(j3.2006) request for interpretation

[Robert Corbett]

Consider the following program

       MODULE M1
         INTERFACE SUBR
           MODULE PROCEDURE SUBR1
         END INTERFACE
       CONTAINS
         SUBROUTINE SUBR1
         END SUBROUTINE
       END

       MODULE M2
         INTERFACE SUBR
           MODULE PROCEDURE SUBR2
         END INTERFACE
       CONTAINS
         SUBROUTINE SUBR2
         END SUBROUTINE
       END

       PROGRAM MAIN
         USE M1
         CALL S
       CONTAINS
         SUBROUTINE S
           USE M2
           CALL SUBR
         END SUBROUTINE
       END

Is this program standard conforming?

The program appears to violate the restrictions set out
in Section 16.2.3 of the Fortran 2003 standard.  It has
been argued that Section 12.4.4.1 of the Fortran 2003
standard modifies the requirements of Section 16.2.3.
While that might have been what was intended, I do not
see how the text of Section 12.4.4.1 has any effect on
the requirements of Section 16.2.3.

Robert Corbett