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: /*
: Copyright (c) 2025 Giuseppe Roberti.
: All rights reserved.
:
: Redistribution and use in source and binary forms, with or without modification,
: are permitted provided that the following conditions are met:
:
: 1. Redistributions of source code must retain the above copyright notice, this
: list of conditions and the following disclaimer.
:
: 2. Redistributions in binary form must reproduce the above copyright notice,
: this list of conditions and the following disclaimer in the documentation and/or
: other materials provided with the distribution.
:
: 3. Neither the name of the copyright holder nor the names of its contributors
: may be used to endorse or promote products derived from this software without
: specific prior written permission.
:
: THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
: WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
: DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
: ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
: (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
: LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
: ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
: (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
: SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
: */
: #pragma once
:
: #include "clev/err.h"
: #include "clev/iface.h"
:
: namespace clev
: {
:
: template<typename wrap_t>
: struct own : iface<wrap_t>
: {
: using parent = iface<wrap_t>;
:
: using parent::parent;
:
: own(const own& rhs) noexcept
: requires requires(wrap_t* d, const wrap_t s) {
: { iface<wrap_t>::copy(d, s) } -> std::convertible_to<clev::expected<void>>;
: }
: {
: iface<wrap_t>::copy(&(own::v), rhs.v).or_exit();
: }
:
: own& operator=(const own& rhs) noexcept
: requires requires(wrap_t* d, const wrap_t s) {
: { iface<wrap_t>::copy(d, s) } -> std::convertible_to<clev::expected<void>>;
: }
: {
: if (this == &rhs)
: return *this;
:
: if (*this)
: iface<wrap_t>::destroy(own::v).or_exit();
:
: iface<wrap_t>::copy(&(own::v), rhs.v).or_exit();
:
: return *this;
: }
:
: own(const own& rhs)
: requires(!requires(wrap_t* d, const wrap_t s) {
: { iface<wrap_t>::copy(d, s) } -> std ::convertible_to<clev::expected<void>>;
: })
: = delete;
:
: own& operator=(const own&)
: requires(!requires(wrap_t* d, const wrap_t s) {
: { iface<wrap_t>::copy(d, s) } -> std ::convertible_to<clev::expected<void>>;
: })
: = delete;
:
: own(own&& rhs) noexcept
: {
: if (*this)
: own::destroy(own::v).or_exit();
:
: own::v = rhs.v;
:
: rhs.v = own::empty();
: }
:
: own& operator=(own&& rhs) noexcept
: {
0 / 1 : if (this != &rhs)
: {
0 / 1 : if (*this)
0 / 1 : own::destroy(own::v).or_exit();
:
0 / 1 : own::v = rhs.v;
:
0 / 1 : rhs.v = own::empty();
0 / 1 : };
:
0 / 1 : return *this;
: }
:
: ~own()
: {
: if (*this)
: own::destroy(own::v).or_exit();
: }
: };
:
: } // namespace clev
:
: static constexpr bool ownxx_own_is_really_needed_v = true;
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