RECORD I/O is supported, but with the following restrictions:
- REGIONAL(1) files larger than
2.1 Gigabytes are not supported.
- The EVENT clause on READ/WRITE statements is not supported.
- The UNLOCK statement is not supported.
- The following file attributes are not supported:
- BACKWARDS
- EXCLUSIVE
- TRANSIENT
- The following options of the ENVIRONMENT attribute are not supported,
but their use is flagged only under LANGLVL(NOEXT):
- ADDBUFF
- ASCII
- BUFFERS
- BUFND
- BUFNI
- BUFOFF
- INDEXAREA
- LEAVE
- NCP
- NOWRITE
- REGIONAL(2)
- REGIONAL(3)
- REREAD
- SIS
- SKIP
- TOTAL
- TP
- TRKOFL
Note that since the TOTAL option of the ENVIRONMENT attribute is not supported,
I/O to files using the TOTAL option will generally not perform as well as under the old compilers.
However, the support of the TOTAL option also meant that the old compilers had to use I/O buffers
that were always below the line, and the new compiler does not have this restriction.
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