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Re: [C++ Patch] PR 39970

From: Jason Merrill <jason at redhat dot com>
To: Paolo Carlini <paolo dot carlini at oracle dot com>
Cc: gcc-patches at gcc dot gnu dot org
Date: Tue, 24 Apr 2012 19:41:37 -0400
Subject: Re: [C++ Patch] PR 39970
References: <f3cunh6flciqn3boid2ds3hy.1335302024816@email.android.com> <4F9719F7.6090202@oracle.com>

On 04/24/2012 05:24 PM, Paolo Carlini wrote:

Perhaps we aren't checking default arguments unless they're actually
used; a could change that if they aren't dependent.

Your reply reached the mailing list a bit mangled, could you please
clarify?

If the default argument isn't dependent on other template parameters, we can check immediately whether it is a suitable template argument for its parameter, including being a constant expression. That ought to give an appropriate diagnostic for this testcase.

Jason

Follow-Ups:
- Re: [C++ Patch] PR 39970
  - From: Paolo Carlini
- Re: [C++ Patch] PR 39970
  - From: Paolo Carlini

References:
- Re: [C++ Patch] PR 39970
  - From: Paolo Carlini

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