[Bug fortran/48145] New: Generic interfaces & derived types cannot share names

[townsend at astro dot wisc.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48145

           Summary: Generic interfaces & derived types cannot share names
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: towns...@astro.wisc.edu


Created attachment 23677
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23677
Test case demonstrating issue

There seems to be a problem when a generic interface and a derived type share
the same name. Compiling the attached code with 4.6.0 (20110312) on OS X
10.6.6, I get the following error:

test_name_conflict.f90:7.18:

  interface mytype
                  1
Error: DERIVED attribute of 'mytype' conflicts with PROCEDURE attribute at (1)
test_name_conflict.f90:8.22:

     module procedure new_mytype
                      1
Error: MODULE PROCEDURE at (1) must be in a generic module interface
test_name_conflict.f90:9.5:

  end interface
     1
Error: Expecting END MODULE statement at (1)

This conflict is bogus, since the F2003 standard allows derived types to share
names with generic interfaces (see, e.g., Appendix C.1.6 of the standard).