FREE_LUN Procedure

Deallocates file units previously allocated with GET_LUN.

FREE_LUN, unit₁, ..., unit_n

unit_i The file units (logical unit numbers) to deallocate.

None.

If the specified file units are open, they are closed prior to the deallocation process.

Suppose that the first available logical unit number is 100.

GET_LUN, log_unit

; Returns the logical unit number to allocate (100).

OPENR, log_unit, 'test.dat'

; Open test.dat file for reading.

READF, log_unit, my_var

; Read the file.

FREE_LUN, log_unit

; Closes the file and frees the logical unit 100.

CLOSE, GET_LUN, POINT_LUN

For background information, see Logical Unit Numbers (LUNs) in Chapter 8 of the PV-WAVE Programmer's Guide.