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Re: [PATCH] PR c++/54372 - unused attribute inactive on dependant entities

From: Jason Merrill <jason at redhat dot com>
To: Dodji Seketeli <dodji at redhat dot com>
Cc: GCC Patches <gcc-patches at gcc dot gnu dot org>
Date: Mon, 24 Sep 2012 15:36:43 -0400
Subject: Re: [PATCH] PR c++/54372 - unused attribute inactive on dependant entities
References: <m3boh0oksx.fsf@redhat.com>

On 09/20/2012 10:01 AM, Dodji Seketeli wrote:

This is because in cplus_decl_attributes, save_template_attributes
makes so that the 'unused' attribute is applied to its appertaining
entity only at instantiation time.  But then at parsing time
maybe_warn_unused_local_typedefs checks for TREE_USED before warning.

I guess we should propagate TREE_USED when instantiating a typedef.

Jason

Follow-Ups:
- Re: [PATCH] PR c++/54372 - unused attribute inactive on dependant entities
  - From: Dodji Seketeli

References:
- [PATCH] PR c++/54372 - unused attribute inactive on dependant entities
  - From: Dodji Seketeli

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