56
EOF
(#)
(end of file)
Function
to
locate end of data file data.
Format:
EOF
(#
<logical
number»
Abbreviated form:
EO.(#
Explanation:
• The function used to determine the end
of
the data for file read-out.
• When read-out continues after the end
of
data in the data file, there is no error
generation, and
0
or
null ("
")
is provided as the data value.
• Error
is
generated, however, when
data
are read out from CMT.
• This function
is
used in combination with the IF statement and placed after each
INPUT statement.
Example
10
ROPEN
#3,"
DATA"
20
I
NPUT#3,A
30
IF
EOF(
#3)
THEN
END
40
PR
I
NT
A
50
GOTO
20
..... With this program data are read-out in sequence from the
"DATA"
file and are
displayed on the screen.
And,
if the read-out data are out of file, this process
should be end.
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