Developer Guide and Reference

ID 767251
Date 10/31/2024
Public
Document Table of Contents

INQUIRE: ASYNCHRONOUS Specifier

The ASYNCHRONOUS specifier asks whether asynchronous I/O is in effect. It takes the following form:

ASYNCHRONOUS = asyn

asyn

Is a scalar default character variable that is assigned one of the following values:

'NO'

If the file or unit is connected and asynchronous input/output is not in effect.

'YES'

If the file or unit is connected and asynchronous input/output is in effect.

'UNDEFINED'

If the file or unit is not connected.