Comments

If u specifies an external unit that is not connected to a file, an implicit OPEN operation is performed that is equivalent to opening the file with the following options:

       OPEN(u
, FILE='FORT.u
', STATUS='UNKNOWN',       & ACCESS='SEQUENTIAL', FORM=fmt
)

The value of fmt is 'FORMATTED' if the write is formatted, and 'UNFORMATTED' otherwise.

A simple unsubscripted array name specifies all of the elements of the array in memory storage order, with the leftmost subscript increasing more rapidly.

The record number for direct-access files starts from one onwards.

Namelist-directed output is permitted on sequential access files only.