FIX: Compiler Displays Incorrect Line-Number Information (111091)

The information in this article applies to:

Microsoft FORTRAN PowerStation for MS-DOS 1.0
Microsoft FORTRAN PowerStation for MS-DOS 1.0a
Microsoft Fortran Powerstation 32 for Windows NT 1.0

This article was previously published under Q111091

SYMPTOMS

An attempt to compile a file that contains more than 32767 source lines may produce incorrect line-number information for compile-time error and warning messages appearing after the 32767th line in a file. The line numbers displayed are either negative or fall in the 0 (zero) to 32767 range.

When compiling from within the Visual Workbench, you cannot automatically jump to lines containing these invalid line numbers.

CAUSE

The line-number information is displayed as an INTEGER*2 value.

RESOLUTION

If a subprogram is less than 32K in size, place the subprogram in a separate file when compiling. Once debugged, the source file can be added to the end of the original file if desired.

STATUS

Microsoft has confirmed this to be a problem in FORTRAN PowerStation 32 for Windows NT and MS-DOS, version 1.0 and 1.0A. This problem was fixed in FORTRAN PowerStation, version 4.0.

MORE INFORMATION

The following code can be compiled and run to create a sample that demonstrates the problem:

Sample Code

c Compile options needed: none
c
      open(1,file='b.for',status='new')  ! Creates B.FOR
      write(1,*)   '     x = 0'
      do i=1,32*1024 - 1
        write(1,*) '     x = x + 1'
      end do
      write(1,*)   '     x == x + 1'
      write(1,*)   '     print*, x'
      write(1,*)   '     end'
      end

Modification Type:	Major	Last Reviewed:	10/17/2003
Keywords:	kbbug kbfix KB111091