Technical data

138
Appendix A: Run-Time Error Messages
When a run-time error occurs, the program terminates with one of the error
messages shown in Table A-1. All of the errors in the table are output in the
format user filename : message.
Table A-1 Run-Time Error Messages
Number Message/Cause
100 error in format
Illegal characters are encountered in FORMAT statement.
101 out of space for I/O unit table
Out of virtual space that can be allocated for the I/O unit table.
102 formatted io not allowed
Cannot do formatted I/O on logical units opened for unformatted I/O.
103 unformatted io not allowed
Cannot do unformatted I/O on logical units opened for formatted I/O.
104 direct io not allowed
Cannot do direct I/O on sequential file.
106 can’t backspace file
Cannot perform BACKSPACE/REWIND on file.
107 null file name
Filename specification in OPEN statement is null.
109 unit not connected
The specified filename has already been opened as a different logical
unit.
110 off end of record
Attempt to do I/O beyond the end of the record.
112 incomprehensible list input
Input data for list-directed read contains invalid character for its data
type.
113 out of free space
Cannot allocate virtual memory space on the system.