| // -*- C++ -*- |
| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef _LIBCPP_FUNCTIONAL_03 |
| #define _LIBCPP_FUNCTIONAL_03 |
| |
| // manual variadic expansion for <functional> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| #pragma GCC system_header |
| #endif |
| |
| namespace __function { |
| |
| template<class _Fp> class __base; |
| |
| template<class _Rp> |
| class __base<_Rp()> |
| { |
| __base(const __base&); |
| __base& operator=(const __base&); |
| public: |
| __base() {} |
| virtual ~__base() {} |
| virtual __base* __clone() const = 0; |
| virtual void __clone(__base*) const = 0; |
| virtual void destroy() = 0; |
| virtual void destroy_deallocate() = 0; |
| virtual _Rp operator()() = 0; |
| #ifndef _LIBCPP_NO_RTTI |
| virtual const void* target(const type_info&) const = 0; |
| virtual const std::type_info& target_type() const = 0; |
| #endif // _LIBCPP_NO_RTTI |
| }; |
| |
| template<class _Rp, class _A0> |
| class __base<_Rp(_A0)> |
| { |
| __base(const __base&); |
| __base& operator=(const __base&); |
| public: |
| __base() {} |
| virtual ~__base() {} |
| virtual __base* __clone() const = 0; |
| virtual void __clone(__base*) const = 0; |
| virtual void destroy() = 0; |
| virtual void destroy_deallocate() = 0; |
| virtual _Rp operator()(_A0) = 0; |
| #ifndef _LIBCPP_NO_RTTI |
| virtual const void* target(const type_info&) const = 0; |
| virtual const std::type_info& target_type() const = 0; |
| #endif // _LIBCPP_NO_RTTI |
| }; |
| |
| template<class _Rp, class _A0, class _A1> |
| class __base<_Rp(_A0, _A1)> |
| { |
| __base(const __base&); |
| __base& operator=(const __base&); |
| public: |
| __base() {} |
| virtual ~__base() {} |
| virtual __base* __clone() const = 0; |
| virtual void __clone(__base*) const = 0; |
| virtual void destroy() = 0; |
| virtual void destroy_deallocate() = 0; |
| virtual _Rp operator()(_A0, _A1) = 0; |
| #ifndef _LIBCPP_NO_RTTI |
| virtual const void* target(const type_info&) const = 0; |
| virtual const std::type_info& target_type() const = 0; |
| #endif // _LIBCPP_NO_RTTI |
| }; |
| |
| template<class _Rp, class _A0, class _A1, class _A2> |
| class __base<_Rp(_A0, _A1, _A2)> |
| { |
| __base(const __base&); |
| __base& operator=(const __base&); |
| public: |
| __base() {} |
| virtual ~__base() {} |
| virtual __base* __clone() const = 0; |
| virtual void __clone(__base*) const = 0; |
| virtual void destroy() = 0; |
| virtual void destroy_deallocate() = 0; |
| virtual _Rp operator()(_A0, _A1, _A2) = 0; |
| #ifndef _LIBCPP_NO_RTTI |
| virtual const void* target(const type_info&) const = 0; |
| virtual const std::type_info& target_type() const = 0; |
| #endif // _LIBCPP_NO_RTTI |
| }; |
| |
| template<class _FD, class _Alloc, class _FB> class __func; |
| |
| template<class _Fp, class _Alloc, class _Rp> |
| class __func<_Fp, _Alloc, _Rp()> |
| : public __base<_Rp()> |
| { |
| __compressed_pair<_Fp, _Alloc> __f_; |
| public: |
| explicit __func(_Fp __f) : __f_(_VSTD::move(__f), __default_init_tag()) {} |
| explicit __func(_Fp __f, _Alloc __a) : __f_(_VSTD::move(__f), _VSTD::move(__a)) {} |
| virtual __base<_Rp()>* __clone() const; |
| virtual void __clone(__base<_Rp()>*) const; |
| virtual void destroy(); |
| virtual void destroy_deallocate(); |
| virtual _Rp operator()(); |
| #ifndef _LIBCPP_NO_RTTI |
| virtual const void* target(const type_info&) const; |
| virtual const std::type_info& target_type() const; |
| #endif // _LIBCPP_NO_RTTI |
| }; |
| |
| template<class _Fp, class _Alloc, class _Rp> |
| __base<_Rp()>* |
| __func<_Fp, _Alloc, _Rp()>::__clone() const |
| { |
| typedef allocator_traits<_Alloc> __alloc_traits; |
| typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap; |
| _Ap __a(__f_.second()); |
| typedef __allocator_destructor<_Ap> _Dp; |
| unique_ptr<__func, _Dp> __hold(__a.allocate(1), _Dp(__a, 1)); |
| ::new (__hold.get()) __func(__f_.first(), _Alloc(__a)); |
| return __hold.release(); |
| } |
| |
| template<class _Fp, class _Alloc, class _Rp> |
| void |
| __func<_Fp, _Alloc, _Rp()>::__clone(__base<_Rp()>* __p) const |
| { |
| ::new (__p) __func(__f_.first(), __f_.second()); |
| } |
| |
| template<class _Fp, class _Alloc, class _Rp> |
| void |
| __func<_Fp, _Alloc, _Rp()>::destroy() |
| { |
| __f_.~__compressed_pair<_Fp, _Alloc>(); |
| } |
| |
| template<class _Fp, class _Alloc, class _Rp> |
| void |
| __func<_Fp, _Alloc, _Rp()>::destroy_deallocate() |
| { |
| typedef allocator_traits<_Alloc> __alloc_traits; |
| typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap; |
