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From: Paolo Carlini <paolo.carlini@oracle.com>
To: "gcc-patches@gcc.gnu.org" <gcc-patches@gcc.gnu.org>
Cc: Jason Merrill <jason@redhat.com>
Subject: Re: [C++ Patch/RFC] PR 89900 ("[9 Regression] ICE: Segmentation fault (in check_instantiated_arg)")
Date: Fri, 12 Apr 2019 10:02:00 -0000	[thread overview]
Message-ID: <a2c97024-39d8-6212-06f3-819419d9bc2e@oracle.com> (raw)
In-Reply-To: <71f91c87-d690-89d8-4275-798214c86df4@oracle.com>

.. an additional observation. Over the last couple of days I wondered 
if the amended testcase was really valid, given the non-terminal 
parameter pack, beyond the evidence that all the compilers I have at 
hand accept it. Note anyway, that we - and all the compilers - already 
accept a version of the testcase without the explicit argument and 
deduce the pack as empty:

template<typename ...XE> void
fk (XE..., int);

void
w9 (void)
{
   fk (0);
}

Thus, it seems to me that at least we have a consistency issue, at some 
level. Are we already "inadvertently" implementing P0478R0 or I'm 
missing something else?!?

Paolo.

  reply	other threads:[~2019-04-12  9:49 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-11 15:21 Paolo Carlini
2019-04-12 10:02 ` Paolo Carlini [this message]
2019-04-12 18:46 ` Jason Merrill
2019-04-15 20:36   ` Paolo Carlini
2019-04-18 17:45     ` Jason Merrill

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