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//===------------------------ functional ----------------------------------===//
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// The LLVM Compiler Infrastructure
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_FUNCTIONAL
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#define _LIBCPP_FUNCTIONAL
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template <class Arg, class Result>
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typedef Arg argument_type;
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typedef Result result_type;
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template <class Arg1, class Arg2, class Result>
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struct binary_function
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typedef Arg1 first_argument_type;
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typedef Arg2 second_argument_type;
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typedef Result result_type;
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class reference_wrapper
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: public unary_function<T1, R> // if wrapping a unary functor
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: public binary_function<T1, T2, R> // if wraping a binary functor
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typedef see below result_type; // Not always defined
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// construct/copy/destroy
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reference_wrapper(T&) noexcept;
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reference_wrapper(T&&) = delete; // do not bind to temps
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reference_wrapper(const reference_wrapper<T>& x) noexcept;
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reference_wrapper& operator=(const reference_wrapper<T>& x) noexcept;
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operator T& () const noexcept;
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T& get() const noexcept;
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template <class... ArgTypes>
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typename result_of<T(ArgTypes...)>::type
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operator() (ArgTypes&&...) const;
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template <class T> reference_wrapper<T> ref(T& t) noexcept;
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template <class T> void ref(const T&& t) = delete;
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template <class T> reference_wrapper<T> ref(reference_wrapper<T>t) noexcept;
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template <class T> reference_wrapper<const T> cref(const T& t) noexcept;
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template <class T> void cref(const T&& t) = delete;
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template <class T> reference_wrapper<const T> cref(reference_wrapper<T> t) noexcept;
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struct plus : binary_function<T, T, T>
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T operator()(const T& x, const T& y) const;
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struct minus : binary_function<T, T, T>
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T operator()(const T& x, const T& y) const;
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struct multiplies : binary_function<T, T, T>
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T operator()(const T& x, const T& y) const;
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struct divides : binary_function<T, T, T>
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T operator()(const T& x, const T& y) const;
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struct modulus : binary_function<T, T, T>
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T operator()(const T& x, const T& y) const;
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struct negate : unary_function<T, T>
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T operator()(const T& x) const;
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struct equal_to : binary_function<T, T, bool>
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bool operator()(const T& x, const T& y) const;
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struct not_equal_to : binary_function<T, T, bool>
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bool operator()(const T& x, const T& y) const;
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struct greater : binary_function<T, T, bool>
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bool operator()(const T& x, const T& y) const;
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struct less : binary_function<T, T, bool>
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bool operator()(const T& x, const T& y) const;
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struct greater_equal : binary_function<T, T, bool>
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bool operator()(const T& x, const T& y) const;
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struct less_equal : binary_function<T, T, bool>
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bool operator()(const T& x, const T& y) const;
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struct logical_and : binary_function<T, T, bool>
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bool operator()(const T& x, const T& y) const;
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struct logical_or : binary_function<T, T, bool>
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bool operator()(const T& x, const T& y) const;
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struct logical_not : unary_function<T, bool>
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bool operator()(const T& x) const;
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template <class Predicate>
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: public unary_function<typename Predicate::argument_type, bool>
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explicit unary_negate(const Predicate& pred);
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bool operator()(const typename Predicate::argument_type& x) const;
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template <class Predicate> unary_negate<Predicate> not1(const Predicate& pred);
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template <class Predicate>
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: public binary_function<typename Predicate::first_argument_type,
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typename Predicate::second_argument_type,
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explicit binary_negate(const Predicate& pred);
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bool operator()(const typename Predicate::first_argument_type& x,
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const typename Predicate::second_argument_type& y) const;
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template <class Predicate> binary_negate<Predicate> not2(const Predicate& pred);
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template<class T> struct is_bind_expression;
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template<class T> struct is_placeholder;
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template<class Fn, class... BoundArgs>
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unspecified bind(Fn&&, BoundArgs&&...);
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template<class R, class Fn, class... BoundArgs>
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unspecified bind(Fn&&, BoundArgs&&...);
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namespace placeholders {
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// M is the implementation-defined number of placeholders
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extern unspecified _1;
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extern unspecified _2;
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extern unspecified _Mp;
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template <class Operation>
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: public unary_function<typename Operation::second_argument_type,
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typename Operation::result_type>
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typename Operation::first_argument_type value;
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binder1st(const Operation& x, const typename Operation::first_argument_type y);
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typename Operation::result_type operator()( typename Operation::second_argument_type& x) const;