| _Ap __a(__f_.second()); |
| __f_.~__compressed_pair<_Fp, _Alloc>(); |
| __a.deallocate(this, 1); |
| } |
| |
| template<class _Fp, class _Alloc, class _Rp> |
| _Rp |
| __func<_Fp, _Alloc, _Rp()>::operator()() |
| { |
| typedef __invoke_void_return_wrapper<_Rp> _Invoker; |
| return _Invoker::__call(__f_.first()); |
| } |
| |
| #ifndef _LIBCPP_NO_RTTI |
| |
| template<class _Fp, class _Alloc, class _Rp> |
| const void* |
| __func<_Fp, _Alloc, _Rp()>::target(const type_info& __ti) const |
| { |
| if (__ti == typeid(_Fp)) |
| return &__f_.first(); |
| return (const void*)0; |
| } |
| |
| template<class _Fp, class _Alloc, class _Rp> |
| const std::type_info& |
| __func<_Fp, _Alloc, _Rp()>::target_type() const |
| { |
| return typeid(_Fp); |
| } |
| |
| #endif // _LIBCPP_NO_RTTI |
| |
| template<class _Fp, class _Alloc, class _Rp, class _A0> |
| class __func<_Fp, _Alloc, _Rp(_A0)> |
| : public __base<_Rp(_A0)> |
| { |
| __compressed_pair<_Fp, _Alloc> __f_; |
| public: |
| _LIBCPP_INLINE_VISIBILITY explicit __func(_Fp __f) : __f_(_VSTD::move(__f), __default_init_tag()) {} |
| _LIBCPP_INLINE_VISIBILITY explicit __func(_Fp __f, _Alloc __a) |
| : __f_(_VSTD::move(__f), _VSTD::move(__a)) {} |
| virtual __base<_Rp(_A0)>* __clone() const; |
| virtual void __clone(__base<_Rp(_A0)>*) const; |
| virtual void destroy(); |
| virtual void destroy_deallocate(); |
| virtual _Rp operator()(_A0); |
| #ifndef _LIBCPP_NO_RTTI |
| virtual const void* target(const type_info&) const; |
| virtual const std::type_info& target_type() const; |
| #endif // _LIBCPP_NO_RTTI |
| }; |
| |
| template<class _Fp, class _Alloc, class _Rp, class _A0> |
| __base<_Rp(_A0)>* |
| __func<_Fp, _Alloc, _Rp(_A0)>::__clone() const |
| { |
| typedef allocator_traits<_Alloc> __alloc_traits; |
| typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap; |
| _Ap __a(__f_.second()); |
| typedef __allocator_destructor<_Ap> _Dp; |
| unique_ptr<__func, _Dp> __hold(__a.allocate(1), _Dp(__a, 1)); |
| ::new (__hold.get()) __func(__f_.first(), _Alloc(__a)); |
| return __hold.release(); |
| } |
| |
| template<class _Fp, class _Alloc, class _Rp, class _A0> |
| void |
| __func<_Fp, _Alloc, _Rp(_A0)>::__clone(__base<_Rp(_A0)>* __p) const |
| { |
| ::new (__p) __func(__f_.first(), __f_.second()); |
| } |
| |
| template<class _Fp, class _Alloc, class _Rp, class _A0> |
| void |
| __func<_Fp, _Alloc, _Rp(_A0)>::destroy() |
| { |
| __f_.~__compressed_pair<_Fp, _Alloc>(); |
| } |
| |
| template<class _Fp, class _Alloc, class _Rp, class _A0> |
| void |
| __func<_Fp, _Alloc, _Rp(_A0)>::destroy_deallocate() |
| { |
| typedef allocator_traits<_Alloc> __alloc_traits; |
| typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap; |
| _Ap __a(__f_.second()); |
| __f_.~__compressed_pair<_Fp, _Alloc>(); |
| __a.deallocate(this, 1); |
| } |
| |
| template<class _Fp, class _Alloc, class _Rp, class _A0> |
| _Rp |
| __func<_Fp, _Alloc, _Rp(_A0)>::operator()(_A0 __a0) |
| { |
| typedef __invoke_void_return_wrapper<_Rp> _Invoker; |
| return _Invoker::__call(__f_.first(), __a0); |
| } |
| |
| #ifndef _LIBCPP_NO_RTTI |
| |
| template<class _Fp, class _Alloc, class _Rp, class _A0> |
| const void* |
| __func<_Fp, _Alloc, _Rp(_A0)>::target(const type_info& __ti) const |
| { |
| if (__ti == typeid(_Fp)) |
| return &__f_.first(); |
| return (const void*)0; |
| } |
| |
| template<class _Fp, class _Alloc, class _Rp, class _A0> |
| const std::type_info& |
| __func<_Fp, _Alloc, _Rp(_A0)>::target_type() const |
| { |
| return typeid(_Fp); |
| } |
| |
| #endif // _LIBCPP_NO_RTTI |
| |
| template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1> |
| class __func<_Fp, _Alloc, _Rp(_A0, _A1)> |
| : public __base<_Rp(_A0, _A1)> |
| { |
| __compressed_pair<_Fp, _Alloc> __f_; |
| public: |
| _LIBCPP_INLINE_VISIBILITY explicit __func(_Fp __f) : __f_(_VSTD::move(__f), __default_init_tag()) {} |
| _LIBCPP_INLINE_VISIBILITY explicit __func(_Fp __f, _Alloc __a) |
| : __f_(_VSTD::move(__f), _VSTD::move(__a)) {} |
| virtual __base<_Rp(_A0, _A1)>* __clone() const; |
| virtual void __clone(__base<_Rp(_A0, _A1)>*) const; |
| virtual void destroy(); |
| virtual void destroy_deallocate(); |
| virtual _Rp operator()(_A0, _A1); |
| #ifndef _LIBCPP_NO_RTTI |
| virtual const void* target(const type_info&) const; |
| virtual const std::type_info& target_type() const; |
| #endif // _LIBCPP_NO_RTTI |
| }; |
| |
| template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1> |
| __base<_Rp(_A0, _A1)>* |
| __func<_Fp, _Alloc, _Rp(_A0, _A1)>::__clone() const |
