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[v3 PATCH] Implement LWG 2806, Base class of bad_optional_access.

From: Ville Voutilainen <ville dot voutilainen at gmail dot com>
To: "libstdc++" <libstdc++ at gcc dot gnu dot org>, "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
Date: Sun, 12 Mar 2017 13:47:05 +0200
Subject: [v3 PATCH] Implement LWG 2806, Base class of bad_optional_access.
Authentication-results: sourceware.org; auth=none

Tested on Linux-x64.

2017-03-12  Ville Voutilainen  <ville.voutilainen@gmail.com>

    Implement LWG 2806, Base class of bad_optional_access.
    * include/std/optional (bad_optional_access):
    Derive from std::exception.
    (bad_optional_access::bad_optional_access): Adjust.
    (bad_optional_access::what): New.
    (__throw_bad_optional_access(const char*)):
    Remove the parameter and adjust calls.
    * testsuite/20_util/optional/cons/value_neg.cc: Adjust.
    * testsuite/20_util/optional/typedefs.cc: Likewise.

Attachment: lwg2806.diff
Description: Text document

Follow-Ups:
- Re: [v3 PATCH] Implement LWG 2806, Base class of bad_optional_access.
  - From: Jonathan Wakely

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