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Subject: [Bug fortran/101320] Bind(C): Missing diagnostic for constraint
 C1557 on allocatable/pointer arguments
Date: Thu, 23 Sep 2021 23:45:59 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101320

--- Comment #1 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Sandra Loosemore <sandra@gcc.gnu.org>:

https://gcc.gnu.org/g:2646d0e06b170569be1da28fce1d6e2f03a15f60

commit r12-3871-g2646d0e06b170569be1da28fce1d6e2f03a15f60
Author: Sandra Loosemore <sandra@codesourcery.com>
Date:   Thu Sep 23 08:03:52 2021 -0700

    Fortran: Diagnose default-initialized pointer/allocatable dummies

    TS29113 changed what was then C516 in the 2010 Fortran standard (now
    C1557 in F2018) from disallowing all of pointer, allocatable, and
    optional attributes on dummy arguments to BIND(C) functions, to
    disallowing only pointer/allocatable with default-initialization.
    gfortran was previously failing to diagnose violations of this
    constraint.

    2021-09-23  Sandra Loosemore  <sandra@codesourcery.com>

            PR fortran/101320

    gcc/fortran/
            * decl.c (gfc_verify_c_interop_param): Handle F2018 C1557,
            aka TS29113 C516.

    gcc/testsuite/
            * gfortran.dg/c-interop/c516.f90: Remove xfails.  Add more
            tests.=