| { |
| typedef allocator_traits<_Alloc> __alloc_traits; |
| typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap; |
| _Ap __a(__f_.second()); |
| typedef __allocator_destructor<_Ap> _Dp; |
| unique_ptr<__func, _Dp> __hold(__a.allocate(1), _Dp(__a, 1)); |
| ::new (__hold.get()) __func(__f_.first(), _Alloc(__a)); |
| return __hold.release(); |
| } |
| |
| template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1> |
| void |
| __func<_Fp, _Alloc, _Rp(_A0, _A1)>::__clone(__base<_Rp(_A0, _A1)>* __p) const |
| { |
| ::new (__p) __func(__f_.first(), __f_.second()); |
| } |
| |
| template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1> |
| void |
| __func<_Fp, _Alloc, _Rp(_A0, _A1)>::destroy() |
| { |
| __f_.~__compressed_pair<_Fp, _Alloc>(); |
| } |
| |
| template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1> |
| void |
| __func<_Fp, _Alloc, _Rp(_A0, _A1)>::destroy_deallocate() |
| { |
| typedef allocator_traits<_Alloc> __alloc_traits; |
| typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap; |
| _Ap __a(__f_.second()); |
| __f_.~__compressed_pair<_Fp, _Alloc>(); |
| __a.deallocate(this, 1); |
| } |
| |
| template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1> |
| _Rp |
| __func<_Fp, _Alloc, _Rp(_A0, _A1)>::operator()(_A0 __a0, _A1 __a1) |
| { |
| typedef __invoke_void_return_wrapper<_Rp> _Invoker; |
| return _Invoker::__call(__f_.first(), __a0, __a1); |
| } |
| |
| #ifndef _LIBCPP_NO_RTTI |
| |
| template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1> |
| const void* |
| __func<_Fp, _Alloc, _Rp(_A0, _A1)>::target(const type_info& __ti) const |
| { |
| if (__ti == typeid(_Fp)) |
| return &__f_.first(); |
| return (const void*)0; |
| } |
| |
| template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1> |
| const std::type_info& |
| __func<_Fp, _Alloc, _Rp(_A0, _A1)>::target_type() const |
| { |
| return typeid(_Fp); |
| } |
| |
| #endif // _LIBCPP_NO_RTTI |
| |
| template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2> |
| class __func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)> |
| : public __base<_Rp(_A0, _A1, _A2)> |
| { |
| __compressed_pair<_Fp, _Alloc> __f_; |
| public: |
| _LIBCPP_INLINE_VISIBILITY explicit __func(_Fp __f) : __f_(_VSTD::move(__f), __default_init_tag()) {} |
| _LIBCPP_INLINE_VISIBILITY explicit __func(_Fp __f, _Alloc __a) |
| : __f_(_VSTD::move(__f), _VSTD::move(__a)) {} |
| virtual __base<_Rp(_A0, _A1, _A2)>* __clone() const; |
| virtual void __clone(__base<_Rp(_A0, _A1, _A2)>*) const; |
| virtual void destroy(); |
| virtual void destroy_deallocate(); |
| virtual _Rp operator()(_A0, _A1, _A2); |
| #ifndef _LIBCPP_NO_RTTI |
| virtual const void* target(const type_info&) const; |
| virtual const std::type_info& target_type() const; |
| #endif // _LIBCPP_NO_RTTI |
| }; |
| |
| template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2> |
| __base<_Rp(_A0, _A1, _A2)>* |
| __func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::__clone() const |
| { |
| typedef allocator_traits<_Alloc> __alloc_traits; |
| typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap; |
| _Ap __a(__f_.second()); |
| typedef __allocator_destructor<_Ap> _Dp; |
| unique_ptr<__func, _Dp> __hold(__a.allocate(1), _Dp(__a, 1)); |
| ::new (__hold.get()) __func(__f_.first(), _Alloc(__a)); |
| return __hold.release(); |
| } |
| |
| template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2> |
| void |
| __func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::__clone(__base<_Rp(_A0, _A1, _A2)>* __p) const |
| { |
| ::new (__p) __func(__f_.first(), __f_.second()); |
| } |
| |
| template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2> |
| void |
| __func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::destroy() |
| { |
| __f_.~__compressed_pair<_Fp, _Alloc>(); |
| } |
| |
| template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2> |
| void |
| __func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::destroy_deallocate() |
| { |
| typedef allocator_traits<_Alloc> __alloc_traits; |
| typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap; |
| _Ap __a(__f_.second()); |
| __f_.~__compressed_pair<_Fp, _Alloc>(); |
| __a.deallocate(this, 1); |
| } |
| |
| template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2> |
| _Rp |
| __func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::operator()(_A0 __a0, _A1 __a1, _A2 __a2) |
| { |
| typedef __invoke_void_return_wrapper<_Rp> _Invoker; |
| return _Invoker::__call(__f_.first(), __a0, __a1, __a2); |
| } |
