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From: "ian_harvey at bigpond dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/97036] New: [F2018] ELEMENTAL RECURSIVE subprogram
 prefix combination rejected
Date: Sat, 12 Sep 2020 21:01:26 +0000
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X-Bugzilla-Version: 11.0
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D97036

            Bug ID: 97036
           Summary: [F2018] ELEMENTAL RECURSIVE subprogram prefix
                    combination rejected
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ian_harvey at bigpond dot com
  Target Milestone: ---

F2018 removed the previous syntax restriction (F2008 C1245) on a subprogram
definition with both ELEMENTAL and RECURSIVE.

  MODULE m
    IMPLICIT NONE
  CONTAINS
    ELEMENTAL RECURSIVE SUBROUTINE foo
    END SUBROUTINE foo
  END MODULE m



$ gfortran --version
GNU Fortran (GCC) 11.0.0 20200905 (experimental)



$ gfortran -c 2020-09-13\ elemental-recursive.f90 -std=3Df2018
2020-09-13 elemental-recursive.f90:4:22:

    4 |   ELEMENTAL RECURSIVE SUBROUTINE foo
      |                      1
Error: ELEMENTAL attribute conflicts with RECURSIVE attribute at (1)
2020-09-13 elemental-recursive.f90:5:5:

    5 |   END SUBROUTINE foo
      |     1
Error: Expecting END MODULE statement at (1)=