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- #ifndef __GBLIBCPP_BITS_FWD_FUNCTIONAL__
- #define __GBLIBCPP_BITS_FWD_FUNCTIONAL__
- #include <cstddef>
- namespace std {
- template <typename T>
- class reference_wrapper;
- template <typename>
- class function;
- template <typename Ret, typename... Args>
- bool operator==(const std::function<Ret(Args...)>& func, std::nullptr_t) noexcept;
- template <typename Ret, typename... Args>
- void swap(std::function<Ret(Args...)>& lhs, std::function<Ret(Args...)>& rhs) noexcept;
- template <typename T>
- constexpr std::reference_wrapper<T> ref(T& t) noexcept;
- template <typename T>
- constexpr std::reference_wrapper<T>
- ref(std::reference_wrapper<T> t) noexcept;
- template <typename T>
- void ref(const T&&) = delete;
- template <typename T>
- constexpr std::reference_wrapper<const T> cref(const T& t) noexcept;
- template <typename T>
- constexpr std::reference_wrapper<const T>
- cref(std::reference_wrapper<T> t) noexcept;
- template <typename T>
- void cref(const T&&) = delete;
- } // namespace std
- #endif
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