| |
| #ifndef _LIBCPP_NO_RTTI |
| |
| template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2> |
| const void* |
| __func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::target(const type_info& __ti) const |
| { |
| if (__ti == typeid(_Fp)) |
| return &__f_.first(); |
| return (const void*)0; |
| } |
| |
| template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2> |
| const std::type_info& |
| __func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::target_type() const |
| { |
| return typeid(_Fp); |
| } |
| |
| #endif // _LIBCPP_NO_RTTI |
| |
| } // __function |
| |
| template<class _Rp> |
| class _LIBCPP_TEMPLATE_VIS function<_Rp()> |
| { |
| typedef __function::__base<_Rp()> __base; |
| aligned_storage<3*sizeof(void*)>::type __buf_; |
| __base* __f_; |
| |
| public: |
| typedef _Rp result_type; |
| |
| // 20.7.16.2.1, construct/copy/destroy: |
| _LIBCPP_INLINE_VISIBILITY explicit function() : __f_(0) {} |
| _LIBCPP_INLINE_VISIBILITY function(nullptr_t) : __f_(0) {} |
| function(const function&); |
| template<class _Fp> |
| function(_Fp, |
| typename enable_if<!is_integral<_Fp>::value>::type* = 0); |
| |
| template<class _Alloc> |
| _LIBCPP_INLINE_VISIBILITY |
| function(allocator_arg_t, const _Alloc&) : __f_(0) {} |
| template<class _Alloc> |
| _LIBCPP_INLINE_VISIBILITY |
| function(allocator_arg_t, const _Alloc&, nullptr_t) : __f_(0) {} |
| template<class _Alloc> |
| function(allocator_arg_t, const _Alloc&, const function&); |
| template<class _Fp, class _Alloc> |
| function(allocator_arg_t, const _Alloc& __a, _Fp __f, |
| typename enable_if<!is_integral<_Fp>::value>::type* = 0); |
| |
| function& operator=(const function&); |
| function& operator=(nullptr_t); |
| template<class _Fp> |
| typename enable_if |
| < |
| !is_integral<_Fp>::value, |
| function& |
| >::type |
| operator=(_Fp); |
| |
| ~function(); |
| |
| // 20.7.16.2.2, function modifiers: |
| void swap(function&); |
| template<class _Fp, class _Alloc> |
| _LIBCPP_INLINE_VISIBILITY |
| void assign(_Fp __f, const _Alloc& __a) |
| {function(allocator_arg, __a, __f).swap(*this);} |
| |
| // 20.7.16.2.3, function capacity: |
| _LIBCPP_INLINE_VISIBILITY operator bool() const {return __f_;} |
| |
| private: |
| // deleted overloads close possible hole in the type system |
| template<class _R2> |
| bool operator==(const function<_R2()>&) const;// = delete; |
| template<class _R2> |
| bool operator!=(const function<_R2()>&) const;// = delete; |
| public: |
| // 20.7.16.2.4, function invocation: |
| _Rp operator()() const; |
| |
| #ifndef _LIBCPP_NO_RTTI |
| // 20.7.16.2.5, function target access: |
| const std::type_info& target_type() const; |
| template <typename _Tp> _Tp* target(); |
| template <typename _Tp> const _Tp* target() const; |
| #endif // _LIBCPP_NO_RTTI |
| }; |
| |
| template<class _Rp> |
| function<_Rp()>::function(const function& __f) |
| { |
| if (__f.__f_ == 0) |
| __f_ = 0; |
| else if (__f.__f_ == (const __base*)&__f.__buf_) |
| { |
| __f_ = (__base*)&__buf_; |
| __f.__f_->__clone(__f_); |
| } |
| else |
| __f_ = __f.__f_->__clone(); |
| } |
| |
| template<class _Rp> |
| template<class _Alloc> |
| function<_Rp()>::function(allocator_arg_t, const _Alloc&, const function& __f) |
| { |
| if (__f.__f_ == 0) |
| __f_ = 0; |
| else if (__f.__f_ == (const __base*)&__f.__buf_) |
| { |
| __f_ = (__base*)&__buf_; |
| __f.__f_->__clone(__f_); |
| } |
| else |
| __f_ = __f.__f_->__clone(); |
| } |
| |
| template<class _Rp> |
| template <class _Fp> |
| function<_Rp()>::function(_Fp __f, |
| typename enable_if<!is_integral<_Fp>::value>::type*) |
| : __f_(0) |
| { |
| if (__function::__not_null(__f)) |
| { |
| typedef __function::__func<_Fp, allocator<_Fp>, _Rp()> _FF; |
| if (sizeof(_FF) <= sizeof(__buf_)) |
| { |
| __f_ = (__base*)&__buf_; |
| ::new (__f_) _FF(__f); |
| } |
| else |
| { |
| typedef allocator<_FF> _Ap; |
| _Ap __a; |
| typedef __allocator_destructor<_Ap> _Dp; |
| unique_ptr<__base, _Dp> __hold(__a.allocate(1), _Dp(__a, 1)); |
| ::new (__hold.get()) _FF(__f, allocator<_Fp>(__a)); |
| __f_ = __hold.release(); |
| } |
| } |
| } |
| |
| template<class _Rp> |
| template <class _Fp, class _Alloc> |
| function<_Rp()>::function(allocator_arg_t, const _Alloc& __a0, _Fp __f, |
| typename enable_if<!is_integral<_Fp>::value>::type*) |
| : __f_(0) |
| { |
| typedef allocator_traits<_Alloc> __alloc_traits; |
| if (__function::__not_null(__f)) |
| { |
| typedef __function::__func<_Fp, _Alloc, _Rp()> _FF; |
| if (sizeof(_FF) <= sizeof(__buf_)) |
| { |