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typename Operation::result_type operator()(const typename Operation::second_argument_type& x) const;
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template <class Operation, class T>
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binder1st<Operation> bind1st(const Operation& op, const T& x);
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template <class Operation>
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: public unary_function<typename Operation::first_argument_type,
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typename Operation::result_type>
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typename Operation::second_argument_type value;
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binder2nd(const Operation& x, const typename Operation::second_argument_type y);
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typename Operation::result_type operator()( typename Operation::first_argument_type& x) const;
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typename Operation::result_type operator()(const typename Operation::first_argument_type& x) const;
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template <class Operation, class T>
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binder2nd<Operation> bind2nd(const Operation& op, const T& x);
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template <class Arg, class Result>
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class pointer_to_unary_function : public unary_function<Arg, Result>
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explicit pointer_to_unary_function(Result (*f)(Arg));
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Result operator()(Arg x) const;
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template <class Arg, class Result>
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pointer_to_unary_function<Arg,Result> ptr_fun(Result (*f)(Arg));
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template <class Arg1, class Arg2, class Result>
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class pointer_to_binary_function : public binary_function<Arg1, Arg2, Result>
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explicit pointer_to_binary_function(Result (*f)(Arg1, Arg2));
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Result operator()(Arg1 x, Arg2 y) const;
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template <class Arg1, class Arg2, class Result>
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pointer_to_binary_function<Arg1,Arg2,Result> ptr_fun(Result (*f)(Arg1,Arg2));
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template<class S, class T>
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class mem_fun_t : public unary_function<T*, S>
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explicit mem_fun_t(S (T::*p)());
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S operator()(T* p) const;
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template<class S, class T, class A>
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class mem_fun1_t : public binary_function<T*, A, S>
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explicit mem_fun1_t(S (T::*p)(A));
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S operator()(T* p, A x) const;
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template<class S, class T> mem_fun_t<S,T> mem_fun(S (T::*f)());
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template<class S, class T, class A> mem_fun1_t<S,T,A> mem_fun(S (T::*f)(A));
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template<class S, class T>
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class mem_fun_ref_t : public unary_function<T, S>
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explicit mem_fun_ref_t(S (T::*p)());
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S operator()(T& p) const;
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template<class S, class T, class A>
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class mem_fun1_ref_t : public binary_function<T, A, S>
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explicit mem_fun1_ref_t(S (T::*p)(A));
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S operator()(T& p, A x) const;
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template<class S, class T> mem_fun_ref_t<S,T> mem_fun_ref(S (T::*f)());
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template<class S, class T, class A> mem_fun1_ref_t<S,T,A> mem_fun_ref(S (T::*f)(A));
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template <class S, class T>
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class const_mem_fun_t : public unary_function<const T*, S>
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explicit const_mem_fun_t(S (T::*p)() const);
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S operator()(const T* p) const;
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template <class S, class T, class A>
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class const_mem_fun1_t : public binary_function<const T*, A, S>
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explicit const_mem_fun1_t(S (T::*p)(A) const);
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S operator()(const T* p, A x) const;
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template <class S, class T> const_mem_fun_t<S,T> mem_fun(S (T::*f)() const);
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template <class S, class T, class A> const_mem_fun1_t<S,T,A> mem_fun(S (T::*f)(A) const);
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template <class S, class T>
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class const_mem_fun_ref_t : public unary_function<T, S>
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explicit const_mem_fun_ref_t(S (T::*p)() const);
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S operator()(const T& p) const;
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template <class S, class T, class A>
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class const_mem_fun1_ref_t : public binary_function<T, A, S>
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explicit const_mem_fun1_ref_t(S (T::*p)(A) const);
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S operator()(const T& p, A x) const;
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template <class S, class T> const_mem_fun_ref_t<S,T> mem_fun_ref(S (T::*f)() const);
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template <class S, class T, class A> const_mem_fun1_ref_t<S,T,A> mem_fun_ref(S (T::*f)(A) const);
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template<class R, class T> unspecified mem_fn(R T::*);
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template<class R, class T, class... Args> unspecified mem_fn(R (T::*)(Args...));
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template<class R, class T, class... Args> unspecified mem_fn(R (T::*)(Args...) const);
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template<class R, class T, class... Args> unspecified mem_fn(R (T::*)(Args...) volatile);
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template<class R, class T, class... Args> unspecified mem_fn(R (T::*)(Args...) const volatile);
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template<class R, class T, class... Args> unspecified mem_fn(R (T::*)(Args...) &);
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template<class R, class T, class... Args> unspecified mem_fn(R (T::*)(Args...) const &);
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template<class R, class T, class... Args> unspecified mem_fn(R (T::*)(Args...) volatile &);
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template<class R, class T, class... Args> unspecified mem_fn(R (T::*)(Args...) const volatile &);
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template<class R, class T, class... Args> unspecified mem_fn(R (T::*)(Args...) &&);
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template<class R, class T, class... Args> unspecified mem_fn(R (T::*)(Args...) const &&);
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template<class R, class T, class... Args> unspecified mem_fn(R (T::*)(Args...) volatile &&);
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template<class R, class T, class... Args> unspecified mem_fn(R (T::*)(Args...) const volatile &&);
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class bad_function_call
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template<class> class function; // undefined
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template<class R, class... ArgTypes>
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class function<R(ArgTypes...)>
