IO_Units contains the identity of the current input and output streams.
Module | Variables |
---|---|
DEFINITIONS | DEFAULT_INPUT, DEFAULT_OUTPUT |
All the variables in this module are scalars and all are parameters.
Variable | Type | Purpose |
---|---|---|
INPUT | Integer | The unit number of the current input stream. |
OUTPUT | Integer | The unit number of the current output stream. |
Note that, at present, INPUT and OUTPUT always have the values defined by DEFAULT_INPUT and DEFAULT_OUTPUT, respectively.
None.
Fairly stable. At some time in the future, the module may be modified to allow input and output stream stacks.