| __f_ = (__base*)&__buf_; |
| ::new (__f_) _FF(__f, __a0); |
| } |
| else |
| { |
| typedef typename __rebind_alloc_helper<__alloc_traits, _FF>::type _Ap; |
| _Ap __a(__a0); |
| typedef __allocator_destructor<_Ap> _Dp; |
| unique_ptr<__base, _Dp> __hold(__a.allocate(1), _Dp(__a, 1)); |
| ::new (__hold.get()) _FF(__f, _Alloc(__a)); |
| __f_ = __hold.release(); |
| } |
| } |
| } |
| |
| template<class _Rp> |
| function<_Rp()>& |
| function<_Rp()>::operator=(const function& __f) |
| { |
| if (__f) |
| function(__f).swap(*this); |
| else |
| *this = nullptr; |
| return *this; |
| } |
| |
| template<class _Rp> |
| function<_Rp()>& |
| function<_Rp()>::operator=(nullptr_t) |
| { |
| __base* __t = __f_; |
| __f_ = 0; |
| if (__t == (__base*)&__buf_) |
| __t->destroy(); |
| else if (__t) |
| __t->destroy_deallocate(); |
| return *this; |
| } |
| |
| template<class _Rp> |
| template <class _Fp> |
| typename enable_if |
| < |
| !is_integral<_Fp>::value, |
| function<_Rp()>& |
| >::type |
| function<_Rp()>::operator=(_Fp __f) |
| { |
| function(_VSTD::move(__f)).swap(*this); |
| return *this; |
| } |
| |
| template<class _Rp> |
| function<_Rp()>::~function() |
| { |
| if (__f_ == (__base*)&__buf_) |
| __f_->destroy(); |
| else if (__f_) |
| __f_->destroy_deallocate(); |
| } |
| |
| template<class _Rp> |
| void |
| function<_Rp()>::swap(function& __f) |
| { |
| if (_VSTD::addressof(__f) == this) |
| return; |
| if (__f_ == (__base*)&__buf_ && __f.__f_ == (__base*)&__f.__buf_) |
| { |
| typename aligned_storage<sizeof(__buf_)>::type __tempbuf; |
| __base* __t = (__base*)&__tempbuf; |
| __f_->__clone(__t); |
| __f_->destroy(); |
| __f_ = 0; |
| __f.__f_->__clone((__base*)&__buf_); |
| __f.__f_->destroy(); |
| __f.__f_ = 0; |
| __f_ = (__base*)&__buf_; |
| __t->__clone((__base*)&__f.__buf_); |
| __t->destroy(); |
| __f.__f_ = (__base*)&__f.__buf_; |
| } |
| else if (__f_ == (__base*)&__buf_) |
| { |
| __f_->__clone((__base*)&__f.__buf_); |
| __f_->destroy(); |
| __f_ = __f.__f_; |
| __f.__f_ = (__base*)&__f.__buf_; |
| } |
| else if (__f.__f_ == (__base*)&__f.__buf_) |
| { |
| __f.__f_->__clone((__base*)&__buf_); |
| __f.__f_->destroy(); |
| __f.__f_ = __f_; |
| __f_ = (__base*)&__buf_; |
| } |
| else |
| _VSTD::swap(__f_, __f.__f_); |
| } |
| |
| template<class _Rp> |
| _Rp |
| function<_Rp()>::operator()() const |
| { |
| if (__f_ == 0) |
| __throw_bad_function_call(); |
| return (*__f_)(); |
| } |
| |
| #ifndef _LIBCPP_NO_RTTI |
| |
| template<class _Rp> |
| const std::type_info& |
| function<_Rp()>::target_type() const |
| { |
| if (__f_ == 0) |
| return typeid(void); |
| return __f_->target_type(); |
| } |
| |
| template<class _Rp> |
| template <typename _Tp> |
| _Tp* |
| function<_Rp()>::target() |
| { |
| if (__f_ == 0) |
| return (_Tp*)0; |
| return (_Tp*) const_cast<void *>(__f_->target(typeid(_Tp))); |
| } |
| |
| template<class _Rp> |
| template <typename _Tp> |
| const _Tp* |
| function<_Rp()>::target() const |
| { |
| if (__f_ == 0) |
| return (const _Tp*)0; |
| return (const _Tp*)__f_->target(typeid(_Tp)); |
| } |
| |
| #endif // _LIBCPP_NO_RTTI |
| |
| template<class _Rp, class _A0> |
| class _LIBCPP_TEMPLATE_VIS function<_Rp(_A0)> |
| : public unary_function<_A0, _Rp> |
| { |
| typedef __function::__base<_Rp(_A0)> __base; |
| aligned_storage<3*sizeof(void*)>::type __buf_; |
| __base* __f_; |
| |
| public: |
| typedef _Rp result_type; |
| |
| // 20.7.16.2.1, construct/copy/destroy: |
| _LIBCPP_INLINE_VISIBILITY explicit function() : __f_(0) {} |
| _LIBCPP_INLINE_VISIBILITY function(nullptr_t) : __f_(0) {} |
| function(const function&); |
| template<class _Fp> |
| function(_Fp, |
| typename enable_if<!is_integral<_Fp>::value>::type* = 0); |
| |
| template<class _Alloc> |
| _LIBCPP_INLINE_VISIBILITY |
| function(allocator_arg_t, const _Alloc&) : __f_(0) {} |
| template<class _Alloc> |
| _LIBCPP_INLINE_VISIBILITY |
| function(allocator_arg_t, const _Alloc&, nullptr_t) : __f_(0) {} |
| template<class _Alloc> |
| function(allocator_arg_t, const _Alloc&, const function&); |
| template<class _Fp, class _Alloc> |
| function(allocator_arg_t, const _Alloc& __a, _Fp __f, |
| typename enable_if<!is_integral<_Fp>::value>::type* = 0); |
| |
| function& operator=(const function&); |
| function& operator=(nullptr_t); |
| template<class _Fp> |
| typename enable_if |
| < |
| !is_integral<_Fp>::value, |
| function& |
| >::type |
| operator=(_Fp); |
| |
| ~function(); |
| |
| // 20.7.16.2.2, function modifiers: |
| void swap(function&); |
| template<class _Fp, class _Alloc> |
