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From: "vries at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug exp/26875] Incorrect value printed for address of first element
 of zero-length array
Date: Sat, 14 Nov 2020 12:04:58 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D26875

--- Comment #6 from Tom de Vries <vries at gcc dot gnu.org> ---
The simplest fix would be to make sure get_discrete_bounds always returns
defined *lowp and *highp:
...
diff --git a/gdb/gdbtypes.c b/gdb/gdbtypes.c
index 686edafcf64..9a891e7bfde 100644
--- a/gdb/gdbtypes.c
+++ b/gdb/gdbtypes.c
@@ -1043,6 +1043,8 @@ has_static_range (const struct range_bounds *bounds)
 int
 get_discrete_bounds (struct type *type, LONGEST *lowp, LONGEST *highp)
 {
+  *lowp =3D 0;
+  *highp =3D -1;
   type =3D check_typedef (type);
   switch (type->code ())
     {
...
which also happens to fix PR26870 - "[fortran] Printing dynamic array fails=
".

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