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: public unary_function<T1, R> // iff sizeof...(ArgTypes) == 1 and
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// ArgTypes contains T1
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: public binary_function<T1, T2, R> // iff sizeof...(ArgTypes) == 2 and
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// ArgTypes contains T1 and T2
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typedef R result_type;
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// construct/copy/destroy:
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function(nullptr_t) noexcept;
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function(const function&);
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function(function&&) noexcept;
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template<Allocator Alloc>
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function(allocator_arg_t, const Alloc&) noexcept;
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template<Allocator Alloc>
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function(allocator_arg_t, const Alloc&, nullptr_t) noexcept;
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template<Allocator Alloc>
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function(allocator_arg_t, const Alloc&, const function&);
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template<Allocator Alloc>
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function(allocator_arg_t, const Alloc&, function&&);
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template<class F, Allocator Alloc>
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function(allocator_arg_t, const Alloc&, F);
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function& operator=(const function&);
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function& operator=(function&&) noexcept;
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function& operator=(nullptr_t) noexcept;
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function& operator=(F&&);
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function& operator=(reference_wrapper<F>) noexcept;
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// function modifiers:
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void swap(function&) noexcept;
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template<class F, class Alloc>
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void assign(F&&, const Alloc&);
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// function capacity:
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explicit operator bool() const noexcept;
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// function invocation:
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R operator()(ArgTypes...) const;
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// function target access:
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const std::type_info& target_type() const noexcept;
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template <typename T> T* target() noexcept;
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template <typename T> const T* target() const noexcept;
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// Null pointer comparisons:
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template <class R, class ... ArgTypes>
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bool operator==(const function<R(ArgTypes...)>&, nullptr_t) noexcept;
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template <class R, class ... ArgTypes>
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bool operator==(nullptr_t, const function<R(ArgTypes...)>&) noexcept;
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template <class R, class ... ArgTypes>
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bool operator!=(const function<R(ArgTypes...)>&, nullptr_t) noexcept;
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template <class R, class ... ArgTypes>
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bool operator!=(nullptr_t, const function<R(ArgTypes...)>&) noexcept;
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// specialized algorithms:
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template <class R, class ... ArgTypes>
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void swap(function<R(ArgTypes...)>&, function<R(ArgTypes...)>&) noexcept;
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template <class T> struct hash;
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template <> struct hash<bool>;
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template <> struct hash<char>;
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template <> struct hash<signed char>;
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template <> struct hash<unsigned char>;
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template <> struct hash<char16_t>;
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template <> struct hash<char32_t>;
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template <> struct hash<wchar_t>;
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template <> struct hash<short>;
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template <> struct hash<unsigned short>;
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template <> struct hash<int>;
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template <> struct hash<unsigned int>;
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template <> struct hash<long>;
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template <> struct hash<long long>;
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template <> struct hash<unsigned long>;
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template <> struct hash<unsigned long long>;
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template <> struct hash<float>;
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template <> struct hash<double>;
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template <> struct hash<long double>;
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template<class T> struct hash<T*>;
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POLICY: For non-variadic implementations, the number of arguments is limited
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to 3. It is hoped that the need for non-variadic implementations
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#include <type_traits>
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#include <__functional_base>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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#pragma GCC system_header
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_LIBCPP_BEGIN_NAMESPACE_STD
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struct _LIBCPP_TYPE_VIS plus : binary_function<_Tp, _Tp, _Tp>
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_LIBCPP_INLINE_VISIBILITY _Tp operator()(const _Tp& __x, const _Tp& __y) const
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struct _LIBCPP_TYPE_VIS minus : binary_function<_Tp, _Tp, _Tp>
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_LIBCPP_INLINE_VISIBILITY _Tp operator()(const _Tp& __x, const _Tp& __y) const
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struct _LIBCPP_TYPE_VIS multiplies : binary_function<_Tp, _Tp, _Tp>
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_LIBCPP_INLINE_VISIBILITY _Tp operator()(const _Tp& __x, const _Tp& __y) const
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struct _LIBCPP_TYPE_VIS divides : binary_function<_Tp, _Tp, _Tp>
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_LIBCPP_INLINE_VISIBILITY _Tp operator()(const _Tp& __x, const _Tp& __y) const
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struct _LIBCPP_TYPE_VIS modulus : binary_function<_Tp, _Tp, _Tp>
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_LIBCPP_INLINE_VISIBILITY _Tp operator()(const _Tp& __x, const _Tp& __y) const
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struct _LIBCPP_TYPE_VIS negate : unary_function<_Tp, _Tp>
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_LIBCPP_INLINE_VISIBILITY _Tp operator()(const _Tp& __x) const
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struct _LIBCPP_TYPE_VIS equal_to : binary_function<_Tp, _Tp, bool>
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_LIBCPP_INLINE_VISIBILITY bool operator()(const _Tp& __x, const _Tp& __y) const
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struct _LIBCPP_TYPE_VIS not_equal_to : binary_function<_Tp, _Tp, bool>
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_LIBCPP_INLINE_VISIBILITY bool operator()(const _Tp& __x, const _Tp& __y) const