| _LIBCPP_INLINE_VISIBILITY |
| void assign(_Fp __f, const _Alloc& __a) |
| {function(allocator_arg, __a, __f).swap(*this);} |
| |
| // 20.7.16.2.3, function capacity: |
| _LIBCPP_INLINE_VISIBILITY operator bool() const {return __f_;} |
| |
| private: |
| // deleted overloads close possible hole in the type system |
| template<class _R2, class _B0> |
| bool operator==(const function<_R2(_B0)>&) const;// = delete; |
| template<class _R2, class _B0> |
| bool operator!=(const function<_R2(_B0)>&) const;// = delete; |
| public: |
| // 20.7.16.2.4, function invocation: |
| _Rp operator()(_A0) const; |
| |
| #ifndef _LIBCPP_NO_RTTI |
| // 20.7.16.2.5, function target access: |
| const std::type_info& target_type() const; |
| template <typename _Tp> _Tp* target(); |
| template <typename _Tp> const _Tp* target() const; |
| #endif // _LIBCPP_NO_RTTI |
| }; |
| |
| template<class _Rp, class _A0> |
| function<_Rp(_A0)>::function(const function& __f) |
| { |
| if (__f.__f_ == 0) |
| __f_ = 0; |
| else if (__f.__f_ == (const __base*)&__f.__buf_) |
| { |
| __f_ = (__base*)&__buf_; |
| __f.__f_->__clone(__f_); |
| } |
| else |
| __f_ = __f.__f_->__clone(); |
| } |
| |
| template<class _Rp, class _A0> |
| template<class _Alloc> |
| function<_Rp(_A0)>::function(allocator_arg_t, const _Alloc&, const function& __f) |
| { |
| if (__f.__f_ == 0) |
| __f_ = 0; |
| else if (__f.__f_ == (const __base*)&__f.__buf_) |
| { |
| __f_ = (__base*)&__buf_; |
| __f.__f_->__clone(__f_); |
| } |
| else |
| __f_ = __f.__f_->__clone(); |
| } |
| |
| template<class _Rp, class _A0> |
| template <class _Fp> |
| function<_Rp(_A0)>::function(_Fp __f, |
| typename enable_if<!is_integral<_Fp>::value>::type*) |
| : __f_(0) |
| { |
| if (__function::__not_null(__f)) |
| { |
| typedef __function::__func<_Fp, allocator<_Fp>, _Rp(_A0)> _FF; |
| if (sizeof(_FF) <= sizeof(__buf_)) |
| { |
| __f_ = (__base*)&__buf_; |
| ::new (__f_) _FF(__f); |
| } |
| else |
| { |
| typedef allocator<_FF> _Ap; |
| _Ap __a; |
| typedef __allocator_destructor<_Ap> _Dp; |
| unique_ptr<__base, _Dp> __hold(__a.allocate(1), _Dp(__a, 1)); |
| ::new (__hold.get()) _FF(__f, allocator<_Fp>(__a)); |
| __f_ = __hold.release(); |
| } |
| } |
| } |
| |
| template<class _Rp, class _A0> |
| template <class _Fp, class _Alloc> |
| function<_Rp(_A0)>::function(allocator_arg_t, const _Alloc& __a0, _Fp __f, |
| typename enable_if<!is_integral<_Fp>::value>::type*) |
| : __f_(0) |
| { |
| typedef allocator_traits<_Alloc> __alloc_traits; |
| if (__function::__not_null(__f)) |
| { |
| typedef __function::__func<_Fp, _Alloc, _Rp(_A0)> _FF; |
| if (sizeof(_FF) <= sizeof(__buf_)) |
| { |
| __f_ = (__base*)&__buf_; |
| ::new (__f_) _FF(__f, __a0); |
| } |
| else |
| { |
| typedef typename __rebind_alloc_helper<__alloc_traits, _FF>::type _Ap; |
| _Ap __a(__a0); |
| typedef __allocator_destructor<_Ap> _Dp; |
| unique_ptr<__base, _Dp> __hold(__a.allocate(1), _Dp(__a, 1)); |
| ::new (__hold.get()) _FF(__f, _Alloc(__a)); |
| __f_ = __hold.release(); |
| } |
| } |
| } |
| |
| template<class _Rp, class _A0> |
| function<_Rp(_A0)>& |
| function<_Rp(_A0)>::operator=(const function& __f) |
| { |
| if (__f) |
| function(__f).swap(*this); |
| else |
| *this = nullptr; |
| return *this; |
| } |
| |
| template<class _Rp, class _A0> |
| function<_Rp(_A0)>& |
| function<_Rp(_A0)>::operator=(nullptr_t) |
| { |
| __base* __t = __f_; |
| __f_ = 0; |
| if (__t == (__base*)&__buf_) |
| __t->destroy(); |
| else if (__t) |
| __t->destroy_deallocate(); |
| return *this; |
| } |
| |
| template<class _Rp, class _A0> |
| template <class _Fp> |
| typename enable_if |
| < |
| !is_integral<_Fp>::value, |
| function<_Rp(_A0)>& |
| >::type |
| function<_Rp(_A0)>::operator=(_Fp __f) |
| { |
| function(_VSTD::move(__f)).swap(*this); |
| return *this; |
| } |
| |
| template<class _Rp, class _A0> |
| function<_Rp(_A0)>::~function() |
| { |
| if (__f_ == (__base*)&__buf_) |
| __f_->destroy(); |
| else if (__f_) |
| __f_->destroy_deallocate(); |
| } |
| |
| template<class _Rp, class _A0> |
| void |
| function<_Rp(_A0)>::swap(function& __f) |
| { |
| if (_VSTD::addressof(__f) == this) |
| return; |
| if (__f_ == (__base*)&__buf_ && __f.__f_ == (__base*)&__f.__buf_) |
| { |
| typename aligned_storage<sizeof(__buf_)>::type __tempbuf; |
| __base* __t = (__base*)&__tempbuf; |
| __f_->__clone(__t); |
| __f_->destroy(); |
| __f_ = 0; |
| __f.__f_->__clone((__base*)&__buf_); |
| __f.__f_->destroy(); |
| __f.__f_ = 0; |
| __f_ = (__base*)&__buf_; |
| __t->__clone((__base*)&__f.__buf_); |
