Initialize PENF’s variables that are not initialized into the definition specification.
use penf
call penf_init
print FI1P, BYR4P
subroutine penf_init() !< Initialize PENF's variables that are not initialized into the definition specification. !< !<```fortran !< use penf !< call penf_init !< print FI1P, BYR4P !<``` !=> 4 <<< call check_endian is_initialized = .true. endsubroutine penf_init