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[v3 PATCH] Implement P0032R3, Homogeneous interface for variant, any and optional, for the parts concerning any and 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, 14 Jul 2016 02:14:31 +0300
Subject: [v3 PATCH] Implement P0032R3, Homogeneous interface for variant, any and optional, for the parts concerning any and optional.
Authentication-results: sourceware.org; auth=none

Tested on Linux-x64.

2016-07-14  Ville Voutilainen  <ville.voutilainen@gmail.com>

    Implement P0032R3, Homogeneous interface for variant, any and optional,
    for the parts concerning any and optional.
    * include/std/any (_Storage()): Make constexpr and have it
    initialize _M_ptr.
    (any()): Make constexpr.
    (any(const any&)): Adjust.
    (any(any&&)): Likewise.
    (__any_constructible_t): New.
    (any(_ValueType&&)): Constrain.
    (any(in_place_type_t<_Tp>, _Args&&...)): New.
    (any(in_place_type_t<_Tp>, initializer_list<_Up>, _Args&&...)):
    Likewise.
    (~any()): Adjust.
    (operator=(const any&)): Likewise.
    (operator=(any&&)): Likewise.
    (operator=(_ValueType&&)): Constrain.
    (emplace(_Args&&...)): New.
    (emplace(initializer_list<_Up>, _Args&&...)): Likewise.
    (clear()): Remove.
    (reset()): New.
    (swap(any&)): Adjust.
    (empty()): Remove.
    (has_value()): New.
    (type()): Adjust.
    (_Manager_internal::_S_create(_Storage&, _Args&&...)): New.
    (_Manager_external::_S_create(_Storage&, _Args&&...)): Likewise.
    (make_any(_Args&&...)): Likewise.
    (make_any(initializer_list<_Up>, _Args&&...)): Likewise.
    * include/std/optional (in_place_t, in_place): Remove.
    (bad_optional_access): Add a comment referring to LEWG 72.
    (emplace(_Args&&...)): Constrain.
    (has_value()): New.
    (reset()): Likewise.
    (make_optional(_Args&&...)): Likewise.
    (make_optional(initializer_list<_Up>, _Args&&...)): Likewise.
    * include/std/utility (in_place_tag): New.
    (__in_place, __in_place_type, __in_place_index): Likewise.
    (in_place_t, in_place_type_t, in_place_index_t): Likewise.
    (in_place(__in_place*)): Likewise.
    (in_place(__in_place_type<_Tp>*)): Likewise.
    (in_place(__in_place_index<_Idx>*)): Likewise.
    * testsuite/20_util/any/assign/1.cc: Adjust.
    * testsuite/20_util/any/assign/emplace.cc: New.
    * testsuite/20_util/any/assign/self.cc: Adjust.
    * testsuite/20_util/any/cons/1.cc: Likewise.
    * testsuite/20_util/any/cons/in_place.cc: New.
    * testsuite/20_util/any/make_any.cc: Likewise.
    * testsuite/20_util/any/misc/any_cast_neg.cc: Adjust.
    * testsuite/20_util/any/misc/swap.cc: Likewise.
    * testsuite/20_util/any/modifiers/1.cc: Likewise.
    * testsuite/20_util/any/requirements.cc: New.
    * testsuite/20_util/in_place/requirements.cc: Likewise.
    * testsuite/20_util/optional/constexpr/in_place.cc: Adjust.
    * testsuite/20_util/optional/in_place.cc: Likewise.
    * testsuite/20_util/optional/make_optional.cc: Add tests for
    the new overloads of make_optional.

Attachment: P0032R3.diff.gz
Description: GNU Zip compressed data

Follow-Ups:
- Re: [v3 PATCH] Implement P0032R3, Homogeneous interface for variant, any and optional, for the parts concerning any and optional.
  - From: Ville Voutilainen

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