WEOF
WEOF statement allows the program to write an EOF mark on an attached tape device.
COMMAND SYNTAX
WEOF { ON expression }
SYNTAX ELEMENTS
expression specifies the device channel to use. It should evaluate to a numeric integer argument in the range 0-9, the default value is zero.
NOTES
If the WEOF fails it then executes the statements associated with any ELSE clause. SYSTEM(0) will return the reason for the failure as follows:
Code | Description |
---|---|
1 | There is no media attached to the channel. |
2 | End of media found. |
A "tape" does not refer to magnetic tape devices only but to any device described previously to TAFC.
If the specified channel has no assigned tape device, it enters the TAFC debugger with an appropriate message.
EXAMPLE
WEOF ON 5 ELSE CRT "No tape device exists for channel 5" END
Last update: Sat, 16 Jul 2022 15:34