The NEXTREC specifier asks where the next record can be read
or written in a file connected for direct access. It takes the
following form:
NEXTREC = nr
- nr
- Is an integer scalar memory reference whose value depends on
the following conditions:
- If a record was previously read or written on the
specified unit, the value of nr is one more than the
number of that record.
- If no records have been read or written, the value of
nr is 1.
- If the file is not opened for direct access or if
the position is indeterminate because of an error condition,
nr is zero.
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