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struct _LIBCPP_TYPE_VIS greater : binary_function<_Tp, _Tp, bool>
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_LIBCPP_INLINE_VISIBILITY bool operator()(const _Tp& __x, const _Tp& __y) const
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// less in <__functional_base>
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struct _LIBCPP_TYPE_VIS greater_equal : binary_function<_Tp, _Tp, bool>
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_LIBCPP_INLINE_VISIBILITY bool operator()(const _Tp& __x, const _Tp& __y) const
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struct _LIBCPP_TYPE_VIS less_equal : binary_function<_Tp, _Tp, bool>
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_LIBCPP_INLINE_VISIBILITY bool operator()(const _Tp& __x, const _Tp& __y) const
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struct _LIBCPP_TYPE_VIS logical_and : binary_function<_Tp, _Tp, bool>
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_LIBCPP_INLINE_VISIBILITY bool operator()(const _Tp& __x, const _Tp& __y) const
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struct _LIBCPP_TYPE_VIS logical_or : binary_function<_Tp, _Tp, bool>
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_LIBCPP_INLINE_VISIBILITY bool operator()(const _Tp& __x, const _Tp& __y) const
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struct _LIBCPP_TYPE_VIS logical_not : unary_function<_Tp, bool>
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_LIBCPP_INLINE_VISIBILITY bool operator()(const _Tp& __x) const
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struct _LIBCPP_TYPE_VIS bit_and : binary_function<_Tp, _Tp, _Tp>
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_LIBCPP_INLINE_VISIBILITY _Tp operator()(const _Tp& __x, const _Tp& __y) const
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struct _LIBCPP_TYPE_VIS bit_or : binary_function<_Tp, _Tp, _Tp>
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_LIBCPP_INLINE_VISIBILITY _Tp operator()(const _Tp& __x, const _Tp& __y) const
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struct _LIBCPP_TYPE_VIS bit_xor : binary_function<_Tp, _Tp, _Tp>
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_LIBCPP_INLINE_VISIBILITY _Tp operator()(const _Tp& __x, const _Tp& __y) const
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template <class _Predicate>
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class _LIBCPP_TYPE_VIS unary_negate
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: public unary_function<typename _Predicate::argument_type, bool>
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_LIBCPP_INLINE_VISIBILITY explicit unary_negate(const _Predicate& __pred)
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_LIBCPP_INLINE_VISIBILITY bool operator()(const typename _Predicate::argument_type& __x) const
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{return !__pred_(__x);}
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template <class _Predicate>
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inline _LIBCPP_INLINE_VISIBILITY
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unary_negate<_Predicate>
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not1(const _Predicate& __pred) {return unary_negate<_Predicate>(__pred);}
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template <class _Predicate>
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class _LIBCPP_TYPE_VIS binary_negate
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: public binary_function<typename _Predicate::first_argument_type,
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typename _Predicate::second_argument_type,
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_LIBCPP_INLINE_VISIBILITY explicit binary_negate(const _Predicate& __pred)
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_LIBCPP_INLINE_VISIBILITY bool operator()(const typename _Predicate::first_argument_type& __x,
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const typename _Predicate::second_argument_type& __y) const
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{return !__pred_(__x, __y);}
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template <class _Predicate>
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inline _LIBCPP_INLINE_VISIBILITY
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binary_negate<_Predicate>
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not2(const _Predicate& __pred) {return binary_negate<_Predicate>(__pred);}
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template <class __Operation>
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class _LIBCPP_TYPE_VIS binder1st
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: public unary_function<typename __Operation::second_argument_type,
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typename __Operation::result_type>
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typename __Operation::first_argument_type value;
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_LIBCPP_INLINE_VISIBILITY binder1st(const __Operation& __x,
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const typename __Operation::first_argument_type __y)
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: op(__x), value(__y) {}
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_LIBCPP_INLINE_VISIBILITY typename __Operation::result_type operator()
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(typename __Operation::second_argument_type& __x) const
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{return op(value, __x);}
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_LIBCPP_INLINE_VISIBILITY typename __Operation::result_type operator()
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(const typename __Operation::second_argument_type& __x) const
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{return op(value, __x);}
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template <class __Operation, class _Tp>
655
inline _LIBCPP_INLINE_VISIBILITY
656
binder1st<__Operation>
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bind1st(const __Operation& __op, const _Tp& __x)
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{return binder1st<__Operation>(__op, __x);}
660
template <class __Operation>
661
class _LIBCPP_TYPE_VIS binder2nd
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: public unary_function<typename __Operation::first_argument_type,
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typename __Operation::result_type>
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typename __Operation::second_argument_type value;
669
_LIBCPP_INLINE_VISIBILITY
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binder2nd(const __Operation& __x, const typename __Operation::second_argument_type __y)
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: op(__x), value(__y) {}
672
_LIBCPP_INLINE_VISIBILITY typename __Operation::result_type operator()
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( typename __Operation::first_argument_type& __x) const
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{return op(__x, value);}
675
_LIBCPP_INLINE_VISIBILITY typename __Operation::result_type operator()
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(const typename __Operation::first_argument_type& __x) const
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{return op(__x, value);}
680
template <class __Operation, class _Tp>
681
inline _LIBCPP_INLINE_VISIBILITY
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binder2nd<__Operation>
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bind2nd(const __Operation& __op, const _Tp& __x)
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{return binder2nd<__Operation>(__op, __x);}
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template <class _Arg, class _Result>
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class _LIBCPP_TYPE_VIS pointer_to_unary_function
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: public unary_function<_Arg, _Result>
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_Result (*__f_)(_Arg);
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_LIBCPP_INLINE_VISIBILITY explicit pointer_to_unary_function(_Result (*__f)(_Arg))
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_LIBCPP_INLINE_VISIBILITY _Result operator()(_Arg __x) const
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template <class _Arg, class _Result>
699
inline _LIBCPP_INLINE_VISIBILITY
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pointer_to_unary_function<_Arg,_Result>
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ptr_fun(_Result (*__f)(_Arg))
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{return pointer_to_unary_function<_Arg,_Result>(__f);}
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template <class _Arg1, class _Arg2, class _Result>
