When performing WRITE or REWRITE operations on line sequential or line advancing files, the INSERTNULL option determines whether to insert NULL (x"00") characters before non-printable characters. The option also determines whether to strip out those NULL characters during READ operations.
INSERTNULL={ON|OFF}
ON | Insert NULL characters before non-printable characters. Strip out NULL characters during READ operations. |
OFF | Do not insert NULL characters before non-printable characters. Do not strip out NULL characters during READ operations. |
Default: | ON |
INSERTNULL takes precedence over the N run-time switch.
If you do not set INSERTNULL, the setting of the N run-time switch determines whether or not NULL characters are inserted before non-printable characters.