Article ID: 118437
Article Last Modified on 10/23/2003
APPLIES TO
- Microsoft FORTRAN Compiler 5.1
- Microsoft FORTRAN PowerStation 1.0 Standard Edition
This article was previously published under Q118437
SYMPTOMS
With FORTRAN PowerStation for MS-DOS, version 1.0, if extended error handling is enabled (through the /4Yb option or the $DEBUG menta command) and if there is an "ERR=" clause in an I/O statement, errors that occur after the I/O cause a "DX1020: unhandled exception" instead of a debug traceback. This only happens for errors that would be handled by extended error handling. The I/O may be a READ on WRITE on internal or external files.
With FORTRAN, version 5.1, no error message is generated; but the application hangs at the MS-DOS prompt in Windows, version 3.1, and may cause the system to crash.
STATUS
Microsoft has confirmed this to be a problem in FORTRAN PowerStation for MS- DOS, version 1.0. This problem was corrected in FORTRAN PowerStation for MS-DOS, version 1.0a.
MORE INFORMATION
To reproduce the problem, compile both code samples below using FORTRAN PowerStation for MS-DOS, version 1.0.
Sample Code 1
C Compile options needed: none, or use /4Yb and remove the first line
$debug
INTEGER j,k,i(3)
CHARACTER c*4
c='1234'
READ (c,'(i4)',err=10) k
10 continue
j = 0
i(j) = 1
END
Sample Code 2
C Compile options needed: /4Yb
INTEGER j
CHARACTER c*4
j = 2 000 000 000
WRITE (c,'(i4)',err=10) j
10 continue
j = j*j
END
Additional query words: 5.10 1.00 buglist5.10 buglist1.00 fixlist1.00a
Keywords: kbfix KB118437
