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From: "jwakely.gcc at gmail dot com" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug gdb/28480] pretty printing getting confused
Date: Thu, 04 Nov 2021 17:09:26 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D28480

--- Comment #10 from Jonathan Wakely <jwakely.gcc at gmail dot com> ---
I think this is the fix:

--- a/libstdc++-v3/python/libstdcxx/v6/printers.py
+++ b/libstdc++-v3/python/libstdcxx/v6/printers.py
@@ -258,7 +258,7 @@ class UniquePointerPrinter:
         tuple_head_type =3D tuple_impl_type.fields()[1].type   # _Head_base
         head_field =3D tuple_head_type.fields()[0]
         if head_field.name =3D=3D '_M_head_impl':
-            self.pointer =3D tuple_member['_M_head_impl']
+            self.pointer =3D tuple_member.cast(tuple_head_type)['_M_head_i=
mpl']
         elif head_field.is_base_class:
             self.pointer =3D tuple_member.cast(head_field.type)
         else:

--=20
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