  
positive.code:             if targetIndex1 < targetX0 then invalidArgOutOfRange "targetIndex1" targetIndex1 "target axis-0 lower bound" targetX0
              if targetIndex2 < targetY0 then invalidArgOutOfRange "targetIndex2" targetIndex2 "target axis-1 lower bound" targetY0
              if sourceIndex1 + count1 > sourceXN then 
                  invalidArgOutOfRange "count1" count1 ("source axis-0 end index = " + string(sourceIndex1+count1) + " source axis-0 upper bound") sourceXN
              if sourceIndex2 + count2 > sourceYN then 
                  invalidArgOutOfRange "count2" count2 ("source axis-1 end index = " + string(sourceIndex2+count2) + " source axis-1 upper bound") sourceYN
              if targetIndex1 + count1 > targetXN then 
                  invalidArgOutOfRange "count1" count1 ("target axis-0 end index = " + string(targetIndex1+count1) + " target axis-0 upper bound") targetXN
              if targetIndex2 + count2 > targetYN then 
                  invalidArgOutOfRange "count2" count2 ("target axis-1 end index = " + string(targetIndex2+count2) + " target axis-1 upper bound") targetYN
  
              for i = 0 to count1 - 1 do
                  for j = 0 to count2 - 1 do
                      target.[targetIndex1+i,targetIndex2+j] <- source.[sourceIndex1+i,sourceIndex2+j]
  
          
  
negative.code: 
          [<CompiledName("ZeroCreateBased")>]
          let zeroCreateBased (base1:int) (base2:int) (length1:int) (length2:int) = 
              if base1 = 0 && base2 = 0 then 
  #if NETSTANDARD
                  zeroCreate length1 length2
  #else                
  