Programming instructions

Intermec Fingerprint v7.61 – Programmer’s Reference Manual Ed. 776
Chapter 2 Program Instructions
EOF
Field of Application Function for checking for an end-of-fi le condition.
Syntax EOF(<nexp>)
<nexp> is the number assigned to the fi le when it was OPENed.
Remarks The EOF function can be used with fi les OPENed for sequential input in
connection with the statements INPUT#, LINE INPUT#, and INPUT$ to
avoid the error condition “Input past end” which has no error message.
When the EOF function encounters the end of a fi le, it returns the value -1
(true). If not, it returns the value 0 (false).
Example 10 DIM A%(10)
20 OPEN "DATA" FOR OUTPUT AS #1
30 FOR I%=1 TO 10
40 PRINT #1, I%*1123
50 NEXT I%
60 CLOSE #1
70 OPEN "DATA" FOR INPUT AS #2
80 I%=0
90 WHILE NOT EOF(2)
100 INPUT #2, A%(I%):PRINT A%(I%)
110 I%=I%+1:WEND
120 IF EOF(2) THEN PRINT "End of File"
RUN
yields:
1123
2246
3369
4492
5615
6738
7861
8984
10107
11230
End of File