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Re: [C++] PATCH to give the anonymous namespace a null DECL_NAME

Jason Merrill <> writes:

> Dan Berlin recently submitted a patch to dwarf2out.c for namespace support,
> which would avoid giving the anonymous namespace a name attribute by
> exporting anonymous_namespace_name to language-independent code.  I thought
> it would be cleaner to just give the anonymous namespace a null DECL_NAME;
> this patch implements that.  The name for use in mangling is assigned to
> Tested x86_64-pc-linux-gnu, held off pending Mark's approval for the
> accompanying dwarf2out.c patch.

Could you give the NULL in this case a different name (that is, use

When we get IMA for C++, we will have multiple anonymous namespaces in
the same program, and they can't all be NULL_TREE.  The name will make
it easier to find all the places that need to be changed.

> 2003-12-08  Jason Merrill  <>
> 	Give the anonymous namespace a null DECL_NAME.
> 	* cp-tree.h: Don't declare anonymous_namespace_name.
> 	* decl.c: Don't define it.
> 	* dump.c (cp_dump_tree): Don't check for it.
> 	* cxx-pretty-print.c (pp_cxx_original_namespace_definition): Likewise.
> 	* error.c (dump_decl): Likewise.
> 	* name-lookup.c: Define it here.
> 	(push_namespace): Put it in DECL_ASSEMBLER_NAME instead.
> 	* mangle.c (write_unqualified_name): Adjust.
- Geoffrey Keating <>

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