BUG: END DO Cannot Be on Separate Lines in Fixed-Form Source

• Microsoft Fortran PowerStation for Windows 95 and Windows NT, version 4.0

SYMPTOMS

Separating the DO statement's END DO block terminator by placing END and DO on separate lines in a fixed-form source file causes the following compilation errors to occur:

   error FOR3596: missing END DO statement

   -and-

   error FOR2173: column 6 non-blank on initial line in fixed-form source

   -and-

   error FOR3470: too many END statements or duplicate program unit

CAUSE

The compiler fails to recognize the END DO block terminator when END and DO are on separate lines in a fixed-from source file.

RESOLUTION

Place the END DO block terminator on a single line in a fixed-form source file.

STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION

Sample Code to Illustrate Problem

C Compile options needed: none

      INTEGER I
      DO I = 1,5
          WRITE(*,*) I
      END
     + DO           ! END DO must be on one line
      END