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is WAIT ( wait-spec-list )|
is UNIT = io-unit|
or ID = scalar-default-int-expr
or ERR = label
or IOSTAT = label
- A wait-spec-list shall contain exactly one UNIT=
specifier, exactly one ID= specifier, and at most one of
each of the other specifiers.
The WAIT statement terminates an asynchronous data transfer.
The IOSTAT= and ERR= specifiers are optional and are
described in sections 22.214.171.124 and 126.96.36.199, respectively.
to implementors.Implementors may choose to implement any or all asynchronous I/O
synchronously. This essentially means using the ID= clause
on the data transfer statement to record the results of the
transfer, then supplying the results to the matching WAIT
(End of advice to implementors.)