| __t->destroy(); |
| __f.__f_ = (__base*)&__f.__buf_; |
| } |
| else if (__f_ == (__base*)&__buf_) |
| { |
| __f_->__clone((__base*)&__f.__buf_); |
| __f_->destroy(); |
| __f_ = __f.__f_; |
| __f.__f_ = (__base*)&__f.__buf_; |
| } |
| else if (__f.__f_ == (__base*)&__f.__buf_) |
| { |
| __f.__f_->__clone((__base*)&__buf_); |
| __f.__f_->destroy(); |
| __f.__f_ = __f_; |
| __f_ = (__base*)&__buf_; |
| } |
| else |
| _VSTD::swap(__f_, __f.__f_); |
| } |
| |
| template<class _Rp, class _A0> |
| _Rp |
| function<_Rp(_A0)>::operator()(_A0 __a0) const |
| { |
| if (__f_ == 0) |
| __throw_bad_function_call(); |
| return (*__f_)(__a0); |
| } |
| |
| #ifndef _LIBCPP_NO_RTTI |
| |
| template<class _Rp, class _A0> |
| const std::type_info& |
| function<_Rp(_A0)>::target_type() const |
| { |
| if (__f_ == 0) |
| return typeid(void); |
| return __f_->target_type(); |
| } |
| |
| template<class _Rp, class _A0> |
| template <typename _Tp> |
| _Tp* |
| function<_Rp(_A0)>::target() |
| { |
| if (__f_ == 0) |
| return (_Tp*)0; |
| return (_Tp*) const_cast<void *>(__f_->target(typeid(_Tp))); |
| } |
| |
| template<class _Rp, class _A0> |
| template <typename _Tp> |
| const _Tp* |
| function<_Rp(_A0)>::target() const |
| { |
| if (__f_ == 0) |
| return (const _Tp*)0; |
| return (const _Tp*)__f_->target(typeid(_Tp)); |
| } |
| |
| #endif // _LIBCPP_NO_RTTI |
| |
| template<class _Rp, class _A0, class _A1> |
| class _LIBCPP_TEMPLATE_VIS function<_Rp(_A0, _A1)> |
| : public binary_function<_A0, _A1, _Rp> |
| { |
| typedef __function::__base<_Rp(_A0, _A1)> __base; |
| aligned_storage<3*sizeof(void*)>::type __buf_; |
| __base* __f_; |
| |
| public: |
| typedef _Rp result_type; |
| |
| // 20.7.16.2.1, construct/copy/destroy: |
| _LIBCPP_INLINE_VISIBILITY explicit function() : __f_(0) {} |
| _LIBCPP_INLINE_VISIBILITY function(nullptr_t) : __f_(0) {} |
| function(const function&); |
| template<class _Fp> |
| function(_Fp, |
| typename enable_if<!is_integral<_Fp>::value>::type* = 0); |
| |
| template<class _Alloc> |
| _LIBCPP_INLINE_VISIBILITY |
| function(allocator_arg_t, const _Alloc&) : __f_(0) {} |
| template<class _Alloc> |
| _LIBCPP_INLINE_VISIBILITY |
| function(allocator_arg_t, const _Alloc&, nullptr_t) : __f_(0) {} |
| template<class _Alloc> |
| function(allocator_arg_t, const _Alloc&, const function&); |
| template<class _Fp, class _Alloc> |
| function(allocator_arg_t, const _Alloc& __a, _Fp __f, |
| typename enable_if<!is_integral<_Fp>::value>::type* = 0); |
| |
| function& operator=(const function&); |
| function& operator=(nullptr_t); |
| template<class _Fp> |
| typename enable_if |
| < |
| !is_integral<_Fp>::value, |
| function& |
| >::type |
| operator=(_Fp); |
| |
| ~function(); |
| |
| // 20.7.16.2.2, function modifiers: |
| void swap(function&); |
| template<class _Fp, class _Alloc> |
| _LIBCPP_INLINE_VISIBILITY |
| void assign(_Fp __f, const _Alloc& __a) |
| {function(allocator_arg, __a, __f).swap(*this);} |
| |
| // 20.7.16.2.3, function capacity: |
| operator bool() const {return __f_;} |
| |
| private: |
| // deleted overloads close possible hole in the type system |
| template<class _R2, class _B0, class _B1> |
| bool operator==(const function<_R2(_B0, _B1)>&) const;// = delete; |
| template<class _R2, class _B0, class _B1> |
| bool operator!=(const function<_R2(_B0, _B1)>&) const;// = delete; |
| public: |
| // 20.7.16.2.4, function invocation: |
| _Rp operator()(_A0, _A1) const; |
| |
| #ifndef _LIBCPP_NO_RTTI |
| // 20.7.16.2.5, function target access: |
| const std::type_info& target_type() const; |
| template <typename _Tp> _Tp* target(); |
| template <typename _Tp> const _Tp* target() const; |
| #endif // _LIBCPP_NO_RTTI |
| }; |
| |
| template<class _Rp, class _A0, class _A1> |
| function<_Rp(_A0, _A1)>::function(const function& __f) |
| { |
| if (__f.__f_ == 0) |
| __f_ = 0; |
| else if (__f.__f_ == (const __base*)&__f.__buf_) |
| { |
| __f_ = (__base*)&__buf_; |
| __f.__f_->__clone(__f_); |
| } |
| else |
| __f_ = __f.__f_->__clone(); |
| } |
| |
| template<class _Rp, class _A0, class _A1> |
| template<class _Alloc> |
| function<_Rp(_A0, _A1)>::function(allocator_arg_t, const _Alloc&, const function& __f) |
| { |
| if (__f.__f_ == 0) |
| __f_ = 0; |
| else if (__f.__f_ == (const __base*)&__f.__buf_) |
| { |
| __f_ = (__base*)&__buf_; |
| __f.__f_->__clone(__f_); |
| } |
| else |
| __f_ = __f.__f_->__clone(); |
| } |
| |
| template<class _Rp, class _A0, class _A1> |
| template <class _Fp> |
| function<_Rp(_A0, _A1)>::function(_Fp __f, |
