The /datasave qualifier tells KAP to treat local
variables in a subroutine or function that appear in DATA statements
as if they were also in SAVE statements. That is, their values will
be retained between invocations of the subroutine or function. This
is the practice of many commercial Fortran compilers. This choice
affects certain optimizations performed by KAP.
The negative qualifier, /nodatasave , complies with the
Fortran 77 standard.
See also the /save command qualifier.