FIX: F1001: pgo2.c:1.6, line 189; with ISIGN Function

• Microsoft FORTRAN for MS-DOS, versions 5.0, 5.1
• Microsoft FORTRAN for OS/2, versions 5.0, 5.1

SYMPTOMS

The sample code below produces the following error during pass 3

fatal error F1001: Internal Compiler Error
(compiler file '@(#)pgo2.c:1.6', line 189)

RESOLUTION

If M is assigned a value before being used in the ISIGN function, the code compiles successfully.

STATUS

Microsoft has confirmed this to be a bug in the products listed above. This problem was corrected in FORTRAN PowerStation, version 1.0.

MORE INFORMATION

The following sample code can be used to demonstrate the problem. FORTRAN PowerStation produces error F4998: M : variable used but not defined.

Sample code

c      M = 1
      I = ISIGN(1,M)**2
      END 

Additional query words: 5.00 5.10 buglist5.00 buglist5.10 fixlist1.00

Keywords :
Version : :5.0,5.1
Platform :
Issue type :