[1]The units depend on the value of the
FORTRANOPT environment variable. If the value is vaxio, then the
record length is in units of 32-bit words. If FORTRANOPT is not defined,
or its value is something other than vaxio, then the record length is
always in units of bytes.
2On DOS systems a \c\n terminates a record.
3 If IOSTAT and ERR are not present, the program terminates if an
error occurs.
[4]
5 This format is applied when the option -Munixlogical is
selected when compiling.