penf_print Subroutine

  subroutine penf_print(unit, pref, iostat, iomsg)
  !---------------------------------------------------------------------------------------------------------------------------------
  !< Print to the specified unit the PENF's environment data.
  !---------------------------------------------------------------------------------------------------------------------------------
  integer(I4P), intent(in)            :: unit    !< Logic unit.
  character(*), intent(in),  optional :: pref    !< Prefixing string.
  integer(I4P), intent(out), optional :: iostat  !< IO error.
  character(*), intent(out), optional :: iomsg   !< IO error message.
  character(len=:), allocatable       :: prefd   !< Prefixing string.
  integer(I4P)                        :: iostatd !< IO error.
  character(500)                      :: iomsgd  !< Temporary variable for IO error message.
  !---------------------------------------------------------------------------------------------------------------------------------

  !---------------------------------------------------------------------------------------------------------------------------------
  if (.not.is_initialized) call penf_init
  prefd = '' ; if (present(pref)) prefd = pref
  if (endian==endianL) then
    write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)prefd//' This architecture has LITTLE Endian bit ordering'
  else
    write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)prefd//' This architecture has BIG Endian bit ordering'
  endif
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//' Reals kind, format and characters number:'
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//'   R16P: '//str(n=R16P)//','//FR16P//','//str(n=DR16P)
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//'   R8P:  '//str(n=R8P )//','//FR8P //','//str(n=DR8P )
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//'   R4P:  '//str(n=R4P )//','//FR4P //','//str(n=DR4P )
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//' Integers kind, format and characters number:'
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//'   I8P:  '//str(n=I8P )//','//FI8P //','//str(n=DI8P )
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//'   I4P:  '//str(n=I4P )//','//FI4P //','//str(n=DI4P )
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//'   I2P:  '//str(n=I2P )//','//FI2P //','//str(n=DI2P )
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//'   I1P:  '//str(n=I1P )//','//FI1P //','//str(n=DI1P )
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//' Reals minimum and maximum values:'
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//'   R16P: '//str(n=MinR16P)//','//str(n=MaxR16P)
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//'   R8P:  '//str(n=MinR8P )//','//str(n=MaxR8P )
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//'   R4P:  '//str(n=MinR4P )//','//str(n=MaxR4P )
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//' Integergs minimum and maximum values:'
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//'   I8P:  '//str(n=MinI8P )//','//str(n=MaxI8P )
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//'   I4P:  '//str(n=MinI4P )//','//str(n=MaxI4P )
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//'   I2P:  '//str(n=MinI2P )//','//str(n=MaxI2P )
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//'   I1P:  '//str(n=MinI1P )//','//str(n=MaxI1P )
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//' Reals bits/bytes sizes:'
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//'   R16P: '//str(n=BIR16P)//'/'//str(n=BYR16P)
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//'   R8P:  '//str(n=BIR8P )//'/'//str(n=BYR8P )
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//'   R4P:  '//str(n=BIR4P )//'/'//str(n=BYR4P )
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//' Integers bits/bytes sizes:'
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//'   I8P:  '//str(n=BII8P )//'/'//str(n=BYI8P )
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//'   I4P:  '//str(n=BII4P )//'/'//str(n=BYI4P )
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//'   I2P:  '//str(n=BII2P )//'/'//str(n=BYI2P )
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//'   I1P:  '//str(n=BII1P )//'/'//str(n=BYI1P )
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//' Machine precisions'
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//'   ZeroR16: '//str(ZeroR16,.true.)
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//'   ZeroR8:  '//str(ZeroR8 ,.true.)
  write(unit=unit,fmt='(A)',iostat=iostatd,iomsg=iomsgd)  prefd//'   ZeroR4:  '//str(ZeroR4 ,.true.)
  if (present(iostat)) iostat = iostatd
  if (present(iomsg))  iomsg  = iomsgd
  return
  !---------------------------------------------------------------------------------------------------------------------------------
  endsubroutine penf_print