In addition to the essential array specifications, you can also
code the following specifications or keywords for prerun-time arrays.
On the definition specifications, you can specify
- The name of the file with the array input data, using the FROMFILE
keyword.
- The name of a file to which the array is written at the end of
the program, using the TOFILE keyword.
- The number of elements per input record, using the PERRCD keyword.
- The external format of numeric array data using the EXTFMT keyword.
- An alternating format using the ALT keyword.
Note: The integer or unsigned format cannot be specified
for arrays defined with more than ten digits.
On the file-description specifications, you can specify a T in
position 18 for the file with the array input data.