Handle possible narrowing of data type between unsigned long and signed long
Handle possible narrowing of data type between unsigned long and signed long

pieis2pi/Slic3r,pieis2pi/Slic3r,alexrj/Slic3r,pieis2pi/Slic3r,lordofhyphens/Slic3r,lordofhyphens/Slic3r,pieis2pi/Slic3r,alexrj/Slic3r,alexrj/Slic3r,curieos/Slic3r,lordofhyphens/Slic3r,alexrj/Slic3r,pieis2pi/Slic3r,curieos/Slic3r,curieos/Slic3r,alexrj/Slic3r,curieos/Slic3r,lordofhyphens/Slic3r,curieos/Slic3r,curieos/Slic3r,alexrj/Slic3r,lordofhyphens/Slic3r,lordofhyphens/Slic3r,pieis2pi/Slic3r