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Re: [C,C++] integer constants in attribute arguments

From: Jason Merrill <jason at redhat dot com>
To: gcc-patches at gcc dot gnu dot org
Date: Mon, 03 Feb 2014 11:57:58 -0500
Subject: Re: [C,C++] integer constants in attribute arguments
Authentication-results: sourceware.org; auth=none
References: <alpine dot DEB dot 2 dot 02 dot 1311301103070 dot 10346 at stedding dot saclay dot inria dot fr> <52C5DD73 dot 2070305 at redhat dot com> <alpine dot DEB dot 2 dot 02 dot 1401182314190 dot 23143 at stedding dot saclay dot inria dot fr>

On 01/18/2014 05:33 PM, Marc Glisse wrote:

So when we have: __attribute__((nonnull(bar,bar)))
the parser will keep bar as an identifier for the first argument, but
parse the second one as an expr-list and thus find the associated
function_decl.

OK, that makes sense. But why do we need to handle that specially?Isn't that an invalid argument whether or not it decays to a pointer?


Jason

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