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class _LIBCPP_TYPE_VIS pointer_to_binary_function
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: public binary_function<_Arg1, _Arg2, _Result>
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_Result (*__f_)(_Arg1, _Arg2);
710
_LIBCPP_INLINE_VISIBILITY explicit pointer_to_binary_function(_Result (*__f)(_Arg1, _Arg2))
712
_LIBCPP_INLINE_VISIBILITY _Result operator()(_Arg1 __x, _Arg2 __y) const
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{return __f_(__x, __y);}
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template <class _Arg1, class _Arg2, class _Result>
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inline _LIBCPP_INLINE_VISIBILITY
718
pointer_to_binary_function<_Arg1,_Arg2,_Result>
719
ptr_fun(_Result (*__f)(_Arg1,_Arg2))
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{return pointer_to_binary_function<_Arg1,_Arg2,_Result>(__f);}
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template<class _Sp, class _Tp>
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class _LIBCPP_TYPE_VIS mem_fun_t : public unary_function<_Tp*, _Sp>
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_LIBCPP_INLINE_VISIBILITY explicit mem_fun_t(_Sp (_Tp::*__p)())
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_LIBCPP_INLINE_VISIBILITY _Sp operator()(_Tp* __p) const
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{return (__p->*__p_)();}
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template<class _Sp, class _Tp, class _Ap>
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class _LIBCPP_TYPE_VIS mem_fun1_t : public binary_function<_Tp*, _Ap, _Sp>
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_Sp (_Tp::*__p_)(_Ap);
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_LIBCPP_INLINE_VISIBILITY explicit mem_fun1_t(_Sp (_Tp::*__p)(_Ap))
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_LIBCPP_INLINE_VISIBILITY _Sp operator()(_Tp* __p, _Ap __x) const
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{return (__p->*__p_)(__x);}
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template<class _Sp, class _Tp>
745
inline _LIBCPP_INLINE_VISIBILITY
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mem_fun(_Sp (_Tp::*__f)())
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{return mem_fun_t<_Sp,_Tp>(__f);}
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template<class _Sp, class _Tp, class _Ap>
751
inline _LIBCPP_INLINE_VISIBILITY
752
mem_fun1_t<_Sp,_Tp,_Ap>
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mem_fun(_Sp (_Tp::*__f)(_Ap))
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{return mem_fun1_t<_Sp,_Tp,_Ap>(__f);}
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template<class _Sp, class _Tp>
757
class _LIBCPP_TYPE_VIS mem_fun_ref_t : public unary_function<_Tp, _Sp>
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_LIBCPP_INLINE_VISIBILITY explicit mem_fun_ref_t(_Sp (_Tp::*__p)())
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_LIBCPP_INLINE_VISIBILITY _Sp operator()(_Tp& __p) const
764
{return (__p.*__p_)();}
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template<class _Sp, class _Tp, class _Ap>
768
class _LIBCPP_TYPE_VIS mem_fun1_ref_t : public binary_function<_Tp, _Ap, _Sp>
770
_Sp (_Tp::*__p_)(_Ap);
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_LIBCPP_INLINE_VISIBILITY explicit mem_fun1_ref_t(_Sp (_Tp::*__p)(_Ap))
774
_LIBCPP_INLINE_VISIBILITY _Sp operator()(_Tp& __p, _Ap __x) const
775
{return (__p.*__p_)(__x);}
778
template<class _Sp, class _Tp>
779
inline _LIBCPP_INLINE_VISIBILITY
780
mem_fun_ref_t<_Sp,_Tp>
781
mem_fun_ref(_Sp (_Tp::*__f)())
782
{return mem_fun_ref_t<_Sp,_Tp>(__f);}
784
template<class _Sp, class _Tp, class _Ap>
785
inline _LIBCPP_INLINE_VISIBILITY
786
mem_fun1_ref_t<_Sp,_Tp,_Ap>
787
mem_fun_ref(_Sp (_Tp::*__f)(_Ap))
788
{return mem_fun1_ref_t<_Sp,_Tp,_Ap>(__f);}
790
template <class _Sp, class _Tp>
791
class _LIBCPP_TYPE_VIS const_mem_fun_t : public unary_function<const _Tp*, _Sp>
793
_Sp (_Tp::*__p_)() const;
795
_LIBCPP_INLINE_VISIBILITY explicit const_mem_fun_t(_Sp (_Tp::*__p)() const)
797
_LIBCPP_INLINE_VISIBILITY _Sp operator()(const _Tp* __p) const
798
{return (__p->*__p_)();}
801
template <class _Sp, class _Tp, class _Ap>
802
class _LIBCPP_TYPE_VIS const_mem_fun1_t : public binary_function<const _Tp*, _Ap, _Sp>
804
_Sp (_Tp::*__p_)(_Ap) const;
806
_LIBCPP_INLINE_VISIBILITY explicit const_mem_fun1_t(_Sp (_Tp::*__p)(_Ap) const)
808
_LIBCPP_INLINE_VISIBILITY _Sp operator()(const _Tp* __p, _Ap __x) const
809
{return (__p->*__p_)(__x);}
812
template <class _Sp, class _Tp>
813
inline _LIBCPP_INLINE_VISIBILITY
814
const_mem_fun_t<_Sp,_Tp>
815
mem_fun(_Sp (_Tp::*__f)() const)
816
{return const_mem_fun_t<_Sp,_Tp>(__f);}
818
template <class _Sp, class _Tp, class _Ap>
819
inline _LIBCPP_INLINE_VISIBILITY
820
const_mem_fun1_t<_Sp,_Tp,_Ap>
821
mem_fun(_Sp (_Tp::*__f)(_Ap) const)
822
{return const_mem_fun1_t<_Sp,_Tp,_Ap>(__f);}
824
template <class _Sp, class _Tp>
825
class _LIBCPP_TYPE_VIS const_mem_fun_ref_t : public unary_function<_Tp, _Sp>
827
_Sp (_Tp::*__p_)() const;
829
_LIBCPP_INLINE_VISIBILITY explicit const_mem_fun_ref_t(_Sp (_Tp::*__p)() const)
831
_LIBCPP_INLINE_VISIBILITY _Sp operator()(const _Tp& __p) const
832
{return (__p.*__p_)();}
835
template <class _Sp, class _Tp, class _Ap>
836
class _LIBCPP_TYPE_VIS const_mem_fun1_ref_t
837
: public binary_function<_Tp, _Ap, _Sp>
839
_Sp (_Tp::*__p_)(_Ap) const;
841
_LIBCPP_INLINE_VISIBILITY explicit const_mem_fun1_ref_t(_Sp (_Tp::*__p)(_Ap) const)
843
_LIBCPP_INLINE_VISIBILITY _Sp operator()(const _Tp& __p, _Ap __x) const
844
{return (__p.*__p_)(__x);}
847
template <class _Sp, class _Tp>
848
inline _LIBCPP_INLINE_VISIBILITY
849
const_mem_fun_ref_t<_Sp,_Tp>
850
mem_fun_ref(_Sp (_Tp::*__f)() const)
851
{return const_mem_fun_ref_t<_Sp,_Tp>(__f);}
853
template <class _Sp, class _Tp, class _Ap>
854
inline _LIBCPP_INLINE_VISIBILITY
855
const_mem_fun1_ref_t<_Sp,_Tp,_Ap>
856
mem_fun_ref(_Sp (_Tp::*__f)(_Ap) const)
857
{return const_mem_fun1_ref_t<_Sp,_Tp,_Ap>(__f);}
859
#ifdef _LIBCPP_HAS_NO_VARIADICS
861
#include <__functional_03>
863
#else // _LIBCPP_HAS_NO_VARIADICS
867
: public __weak_result_type<_Tp>
876
_LIBCPP_INLINE_VISIBILITY __mem_fn(type __f) : __f_(__f) {}
879
template <class... _ArgTypes>
880
_LIBCPP_INLINE_VISIBILITY
881
typename __invoke_return<type, _ArgTypes...>::type
882
operator() (_ArgTypes&&... __args)
884
return __invoke(__f_, _VSTD::forward<_ArgTypes>(__args)...);
888
template<class _Rp, class _Tp>
889
inline _LIBCPP_INLINE_VISIBILITY
891
mem_fn(_Rp _Tp::* __pm)
893
return __mem_fn<_Rp _Tp::*>(__pm);
896
template<class _Rp, class _Tp, class ..._Args>
897
inline _LIBCPP_INLINE_VISIBILITY
898
__mem_fn<_Rp (_Tp::*)(_Args...)>
899
mem_fn(_Rp (_Tp::* __pm)(_Args...))
901
return __mem_fn<_Rp (_Tp::*)(_Args...)>(__pm);
904
template<class _Rp, class _Tp, class ..._Args>
905
inline _LIBCPP_INLINE_VISIBILITY
906
__mem_fn<_Rp (_Tp::*)(_Args...) const>
907
mem_fn(_Rp (_Tp::* __pm)(_Args...) const)
909
return __mem_fn<_Rp (_Tp::*)(_Args...) const>(__pm);
912
template<class _Rp, class _Tp, class ..._Args>
913
inline _LIBCPP_INLINE_VISIBILITY
914
__mem_fn<_Rp (_Tp::*)(_Args...) volatile>
915
mem_fn(_Rp (_Tp::* __pm)(_Args...) volatile)
917
return __mem_fn<_Rp (_Tp::*)(_Args...) volatile>(__pm);
920
template<class _Rp, class _Tp, class ..._Args>
921
inline _LIBCPP_INLINE_VISIBILITY
922
__mem_fn<_Rp (_Tp::*)(_Args...) const volatile>
923
mem_fn(_Rp (_Tp::* __pm)(_Args...) const volatile)
925
return __mem_fn<_Rp (_Tp::*)(_Args...) const volatile>(__pm);
930
class _LIBCPP_EXCEPTION_ABI bad_function_call
935
template<class _Fp> class _LIBCPP_TYPE_VIS function; // undefined
940
template<class _Rp, class ..._ArgTypes>
941
struct __maybe_derive_from_unary_function
945
template<class _Rp, class _A1>
946
struct __maybe_derive_from_unary_function<_Rp(_A1)>
947
: public unary_function<_A1, _Rp>
951
template<class _Rp, class ..._ArgTypes>
952
struct __maybe_derive_from_binary_function
956
template<class _Rp, class _A1, class _A2>
957
struct __maybe_derive_from_binary_function<_Rp(_A1, _A2)>
958
: public binary_function<_A1, _A2, _Rp>
962
template<class _Fp> class __base;
964
template<class _Rp, class ..._ArgTypes>
965
class __base<_Rp(_ArgTypes...)>
967
__base(const __base&);
968
__base& operator=(const __base&);
970
_LIBCPP_INLINE_VISIBILITY __base() {}
971
_LIBCPP_INLINE_VISIBILITY virtual ~__base() {}
972
virtual __base* __clone() const = 0;
973
virtual void __clone(__base*) const = 0;
974
virtual void destroy() _NOEXCEPT = 0;
975
virtual void destroy_deallocate() _NOEXCEPT = 0;
976
virtual _Rp operator()(_ArgTypes&& ...) = 0;
977
#ifndef _LIBCPP_NO_RTTI
978
virtual const void* target(const type_info&) const _NOEXCEPT = 0;
979
virtual const std::type_info& target_type() const _NOEXCEPT = 0;
980
#endif // _LIBCPP_NO_RTTI
983
