Q27476: Guidelines for Interfacing FORTRAN with Compiled BASIC

Article: Q27476
Product(s): See article
Version(s): 4.00 4.00b 4.50
Operating System(s): MS-DOS
Keyword(s): ENDUSER | B_BasicCom | mspl13_basic
Last Modified: 14-DEC-1988

Interfacing FORTRAN with compiled BASIC is fairly straightforward;
however, there are several rules to observe.

These rules are as follows:

1. FORTRAN should not be linked with the small-memory model.

2. When compiling the FORTRAN subroutine, no special switches need to
   be used. However, you need to LINK the BASIC and FORTRAN routines
   with the /NOE option.

3. FORTRAN has the ability to call BASIC subprograms; however, the
   FORTRAN routine that calls the BASIC subprograms must have
   originally been called by a BASIC main program.

4. All variables that are passed from a FORTRAN routine to a BASIC
   subprogram must be [NEAR] variables.

5. FORTRAN routines can be used in a quick library if so desired.

6. Microsoft FORTRAN Version 4.00 is needed to correctly interface
   with QuickBASIC Version 4.00. Microsoft FORTRAN Version 4.10 is
   needed to correctly interface with QuickBASIC Versions 4.00b and
   4.50 or BASIC Compiler Versions 6.00 and 6.00b programs.

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