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From: "kargls at comcast dot net" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/114815] internal compiler error: Segmentation fault -
 on creating type with len parameter and dependent on it character array
Date: Tue, 23 Apr 2024 01:15:51 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114815

kargls at comcast dot net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |kargls at comcast dot net

--- Comment #1 from kargls at comcast dot net ---
(In reply to Dmitrii from comment #0)
> The following code lets gfortran crash:=20
>=20
> program lab_1_4
>     type Student_Group(Size)
>         integer, len :: Size
>         character :: Genders(Size) =3D ""
>     end type Student_Group
>=20
>     type(Student_Group(22)) :: Group
> end program lab_1_4
>=20
> I have this crash on both my systems:
> - GNU Fortran 12.2.0 on Debian 12 (bookworm) 6.1.0.-17-amd64 (virtual
> machine)
> - GNU Fortran 13.2.0 on MacOS on Apple M1 Sonoma 14.4.1 (Homebrew GCC 13.=
2.0)
>=20
> When I compile file with provided code, it consistently results in a
> segmentation fault. It doesn=E2=80=99t matter what compilation flags I se=
t, it
> reproduced always.

Parameterized derived types (PDT) are known to have issues.  It is best
to avoid their use with gfortran if you can.

This is likely a duplicate PR, but I no longer have the ability to edit PR
metadata. :(=