template<class _FD, class _Alloc, class _FB> class __func;
985
template<class _Fp, class _Alloc, class _Rp, class ..._ArgTypes>
986
class __func<_Fp, _Alloc, _Rp(_ArgTypes...)>
987
: public __base<_Rp(_ArgTypes...)>
989
__compressed_pair<_Fp, _Alloc> __f_;
991
_LIBCPP_INLINE_VISIBILITY
992
explicit __func(_Fp&& __f)
993
: __f_(piecewise_construct, _VSTD::forward_as_tuple(_VSTD::move(__f)),
994
_VSTD::forward_as_tuple()) {}
995
_LIBCPP_INLINE_VISIBILITY
996
explicit __func(const _Fp& __f, const _Alloc& __a)
997
: __f_(piecewise_construct, _VSTD::forward_as_tuple(__f),
998
_VSTD::forward_as_tuple(__a)) {}
1000
_LIBCPP_INLINE_VISIBILITY
1001
explicit __func(const _Fp& __f, _Alloc&& __a)
1002
: __f_(piecewise_construct, _VSTD::forward_as_tuple(__f),
1003
_VSTD::forward_as_tuple(_VSTD::move(__a))) {}
1005
_LIBCPP_INLINE_VISIBILITY
1006
explicit __func(_Fp&& __f, _Alloc&& __a)
1007
: __f_(piecewise_construct, _VSTD::forward_as_tuple(_VSTD::move(__f)),
1008
_VSTD::forward_as_tuple(_VSTD::move(__a))) {}
1009
virtual __base<_Rp(_ArgTypes...)>* __clone() const;
1010
virtual void __clone(__base<_Rp(_ArgTypes...)>*) const;
1011
virtual void destroy() _NOEXCEPT;
1012
virtual void destroy_deallocate() _NOEXCEPT;
1013
virtual _Rp operator()(_ArgTypes&& ... __arg);
1014
#ifndef _LIBCPP_NO_RTTI
1015
virtual const void* target(const type_info&) const _NOEXCEPT;
1016
virtual const std::type_info& target_type() const _NOEXCEPT;
1017
#endif // _LIBCPP_NO_RTTI
1020
template<class _Fp, class _Alloc, class _Rp, class ..._ArgTypes>
1021
__base<_Rp(_ArgTypes...)>*
1022
__func<_Fp, _Alloc, _Rp(_ArgTypes...)>::__clone() const
1024
typedef typename _Alloc::template rebind<__func>::other _Ap;
1025
_Ap __a(__f_.second());
1026
typedef __allocator_destructor<_Ap> _Dp;
1027
unique_ptr<__func, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
1028
::new (__hold.get()) __func(__f_.first(), _Alloc(__a));
1029
return __hold.release();
1032
template<class _Fp, class _Alloc, class _Rp, class ..._ArgTypes>
1034
__func<_Fp, _Alloc, _Rp(_ArgTypes...)>::__clone(__base<_Rp(_ArgTypes...)>* __p) const
1036
::new (__p) __func(__f_.first(), __f_.second());
1039
template<class _Fp, class _Alloc, class _Rp, class ..._ArgTypes>
1041
__func<_Fp, _Alloc, _Rp(_ArgTypes...)>::destroy() _NOEXCEPT
1043
__f_.~__compressed_pair<_Fp, _Alloc>();
1046
template<class _Fp, class _Alloc, class _Rp, class ..._ArgTypes>
1048
__func<_Fp, _Alloc, _Rp(_ArgTypes...)>::destroy_deallocate() _NOEXCEPT
1050
typedef typename _Alloc::template rebind<__func>::other _Ap;
1051
_Ap __a(__f_.second());
1052
__f_.~__compressed_pair<_Fp, _Alloc>();
1053
__a.deallocate(this, 1);
1056
template<class _Fp, class _Alloc, class _Rp, class ..._ArgTypes>
1058
__func<_Fp, _Alloc, _Rp(_ArgTypes...)>::operator()(_ArgTypes&& ... __arg)
1060
return __invoke(__f_.first(), _VSTD::forward<_ArgTypes>(__arg)...);
1063
#ifndef _LIBCPP_NO_RTTI
1065
template<class _Fp, class _Alloc, class _Rp, class ..._ArgTypes>
1067
__func<_Fp, _Alloc, _Rp(_ArgTypes...)>::target(const type_info& __ti) const _NOEXCEPT
1069
if (__ti == typeid(_Fp))
1070
return &__f_.first();
1071
return (const void*)0;
1074
template<class _Fp, class _Alloc, class _Rp, class ..._ArgTypes>
1075
const std::type_info&
1076
__func<_Fp, _Alloc, _Rp(_ArgTypes...)>::target_type() const _NOEXCEPT
1081
#endif // _LIBCPP_NO_RTTI
1085
template<class _Rp, class ..._ArgTypes>
1086
class _LIBCPP_TYPE_VIS function<_Rp(_ArgTypes...)>
1087
: public __function::__maybe_derive_from_unary_function<_Rp(_ArgTypes...)>,
1088
public __function::__maybe_derive_from_binary_function<_Rp(_ArgTypes...)>
1090
typedef __function::__base<_Rp(_ArgTypes...)> __base;
1091
typename aligned_storage<3*sizeof(void*)>::type __buf_;
1094
template <class _Fp>
1095
_LIBCPP_INLINE_VISIBILITY
1096
static bool __not_null(const _Fp&) {return true;}
1097
template <class _R2, class ..._Ap>
1098
_LIBCPP_INLINE_VISIBILITY
1099
static bool __not_null(_R2 (*__p)(_Ap...)) {return __p;}
1100
template <class _R2, class _Cp, class ..._Ap>
1101
_LIBCPP_INLINE_VISIBILITY
1102
static bool __not_null(_R2 (_Cp::*__p)(_Ap...)) {return __p;}
1103
template <class _R2, class _Cp, class ..._Ap>
1104
_LIBCPP_INLINE_VISIBILITY
1105
static bool __not_null(_R2 (_Cp::*__p)(_Ap...) const) {return __p;}
1106
template <class _R2, class _Cp, class ..._Ap>
1107
_LIBCPP_INLINE_VISIBILITY
1108
static bool __not_null(_R2 (_Cp::*__p)(_Ap...) volatile) {return __p;}
1109
template <class _R2, class _Cp, class ..._Ap>
1110
_LIBCPP_INLINE_VISIBILITY
1111
static bool __not_null(_R2 (_Cp::*__p)(_Ap...) const volatile) {return __p;}
1112
template <class _R2, class ..._Ap>
1113
_LIBCPP_INLINE_VISIBILITY
1114
static bool __not_null(const function<_Rp(_Ap...)>& __p) {return __p;}
1116
template <class _Fp, bool = !is_same<_Fp, function>::value &&
1117
__invokable<_Fp&, _ArgTypes...>::value>
1119
template <class _Fp>
1120
struct __callable<_Fp, true>
1122
static const bool value =
1123
is_convertible<typename __invoke_of<_Fp&, _ArgTypes...>::type,
1126
template <class _Fp>
1127
struct __callable<_Fp, false>
1129
static const bool value = false;
1132
typedef _Rp result_type;
1134
// construct/copy/destroy:
1135
_LIBCPP_INLINE_VISIBILITY
1136
function() _NOEXCEPT : __f_(0) {}
1137
_LIBCPP_INLINE_VISIBILITY
1138
function(nullptr_t) _NOEXCEPT : __f_(0) {}
1139
function(const function&);
1140
function(function&&) _NOEXCEPT;
1143
typename enable_if<__callable<_Fp>::value>::type* = 0);
1145
template<class _Alloc>
1146
_LIBCPP_INLINE_VISIBILITY
1147
function(allocator_arg_t, const _Alloc&) _NOEXCEPT : __f_(0) {}
1148
template<class _Alloc>
1149
_LIBCPP_INLINE_VISIBILITY
1150
function(allocator_arg_t, const _Alloc&, nullptr_t) _NOEXCEPT : __f_(0) {}
1151
template<class _Alloc>
1152
function(allocator_arg_t, const _Alloc&, const function&);
1153
template<class _Alloc>
1154
function(allocator_arg_t, const _Alloc&, function&&);
1155
template<class _Fp, class _Alloc>
1156
function(allocator_arg_t, const _Alloc& __a, _Fp __f,
1157
typename enable_if<__callable<_Fp>::value>::type* = 0);
1159
function& operator=(const function&);
1160
function& operator=(function&&) _NOEXCEPT;
1161
function& operator=(nullptr_t) _NOEXCEPT;
1165
__callable<typename decay<_Fp>::type>::value,
1172
// function modifiers:
1173
void swap(function&) _NOEXCEPT;
1174
template<class _Fp, class _Alloc>
1175
_LIBCPP_INLINE_VISIBILITY
1176
void assign(_Fp&& __f, const _Alloc& __a)
1177
{function(allocator_arg, __a, _VSTD::forward<_Fp>(__f)).swap(*this);}
1179
// function capacity:
1180
_LIBCPP_INLINE_VISIBILITY
1181
_LIBCPP_EXPLICIT operator bool() const _NOEXCEPT {return __f_;}
1183
// deleted overloads close possible hole in the type system
1184
template<class _R2, class... _ArgTypes2>
1185
bool operator==(const function<_R2(_ArgTypes2...)>&) const = delete;
1186
template<class _R2, class... _ArgTypes2>
1187
bool operator!=(const function<_R2(_ArgTypes2...)>&) const = delete;
1189
// function invocation:
1190
_Rp operator()(_ArgTypes...) const;
1192
#ifndef _LIBCPP_NO_RTTI
1193
// function target access:
1194
const std::type_info& target_type() const _NOEXCEPT;
1195
template <typename _Tp> _Tp* target() _NOEXCEPT;
1196
template <typename _Tp> const _Tp* target() const _NOEXCEPT;
1197
#endif // _LIBCPP_NO_RTTI
1200
template<class _Rp, class ..._ArgTypes>
1201
function<_Rp(_ArgTypes...)>::function(const function& __f)
1205
else if (__f.__f_ == (const __base*)&__f.__buf_)
1207
__f_ = (__base*)&__buf_;
1208
__f.__f_->__clone(__f_);
1211
__f_ = __f.__f_->__clone();
1214
template<class _Rp, class ..._ArgTypes>
1215
template <class _Alloc>
1216
function<_Rp(_ArgTypes...)>::function(allocator_arg_t, const _Alloc&,
1217
const function& __f)
1221
else if (__f.__f_ == (const __base*)&__f.__buf_)
1223
__f_ = (__base*)&__buf_;
1224
__f.__f_->__clone(__f_);
1227
__f_ = __f.__f_->__clone();
1230
template<class _Rp, class ..._ArgTypes>
1231
function<_Rp(_ArgTypes...)>::function(function&& __f) _NOEXCEPT
1235
else if (__f.__f_ == (__base*)&__f.__buf_)
1237
__f_ = (__base*)&__buf_;
1238
__f.__f_->__clone(__f_);
1247
template<class _Rp, class ..._ArgTypes>
1248
template <class _Alloc>
1249
function<_Rp(_ArgTypes...)>::function(allocator_arg_t, const _Alloc&,
1254
else if (__f.__f_ == (__base*)&__f.__buf_)
1256
__f_ = (__base*)&__buf_;
1257
__f.__f_->__clone(__f_);
1266
template<class _Rp, class ..._ArgTypes>
1267
template <class _Fp>
1268
function<_Rp(_ArgTypes...)>::function(_Fp __f,
1269
typename enable_if<__callable<_Fp>::value>::type*)
1272
if (__not_null(__f))
1274
typedef __function::__func<_Fp, allocator<_Fp>, _Rp(_ArgTypes...)> _FF;
1275
if (sizeof(_FF) <= sizeof(__buf_) && is_nothrow_copy_constructible<_Fp>::value)
1277
__f_ = (__base*)&__buf_;
1278
::new (__f_) _FF(_VSTD::move(__f));
1282
typedef allocator<_FF> _Ap;
1284
typedef __allocator_destructor<_Ap> _Dp;
1285
unique_ptr<__base, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
1286
::new (__hold.get()) _FF(_VSTD::move(__f), allocator<_Fp>(__a));
