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44 lines
1.1 KiB
C++
44 lines
1.1 KiB
C++
// Copyright Toru Niina 2017.
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// Distributed under the MIT License.
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#ifndef TOML11_STORAGE_HPP
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#define TOML11_STORAGE_HPP
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#include "utility.hpp"
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namespace toml
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{
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namespace detail
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{
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// this contains pointer and deep-copy the content if copied.
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// to avoid recursive pointer.
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template<typename T>
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struct storage
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{
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using value_type = T;
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explicit storage(value_type const& v): ptr(toml::make_unique<T>(v)) {}
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explicit storage(value_type&& v): ptr(toml::make_unique<T>(std::move(v))) {}
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~storage() = default;
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storage(const storage& rhs): ptr(toml::make_unique<T>(*rhs.ptr)) {}
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storage& operator=(const storage& rhs)
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{
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this->ptr = toml::make_unique<T>(*rhs.ptr);
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return *this;
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}
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storage(storage&&) = default;
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storage& operator=(storage&&) = default;
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bool is_ok() const noexcept {return static_cast<bool>(ptr);}
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value_type& value() & noexcept {return *ptr;}
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value_type const& value() const& noexcept {return *ptr;}
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value_type&& value() && noexcept {return std::move(*ptr);}
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private:
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std::unique_ptr<value_type> ptr;
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};
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} // detail
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} // toml
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#endif// TOML11_STORAGE_HPP
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