Article ID: 37544
Article Last Modified on 12/1/2003
APPLIES TO
- Microsoft FORTRAN Compiler 4.0
- Microsoft FORTRAN Compiler 4.01
- Microsoft FORTRAN Compiler 4.1
- Microsoft FORTRAN Compiler 5.0
- Microsoft FORTRAN Compiler 5.1
- Microsoft FORTRAN Compiler 4.1
- Microsoft FORTRAN Compiler 5.0
- Microsoft FORTRAN Compiler 5.1
- Microsoft FORTRAN PowerStation 1.0 Standard Edition
- Microsoft Fortran PowerStation 1.0a for MS-DOS
- Microsoft FORTRAN PowerStation 32
- Microsoft FORTRAN PowerStation 32
This article was previously published under Q37544
SUMMARY
In a COMMON block, an array must be declared with explicit dimensions; it cannot have an adjustable or assumed size. According to the ANSI FORTRAN standard (ANSI x3.9-1978, section 5.1.2), each array declarator is either an actual array declarator or a dummy array declarator. An adjustable-size array declarator and an assumed-size array declarator are dummy array declarators. A dummy array declarator is not permitted in a COMMON statement. Therefore, an adjustable-sized or an assumed-size array cannot be declared in a COMMON block.
In an application, one subprogram can pass an array as an argument to a subprogram and declare the argument with a dummy array declarator in a DIMENSION statement.
Sample Code
C Compiler options required: If array R has HUGE size, C specify the HUGE attribute on R or the /AH compiler option switch. PROGRAM TEST COMMON R(32000) CALL DOIT(R) END SUBROUTINE DOIT (R) DIMENSION R[HUGE](*) RETURN END
Additional query words: kbinf 1.00 4.00 4.10 5.00 5.10 assumed-size
Keywords: kblangfortran KB37544