Features Deleted from Fortran 66

6.1.  Hollerith

• All notions of ``Hollerith'' (nh) as data have been officially removed, although our compiler, like almost all in the foreseeable future, will continue to support this archaism.

6.2.  Extended Range

• In Fortran 66, under a set of very restrictive and rarely-understood conditions, it is permissible to jump out of the range of a do loop, then jump back into it. Extended range has been removed in the Fortran 77 language. The restrictions are so special, and the implementation of extended range is so unreliable in many compilers, that this change really counts as no loss.