1287
__f_ = __hold.release();
1292
template<class _Rp, class ..._ArgTypes>
1293
template <class _Fp, class _Alloc>
1294
function<_Rp(_ArgTypes...)>::function(allocator_arg_t, const _Alloc& __a0, _Fp __f,
1295
typename enable_if<__callable<_Fp>::value>::type*)
1298
typedef allocator_traits<_Alloc> __alloc_traits;
1299
if (__not_null(__f))
1301
typedef __function::__func<_Fp, _Alloc, _Rp(_ArgTypes...)> _FF;
1302
if (sizeof(_FF) <= sizeof(__buf_) && is_nothrow_copy_constructible<_Fp>::value)
1304
__f_ = (__base*)&__buf_;
1305
::new (__f_) _FF(_VSTD::move(__f));
1309
typedef typename __alloc_traits::template
1310
#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
1313
rebind_alloc<_FF>::other
1317
typedef __allocator_destructor<_Ap> _Dp;
1318
unique_ptr<__base, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
1319
::new (__hold.get()) _FF(_VSTD::move(__f), _Alloc(__a));
1320
__f_ = __hold.release();
1325
template<class _Rp, class ..._ArgTypes>
1326
function<_Rp(_ArgTypes...)>&
1327
function<_Rp(_ArgTypes...)>::operator=(const function& __f)
1329
function(__f).swap(*this);
1333
template<class _Rp, class ..._ArgTypes>
1334
function<_Rp(_ArgTypes...)>&
1335
function<_Rp(_ArgTypes...)>::operator=(function&& __f) _NOEXCEPT
1337
if (__f_ == (__base*)&__buf_)
1340
__f_->destroy_deallocate();
1344
else if (__f.__f_ == (__base*)&__f.__buf_)
1346
__f_ = (__base*)&__buf_;
1347
__f.__f_->__clone(__f_);
1357
template<class _Rp, class ..._ArgTypes>
1358
function<_Rp(_ArgTypes...)>&
1359
function<_Rp(_ArgTypes...)>::operator=(nullptr_t) _NOEXCEPT
1361
if (__f_ == (__base*)&__buf_)
1364
__f_->destroy_deallocate();
1369
template<class _Rp, class ..._ArgTypes>
1370
template <class _Fp>
1373
function<_Rp(_ArgTypes...)>::template __callable<typename decay<_Fp>::type>::value,
1374
function<_Rp(_ArgTypes...)>&
1376
function<_Rp(_ArgTypes...)>::operator=(_Fp&& __f)
1378
function(_VSTD::forward<_Fp>(__f)).swap(*this);
1382
template<class _Rp, class ..._ArgTypes>
1383
function<_Rp(_ArgTypes...)>::~function()
1385
if (__f_ == (__base*)&__buf_)
1388
__f_->destroy_deallocate();
1391
template<class _Rp, class ..._ArgTypes>
1393
function<_Rp(_ArgTypes...)>::swap(function& __f) _NOEXCEPT
1395
if (__f_ == (__base*)&__buf_ && __f.__f_ == (__base*)&__f.__buf_)
1397
typename aligned_storage<sizeof(__buf_)>::type __tempbuf;
1398
__base* __t = (__base*)&__tempbuf;
1402
__f.__f_->__clone((__base*)&__buf_);
1403
__f.__f_->destroy();
1405
__f_ = (__base*)&__buf_;
1406
__t->__clone((__base*)&__f.__buf_);
1408
__f.__f_ = (__base*)&__f.__buf_;
1410
else if (__f_ == (__base*)&__buf_)
1412
__f_->__clone((__base*)&__f.__buf_);
1415
__f.__f_ = (__base*)&__f.__buf_;
1417
else if (__f.__f_ == (__base*)&__f.__buf_)
1419
__f.__f_->__clone((__base*)&__buf_);
1420
__f.__f_->destroy();
1422
__f_ = (__base*)&__buf_;
1425
_VSTD::swap(__f_, __f.__f_);
1428
template<class _Rp, class ..._ArgTypes>
1430
function<_Rp(_ArgTypes...)>::operator()(_ArgTypes... __arg) const
1432
#ifndef _LIBCPP_NO_EXCEPTIONS
1434
throw bad_function_call();
1435
#endif // _LIBCPP_NO_EXCEPTIONS
1436
return (*__f_)(_VSTD::forward<_ArgTypes>(__arg)...);
1439
#ifndef _LIBCPP_NO_RTTI
1441
template<class _Rp, class ..._ArgTypes>
1442
const std::type_info&
1443
function<_Rp(_ArgTypes...)>::target_type() const _NOEXCEPT
1446
return typeid(void);
1447
return __f_->target_type();
1450
template<class _Rp, class ..._ArgTypes>
1451
template <typename _Tp>
1453
function<_Rp(_ArgTypes...)>::target() _NOEXCEPT
1457
return (_Tp*)__f_->target(typeid(_Tp));
1460
template<class _Rp, class ..._ArgTypes>
1461
template <typename _Tp>
1463
function<_Rp(_ArgTypes...)>::target() const _NOEXCEPT
1466
return (const _Tp*)0;
1467
return (const _Tp*)__f_->target(typeid(_Tp));
1470
#endif // _LIBCPP_NO_RTTI
1472
template <class _Rp, class... _ArgTypes>
1473
inline _LIBCPP_INLINE_VISIBILITY
1475
operator==(const function<_Rp(_ArgTypes...)>& __f, nullptr_t) _NOEXCEPT {return !__f;}
1477
template <class _Rp, class... _ArgTypes>
1478
inline _LIBCPP_INLINE_VISIBILITY
1480
operator==(nullptr_t, const function<_Rp(_ArgTypes...)>& __f) _NOEXCEPT {return !__f;}
1482
template <class _Rp, class... _ArgTypes>
1483
inline _LIBCPP_INLINE_VISIBILITY
1485
operator!=(const function<_Rp(_ArgTypes...)>& __f, nullptr_t) _NOEXCEPT {return (bool)__f;}
1487
template <class _Rp, class... _ArgTypes>
1488
inline _LIBCPP_INLINE_VISIBILITY
1490
operator!=(nullptr_t, const function<_Rp(_ArgTypes...)>& __f) _NOEXCEPT {return (bool)__f;}
1492
template <class _Rp, class... _ArgTypes>
1493
inline _LIBCPP_INLINE_VISIBILITY
1495
swap(function<_Rp(_ArgTypes...)>& __x, function<_Rp(_ArgTypes...)>& __y) _NOEXCEPT
1496
{return __x.swap(__y);}
1498
template<class _Tp> struct __is_bind_expression : public false_type {};
1499
template<class _Tp> struct _LIBCPP_TYPE_VIS is_bind_expression
1500
: public __is_bind_expression<typename remove_cv<_Tp>::type> {};
1502
template<class _Tp> struct __is_placeholder : public integral_constant<int, 0> {};
1503
template<class _Tp> struct _LIBCPP_TYPE_VIS is_placeholder
1504
: public __is_placeholder<typename remove_cv<_Tp>::type> {};
1506
namespace placeholders
1509
template <int _Np> struct __ph {};
1520
extern __ph<10> _10;
1525
struct __is_placeholder<placeholders::__ph<_Np> >
1526
: public integral_constant<int, _Np> {};
1528
template <class _Tp, class _Uj>
1529
inline _LIBCPP_INLINE_VISIBILITY
1531
__mu(reference_wrapper<_Tp> __t, _Uj&)
1536
template <class _Ti, class ..._Uj, size_t ..._Indx>
1537
inline _LIBCPP_INLINE_VISIBILITY
1538
typename __invoke_of<_Ti&, _Uj...>::type
1539
__mu_expand(_Ti& __ti, tuple<_Uj...>& __uj, __tuple_indices<_Indx...>)
1541
return __ti(_VSTD::forward<_Uj>(get<_Indx>(__uj))...);
1544
template <class _Ti, class ..._Uj>
1545
inline _LIBCPP_INLINE_VISIBILITY
1548
is_bind_expression<_Ti>::value,
1549
typename __invoke_of<_Ti&, _Uj...>::type
1551
__mu(_Ti& __ti, tuple<_Uj...>& __uj)
1553
typedef typename __make_tuple_indices<sizeof...(_Uj)>::type __indices;
1554
return __mu_expand(__ti, __uj, __indices());
1557
template <bool IsPh, class _Ti, class _Uj>
1558
struct __mu_return2 {};
1560
template <class _Ti, class _Uj>
1561
struct __mu_return2<true, _Ti, _Uj>
1563
typedef typename tuple_element<is_placeholder<_Ti>::value - 1, _Uj>::type type;
1566
template <class _Ti, class _Uj>
1567
inline _LIBCPP_INLINE_VISIBILITY
1570
0 < is_placeholder<_Ti>::value,
1571
typename __mu_return2<0 < is_placeholder<_Ti>::value, _Ti, _Uj>::type
1573
__mu(_Ti&, _Uj& __uj)
1575
const size_t _Indx = is_placeholder<_Ti>::value - 1;
1576
return _VSTD::forward<typename tuple_element<_Indx, _Uj>::type>(get<_Indx>(__uj));
1579
template <class _Ti, class _Uj>
1580
inline _LIBCPP_INLINE_VISIBILITY
1583
!is_bind_expression<_Ti>::value &&
1584
is_placeholder<_Ti>::value == 0 &&
1585
!__is_reference_wrapper<_Ti>::value,
1588
__mu(_Ti& __ti, _Uj&)
1593
template <class _Ti, bool IsReferenceWrapper, bool IsBindEx, bool IsPh,
1595
struct ____mu_return;
1597
template <class _Ti, class ..._Uj>
1598
struct ____mu_return<_Ti, false, true, false, tuple<_Uj...> >
1600
typedef typename __invoke_of<_Ti&, _Uj...>::type type;
1603
template <class _Ti, class _TupleUj>
1604
struct ____mu_return<_Ti, false, false, true, _TupleUj>
1606
typedef typename tuple_element<is_placeholder<_Ti>::value - 1,
1607
_TupleUj>::type&& type;
1610
template <class _Ti, class _TupleUj>
1611
struct ____mu_return<_Ti, true, false, false, _TupleUj>
1613
typedef typename _Ti::type& type;
1616
template <class _Ti, class _TupleUj>
1617
struct ____mu_return<_Ti, false, false, false, _TupleUj>
1622
template <class _Ti, class _TupleUj>
1624
: public ____mu_return<_Ti,
1625
__is_reference_wrapper<_Ti>::value,
1626
is_bind_expression<_Ti>::value,
1627
0 < is_placeholder<_Ti>::value &&
1628
is_placeholder<_Ti>::value <= tuple_size<_TupleUj>::value,
1633
template <class _Fp, class _BoundArgs, class _TupleUj>
1634
struct _is_valid_bind_return
1636
static const bool value = false;
1639
template <class _Fp, class ..._BoundArgs, class _TupleUj>
1640
struct _is_valid_bind_return<_Fp, tuple<_BoundArgs...>, _TupleUj>
1642
static const bool value = __invokable<_Fp,
1643
typename __mu_return<_BoundArgs, _TupleUj>::type...>::value;
1646
template <class _Fp, class ..._BoundArgs, class _TupleUj>
1647
struct _is_valid_bind_return<_Fp, const tuple<_BoundArgs...>, _TupleUj>
1649
static const bool value = __invokable<_Fp,
1650
typename __mu_return<const _BoundArgs, _TupleUj>::type...>::value;
1653
template <class _Fp, class _BoundArgs, class _TupleUj,
1654
bool = _is_valid_bind_return<_Fp, _BoundArgs, _TupleUj>::value>
1655
struct __bind_return;
1657
template <class _Fp, class ..._BoundArgs, class _TupleUj>
1658
struct __bind_return<_Fp, tuple<_BoundArgs...>, _TupleUj, true>
1660
typedef typename __invoke_of
1663
typename __mu_return
1671
template <class _Fp, class ..._BoundArgs, class _TupleUj>
1672
