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Re: [PATCH] Fix the remaining PR c++/24666 blockers (arrays decay to pointers too early)

From: Patrick Palka <patrick at parcs dot ath dot cx>
To: Jason Merrill <jason at redhat dot com>
Cc: Patrick Palka <patrick at parcs dot ath dot cx>, GCC Patches <gcc-patches at gcc dot gnu dot org>
Date: Thu, 21 Jan 2016 16:45:31 -0500 (EST)
Subject: Re: [PATCH] Fix the remaining PR c++/24666 blockers (arrays decay to pointers too early)
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References: <1450979869-5575-1-git-send-email-patrick at parcs dot ath dot cx> <567CACC0 dot 5010705 at redhat dot com> <CA+C-WL8KC-65TFPe27OgYEF6iAACZ-P74OJF0HVBhH58cGZQGA at mail dot gmail dot com> <569D060F dot 6070708 at redhat dot com> <CA+C-WL-A8bhVUWrrVmwoqxkh2prSJbgh1kACBV12kVdfAXW7Gg at mail dot gmail dot com> <569D5360 dot 1010805 at redhat dot com> <CA+C-WL-3+FFgmcYy1iqBuoxEZPka41szfbH535DXW012eHTtpg at mail dot gmail dot com> <alpine dot DEB dot 2 dot 20 dot 9 dot 1601192049020 dot 13332 at idea> <56A126C7 dot 908 at redhat dot com>

On Thu, 21 Jan 2016, Jason Merrill wrote:

On 01/19/2016 10:30 PM, Patrick Palka wrote:

     * g++.dg/template/unify17.C: XFAIL.


Hmm, I'm not comfortable with deliberately regressing this testcase.

  template <typename T>
-void bar (void (T[5])); // { dg-error "array of 'void'" }
+void bar (void (T[5])); // { dg-error "array of 'void'" "" { xfail
*-*-* } }

Can we work it so that T[5] also is un-decayed in the DECL_ARGUMENTS of bar,but decayed in the TYPE_ARG_TYPES?


I think so, I'll try it.


Jason

Follow-Ups:
- Re: [PATCH] Fix the remaining PR c++/24666 blockers (arrays decay to pointers too early)
  - From: Patrick Palka

References:
- Re: [PATCH] Fix the remaining PR c++/24666 blockers (arrays decay to pointers too early)
  - From: Jason Merrill
- Re: [PATCH] Fix the remaining PR c++/24666 blockers (arrays decay to pointers too early)
  - From: Patrick Palka
- Re: [PATCH] Fix the remaining PR c++/24666 blockers (arrays decay to pointers too early)
  - From: Jason Merrill
- Re: [PATCH] Fix the remaining PR c++/24666 blockers (arrays decay to pointers too early)
  - From: Patrick Palka
- Re: [PATCH] Fix the remaining PR c++/24666 blockers (arrays decay to pointers too early)
  - From: Patrick Palka
- Re: [PATCH] Fix the remaining PR c++/24666 blockers (arrays decay to pointers too early)
  - From: Jason Merrill

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