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[v3 PATCH] Implement std::optional.

From: Ville Voutilainen <ville dot voutilainen at gmail dot com>
To: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>, "libstdc++" <libstdc++ at gcc dot gnu dot org>
Date: Thu, 7 Jul 2016 13:00:59 +0300
Subject: [v3 PATCH] Implement std::optional.
Authentication-results: sourceware.org; auth=none

Tested on Linux-x64.

2016-07-07  Ville Voutilainen  <ville.voutilainen@gmail.com>

    Implement std::optional.
    * include/Makefile.am: Add optional to exported headers.
    * include/Makefile.in: Likewise.
    * include/std/optional: New.
    * testsuite/20_util/optional/typedefs.cc: Likewise.
    * testsuite/20_util/optional/relops/2.cc: Likewise.
    * testsuite/20_util/optional/relops/3.cc: Likewise.
    * testsuite/20_util/optional/relops/4.cc: Likewise.
    * testsuite/20_util/optional/relops/5.cc: Likewise.
    * testsuite/20_util/optional/relops/1.cc: Likewise.
    * testsuite/20_util/optional/relops/6.cc: Likewise.
    * testsuite/20_util/optional/nullopt.cc: Likewise.
    * testsuite/20_util/optional/in_place.cc: Likewise.
    * testsuite/20_util/optional/make_optional.cc: Likewise.
    * testsuite/20_util/optional/assignment/2.cc: Likewise.
    * testsuite/20_util/optional/assignment/3.cc: Likewise.
    * testsuite/20_util/optional/assignment/4.cc: Likewise.
    * testsuite/20_util/optional/assignment/5.cc: Likewise.
    * testsuite/20_util/optional/assignment/1.cc: Likewise.
    * testsuite/20_util/optional/assignment/6.cc: Likewise.
    * testsuite/20_util/optional/cons/value_neg.cc: Likewise.
    * testsuite/20_util/optional/cons/default.cc: Likewise.
    * testsuite/20_util/optional/cons/move.cc: Likewise.
    * testsuite/20_util/optional/cons/value.cc: Likewise.
    * testsuite/20_util/optional/cons/copy.cc: Likewise.
    * testsuite/20_util/optional/requirements.cc: Likewise.
    * testsuite/20_util/optional/observers/2.cc: Likewise.
    * testsuite/20_util/optional/observers/3.cc: Likewise.
    * testsuite/20_util/optional/observers/4.cc: Likewise.
    * testsuite/20_util/optional/observers/5.cc: Likewise.
    * testsuite/20_util/optional/observers/1.cc: Likewise.
    * testsuite/20_util/optional/constexpr/relops/2.cc: Likewise.
    * testsuite/20_util/optional/constexpr/relops/3.cc: Likewise.
    * testsuite/20_util/optional/constexpr/relops/4.cc: Likewise.
    * testsuite/20_util/optional/constexpr/relops/5.cc: Likewise.
    * testsuite/20_util/optional/constexpr/relops/1.cc: Likewise.
    * testsuite/20_util/optional/constexpr/relops/6.cc: Likewise.
    * testsuite/20_util/optional/constexpr/nullopt.cc: Likewise.
    * testsuite/20_util/optional/constexpr/in_place.cc: Likewise.
    * testsuite/20_util/optional/constexpr/make_optional.cc: Likewise.
    * testsuite/20_util/optional/constexpr/cons/default.cc: Likewise.
    * testsuite/20_util/optional/constexpr/cons/value.cc: Likewise.
    * testsuite/20_util/optional/constexpr/observers/2.cc: Likewise.
    * testsuite/20_util/optional/constexpr/observers/3.cc: Likewise.
    * testsuite/20_util/optional/constexpr/observers/4.cc: Likewise.
    * testsuite/20_util/optional/constexpr/observers/5.cc: Likewise.
    * testsuite/20_util/optional/constexpr/observers/1.cc: Likewise.
    * testsuite/20_util/optional/swap/1.cc: Likewise.

Attachment: std_optional.diff.gz
Description: GNU Zip compressed data

Follow-Ups:
- Re: [v3 PATCH] Implement std::optional.
  - From: Jonathan Wakely

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