anchor.diff: +module Box3dModule
  +
   use NumberKindsModule
   use UtilitiesModule
   use SphereGeomModule
  
positive.code:      procedure :: init
       procedure :: containsPoint
       procedure :: bisectAll
       procedure :: bisectAlongDims
       procedure :: logStats
       procedure :: minEdgeLength
       procedure :: maxEdgeLength
       procedure, private :: calc_min_radius
  
negative.code: 
  contains
  
  pure subroutine init(self, xmin, xmax, ymin, ymax, zmin, zmax)
    class(Box3d), intent(inout) :: self
    real(kreal), intent(in) :: xmin, xmax, ymin, ymax, zmin, zmax
    
  