41 lines
1.1 KiB
C++
41 lines
1.1 KiB
C++
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#pragma once
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#include <memory>
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// ReferenceWrapper was created because std::reference_wrapper
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// wasn't copyable
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// Implementation has been taken from:
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// http://en.cppreference.com/w/cpp/utility/functional/reference_wrapper
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// TODO: once the c++ implementation will have proper implementation
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// this class should be deleted and replaced with std::reference_wrapper
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template <class T>
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class ReferenceWrapper
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{
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public:
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// types
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typedef T type;
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// construct/copy/destroy
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ReferenceWrapper(T &ref) noexcept : _ptr(std::addressof(ref)) {}
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ReferenceWrapper(T &&) = delete;
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ReferenceWrapper(const ReferenceWrapper &) noexcept = default;
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// assignment
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ReferenceWrapper &operator=(const ReferenceWrapper &x) noexcept = default;
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// access
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operator T &() const noexcept { return *_ptr; }
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T &get() const noexcept { return *_ptr; }
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// template <class... ArgTypes>
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// typename std::result_of<T &(ArgTypes &&...)>::type
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// operator()(ArgTypes &&... args) const
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// {
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// return std::invoke(get(), std::forward<ArgTypes>(args)...);
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// }
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private:
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T *_ptr;
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};
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