FREE_LUN Procedure

Deallocates file units previously allocated with GET_LUN.

Usage

    FREE_LUN, unit1, ..., unitn

Input Parameters

uniti—The file units (logical unit numbers) to deallocate.

Keywords

None.

Discussion

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

Example

; Open test.dat file for reading and allocate a logical unit number.
OPENR, log_unit, !Data_dir + 'mandril.img', /Get_lun
; Read the file.
mandril_img = BYTARR(512, 512)
READU, log_unit, mandril_img
; Closes the file and frees the logical unit.
FREE_LUN, log_unit

See Also

CLOSE, GET_LUN, POINT_LUN

For background information, see the section Logical Unit Numbers (LUNs) in the PV‑WAVE Programmer’s Guide.