struct __bind_return<_Fp, const tuple<_BoundArgs...>, _TupleUj, true>
1674
typedef typename __invoke_of
1677
typename __mu_return
1685
template <class _Fp, class _BoundArgs, size_t ..._Indx, class _Args>
1686
inline _LIBCPP_INLINE_VISIBILITY
1687
typename __bind_return<_Fp, _BoundArgs, _Args>::type
1688
__apply_functor(_Fp& __f, _BoundArgs& __bound_args, __tuple_indices<_Indx...>,
1691
return __invoke(__f, __mu(get<_Indx>(__bound_args), __args)...);
1694
template<class _Fp, class ..._BoundArgs>
1696
: public __weak_result_type<typename decay<_Fp>::type>
1699
typedef typename decay<_Fp>::type _Fd;
1700
typedef tuple<typename decay<_BoundArgs>::type...> _Td;
1705
typedef typename __make_tuple_indices<sizeof...(_BoundArgs)>::type __indices;
1707
#ifdef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
1709
_LIBCPP_INLINE_VISIBILITY
1710
__bind(const __bind& __b)
1712
__bound_args_(__b.__bound_args_) {}
1714
_LIBCPP_INLINE_VISIBILITY
1715
__bind& operator=(const __bind& __b)
1718
__bound_args_ = __b.__bound_args_;
1722
_LIBCPP_INLINE_VISIBILITY
1723
__bind(__bind&& __b)
1724
: __f_(_VSTD::move(__b.__f_)),
1725
__bound_args_(_VSTD::move(__b.__bound_args_)) {}
1727
_LIBCPP_INLINE_VISIBILITY
1728
__bind& operator=(__bind&& __b)
1730
__f_ = _VSTD::move(__b.__f_);
1731
__bound_args_ = _VSTD::move(__b.__bound_args_);
1735
#endif // _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
1737
template <class _Gp, class ..._BA,
1738
class = typename enable_if
1740
is_constructible<_Fd, _Gp>::value
1742
_LIBCPP_INLINE_VISIBILITY
1743
explicit __bind(_Gp&& __f, _BA&& ...__bound_args)
1744
: __f_(_VSTD::forward<_Gp>(__f)),
1745
__bound_args_(_VSTD::forward<_BA>(__bound_args)...) {}
1747
template <class ..._Args>
1748
_LIBCPP_INLINE_VISIBILITY
1749
typename __bind_return<_Fd, _Td, tuple<_Args&&...> >::type
1750
operator()(_Args&& ...__args)
1752
return __apply_functor(__f_, __bound_args_, __indices(),
1753
tuple<_Args&&...>(_VSTD::forward<_Args>(__args)...));
1756
template <class ..._Args>
1757
_LIBCPP_INLINE_VISIBILITY
1758
typename __bind_return<const _Fd, const _Td, tuple<_Args&&...> >::type
1759
operator()(_Args&& ...__args) const
1761
return __apply_functor(__f_, __bound_args_, __indices(),
1762
tuple<_Args&&...>(_VSTD::forward<_Args>(__args)...));
1766
template<class _Fp, class ..._BoundArgs>
1767
struct __is_bind_expression<__bind<_Fp, _BoundArgs...> > : public true_type {};
1769
template<class _Rp, class _Fp, class ..._BoundArgs>
1771
: public __bind<_Fp, _BoundArgs...>
1773
typedef __bind<_Fp, _BoundArgs...> base;
1774
typedef typename base::_Fd _Fd;
1775
typedef typename base::_Td _Td;
1777
typedef _Rp result_type;
1779
#ifdef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
1781
_LIBCPP_INLINE_VISIBILITY
1782
__bind_r(const __bind_r& __b)
1783
: base(_VSTD::forward<const base&>(__b)) {}
1785
_LIBCPP_INLINE_VISIBILITY
1786
__bind_r& operator=(const __bind_r& __b)
1788
base::operator=(_VSTD::forward<const base&>(__b));
1792
_LIBCPP_INLINE_VISIBILITY
1793
__bind_r(__bind_r&& __b)
1794
: base(_VSTD::forward<base>(__b)) {}
1796
_LIBCPP_INLINE_VISIBILITY
1797
__bind_r& operator=(__bind_r&& __b)
1799
base::operator=(_VSTD::forward<base>(__b));
1803
#endif // _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
1805
template <class _Gp, class ..._BA>
1806
_LIBCPP_INLINE_VISIBILITY
1807
explicit __bind_r(_Gp&& __f, _BA&& ...__bound_args)
1808
: base(_VSTD::forward<_Gp>(__f),
1809
_VSTD::forward<_BA>(__bound_args)...) {}
1811
template <class ..._Args>
1812
_LIBCPP_INLINE_VISIBILITY
1815
is_convertible<typename __bind_return<_Fd, _Td, tuple<_Args&&...> >::type,
1816
result_type>::value,
1819
operator()(_Args&& ...__args)
1821
return base::operator()(_VSTD::forward<_Args>(__args)...);
1824
template <class ..._Args>
1825
_LIBCPP_INLINE_VISIBILITY
1828
is_convertible<typename __bind_return<const _Fd, const _Td, tuple<_Args&&...> >::type,
1829
result_type>::value,
1832
operator()(_Args&& ...__args) const
1834
return base::operator()(_VSTD::forward<_Args>(__args)...);
1838
template<class _Rp, class _Fp, class ..._BoundArgs>
1839
struct __is_bind_expression<__bind_r<_Rp, _Fp, _BoundArgs...> > : public true_type {};
1841
template<class _Fp, class ..._BoundArgs>
1842
inline _LIBCPP_INLINE_VISIBILITY
1843
__bind<_Fp, _BoundArgs...>
1844
bind(_Fp&& __f, _BoundArgs&&... __bound_args)
1846
typedef __bind<_Fp, _BoundArgs...> type;
1847
return type(_VSTD::forward<_Fp>(__f), _VSTD::forward<_BoundArgs>(__bound_args)...);
1850
template<class _Rp, class _Fp, class ..._BoundArgs>
1851
inline _LIBCPP_INLINE_VISIBILITY
1852
__bind_r<_Rp, _Fp, _BoundArgs...>
1853
bind(_Fp&& __f, _BoundArgs&&... __bound_args)
1855
typedef __bind_r<_Rp, _Fp, _BoundArgs...> type;
1856
return type(_VSTD::forward<_Fp>(__f), _VSTD::forward<_BoundArgs>(__bound_args)...);
1859
#endif // _LIBCPP_HAS_NO_VARIADICS
1862
struct _LIBCPP_TYPE_VIS hash<bool>
1863
: public unary_function<bool, size_t>
1865
_LIBCPP_INLINE_VISIBILITY
1866
size_t operator()(bool __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
1870
struct _LIBCPP_TYPE_VIS hash<char>
1871
: public unary_function<char, size_t>
1873
_LIBCPP_INLINE_VISIBILITY
1874
size_t operator()(char __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
1878
struct _LIBCPP_TYPE_VIS hash<signed char>
1879
: public unary_function<signed char, size_t>
1881
_LIBCPP_INLINE_VISIBILITY
1882
size_t operator()(signed char __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
1886
struct _LIBCPP_TYPE_VIS hash<unsigned char>
1887
: public unary_function<unsigned char, size_t>
1889
_LIBCPP_INLINE_VISIBILITY
1890
size_t operator()(unsigned char __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
1893
#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
1896
struct _LIBCPP_TYPE_VIS hash<char16_t>
1897
: public unary_function<char16_t, size_t>
1899
_LIBCPP_INLINE_VISIBILITY
1900
size_t operator()(char16_t __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
1904
struct _LIBCPP_TYPE_VIS hash<char32_t>
1905
: public unary_function<char32_t, size_t>
1907
_LIBCPP_INLINE_VISIBILITY
1908
size_t operator()(char32_t __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
1911
#endif // _LIBCPP_HAS_NO_UNICODE_CHARS
1914
struct _LIBCPP_TYPE_VIS hash<wchar_t>
1915
: public unary_function<wchar_t, size_t>
1917
_LIBCPP_INLINE_VISIBILITY
1918
size_t operator()(wchar_t __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
1922
struct _LIBCPP_TYPE_VIS hash<short>
1923
: public unary_function<short, size_t>
1925
_LIBCPP_INLINE_VISIBILITY
1926
size_t operator()(short __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
1930
struct _LIBCPP_TYPE_VIS hash<unsigned short>
1931
: public unary_function<unsigned short, size_t>
1933
_LIBCPP_INLINE_VISIBILITY
1934
size_t operator()(unsigned short __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
1938
struct _LIBCPP_TYPE_VIS hash<int>
1939
: public unary_function<int, size_t>
1941
_LIBCPP_INLINE_VISIBILITY
1942
size_t operator()(int __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
1946
struct _LIBCPP_TYPE_VIS hash<unsigned int>
1947
: public unary_function<unsigned int, size_t>
1949
_LIBCPP_INLINE_VISIBILITY
1950
size_t operator()(unsigned int __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
1954
struct _LIBCPP_TYPE_VIS hash<long>
1955
: public unary_function<long, size_t>
1957
_LIBCPP_INLINE_VISIBILITY
1958
size_t operator()(long __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
1962
struct _LIBCPP_TYPE_VIS hash<unsigned long>
1963
: public unary_function<unsigned long, size_t>
1965
_LIBCPP_INLINE_VISIBILITY
1966
size_t operator()(unsigned long __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
1970
struct _LIBCPP_TYPE_VIS hash<long long>
1971
: public __scalar_hash<long long>
1976
struct _LIBCPP_TYPE_VIS hash<unsigned long long>
1977
: public __scalar_hash<unsigned long long>
1982
struct _LIBCPP_TYPE_VIS hash<float>
1983
: public __scalar_hash<float>
1985
_LIBCPP_INLINE_VISIBILITY
1986
size_t operator()(float __v) const _NOEXCEPT
1988
// -0.0 and 0.0 should return same hash
1991
return __scalar_hash<float>::operator()(__v);
1996
struct _LIBCPP_TYPE_VIS hash<double>
1997
: public __scalar_hash<double>
1999
_LIBCPP_INLINE_VISIBILITY
2000
size_t operator()(double __v) const _NOEXCEPT
2002
// -0.0 and 0.0 should return same hash
2005
return __scalar_hash<double>::operator()(__v);
2010
struct _LIBCPP_TYPE_VIS hash<long double>
2011
: public __scalar_hash<long double>
2013
_LIBCPP_INLINE_VISIBILITY
2014
size_t operator()(long double __v) const _NOEXCEPT
2016
// -0.0 and 0.0 should return same hash
2019
#if defined(__i386__)
2020
// Zero out padding bits
2037
return __u.__a ^ __u.__b ^ __u.__c ^ __u.__d;
2038
#elif defined(__x86_64__)
2039
// Zero out padding bits
2052
return __u.__a ^ __u.__b;
2054
return __scalar_hash<long double>::operator()(__v);
2059
// struct hash<T*> in <memory>
2061
_LIBCPP_END_NAMESPACE_STD
2063
#endif // _LIBCPP_FUNCTIONAL