The FORM specifier asks whether a file is connected for formatted, unformatted, or binary (W*32, W*64) data transfer. It takes the following form:
FORM = fm
fm
Is a scalar default character variable that is assigned one of the following values:
| 'FORMATTED' | If the file is connected for formatted data transfer |
| 'UNFORMATTED' | If the file is connected for unformatted data transfer |
| 'BINARY' | If the file is connected for binary data transfer |
| 'UNDEFINED' | If the file is not connected |