| typename enable_if<!is_integral<_Fp>::value>::type*) |
| : __f_(0) |
| { |
| if (__function::__not_null(__f)) |
| { |
| typedef __function::__func<_Fp, allocator<_Fp>, _Rp(_A0, _A1)> _FF; |
| if (sizeof(_FF) <= sizeof(__buf_)) |
| { |
| __f_ = (__base*)&__buf_; |
| ::new (__f_) _FF(__f); |
| } |
| else |
| { |
| typedef allocator<_FF> _Ap; |
| _Ap __a; |
| typedef __allocator_destructor<_Ap> _Dp; |
| unique_ptr<__base, _Dp> __hold(__a.allocate(1), _Dp(__a, 1)); |
| ::new (__hold.get()) _FF(__f, allocator<_Fp>(__a)); |
| __f_ = __hold.release(); |
| } |
| } |
| } |
| |
| template<class _Rp, class _A0, class _A1> |
| template <class _Fp, class _Alloc> |
| function<_Rp(_A0, _A1)>::function(allocator_arg_t, const _Alloc& __a0, _Fp __f, |
| typename enable_if<!is_integral<_Fp>::value>::type*) |
| : __f_(0) |
| { |
| typedef allocator_traits<_Alloc> __alloc_traits; |
| if (__function::__not_null(__f)) |
| { |
| typedef __function::__func<_Fp, _Alloc, _Rp(_A0, _A1)> _FF; |
| if (sizeof(_FF) <= sizeof(__buf_)) |
| { |
| __f_ = (__base*)&__buf_; |
| ::new (__f_) _FF(__f, __a0); |
| } |
| else |
| { |
| typedef typename __rebind_alloc_helper<__alloc_traits, _FF>::type _Ap; |
| _Ap __a(__a0); |
| typedef __allocator_destructor<_Ap> _Dp; |
| unique_ptr<__base, _Dp> __hold(__a.allocate(1), _Dp(__a, 1)); |
| ::new (__hold.get()) _FF(__f, _Alloc(__a)); |
| __f_ = __hold.release(); |
| } |
| } |
| } |
| |
| template<class _Rp, class _A0, class _A1> |
| function<_Rp(_A0, _A1)>& |
| function<_Rp(_A0, _A1)>::operator=(const function& __f) |
| { |
| if (__f) |
| function(__f).swap(*this); |
| else |
| *this = nullptr; |
| return *this; |
| } |
| |
| template<class _Rp, class _A0, class _A1> |
| function<_Rp(_A0, _A1)>& |
| function<_Rp(_A0, _A1)>::operator=(nullptr_t) |
| { |
| __base* __t = __f_; |
| __f_ = 0; |
| if (__t == (__base*)&__buf_) |
| __t->destroy(); |
| else if (__t) |
| __t->destroy_deallocate(); |
| return *this; |
| } |
| |
| template<class _Rp, class _A0, class _A1> |
| template <class _Fp> |
| typename enable_if |
| < |
| !is_integral<_Fp>::value, |
| function<_Rp(_A0, _A1)>& |
| >::type |
| function<_Rp(_A0, _A1)>::operator=(_Fp __f) |
| { |
| function(_VSTD::move(__f)).swap(*this); |
| return *this; |
| } |
| |
| template<class _Rp, class _A0, class _A1> |
| function<_Rp(_A0, _A1)>::~function() |
| { |
| if (__f_ == (__base*)&__buf_) |
| __f_->destroy(); |
| else if (__f_) |
| __f_->destroy_deallocate(); |
| } |
| |
| template<class _Rp, class _A0, class _A1> |
| void |
| function<_Rp(_A0, _A1)>::swap(function& __f) |
| { |
| if (_VSTD::addressof(__f) == this) |
| return; |
| if (__f_ == (__base*)&__buf_ && __f.__f_ == (__base*)&__f.__buf_) |
| { |
| typename aligned_storage<sizeof(__buf_)>::type __tempbuf; |
| __base* __t = (__base*)&__tempbuf; |
| __f_->__clone(__t); |
| __f_->destroy(); |
| __f_ = 0; |
| __f.__f_->__clone((__base*)&__buf_); |
| __f.__f_->destroy(); |
| __f.__f_ = 0; |
| __f_ = (__base*)&__buf_; |
| __t->__clone((__base*)&__f.__buf_); |
| __t->destroy(); |
| __f.__f_ = (__base*)&__f.__buf_; |
| } |
| else if (__f_ == (__base*)&__buf_) |
| { |
| __f_->__clone((__base*)&__f.__buf_); |
| __f_->destroy(); |
| __f_ = __f.__f_; |
| __f.__f_ = (__base*)&__f.__buf_; |
| } |
| else if (__f.__f_ == (__base*)&__f.__buf_) |
| { |
| __f.__f_->__clone((__base*)&__buf_); |
| __f.__f_->destroy(); |
| __f.__f_ = __f_; |
| __f_ = (__base*)&__buf_; |
| } |
| else |
| _VSTD::swap(__f_, __f.__f_); |
| } |
| |
| template<class _Rp, class _A0, class _A1> |
| _Rp |
| function<_Rp(_A0, _A1)>::operator()(_A0 __a0, _A1 __a1) const |
| { |
| if (__f_ == 0) |
| __throw_bad_function_call(); |
| return (*__f_)(__a0, __a1); |
| } |
| |
| #ifndef _LIBCPP_NO_RTTI |
| |
| template<class _Rp, class _A0, class _A1> |
| const std::type_info& |
| function<_Rp(_A0, _A1)>::target_type() const |
| { |
| if (__f_ == 0) |
| return typeid(void); |
| return __f_->target_type(); |
| } |
| |
| template<class _Rp, class _A0, class _A1> |
| template <typename _Tp> |
| _Tp* |
| function<_Rp(_A0, _A1)>::target() |
| { |
| if (__f_ == 0) |
| return (_Tp*)0; |
| return (_Tp*) const_cast<void *>(__f_->target(typeid(_Tp))); |
| } |
| |
| template<class _Rp, class _A0, class _A1> |
| template <typename _Tp> |
| const _Tp* |
| function<_Rp(_A0, _A1)>::target() const |
| { |
| if (__f_ == 0) |
| return (const _Tp*)0; |
| return (const _Tp*)__f_->target(typeid(_Tp)); |
| } |
| |
| #endif // _LIBCPP_NO_RTTI |
| |
| template<class _Rp, class _A0, class _A1, class _A2> |
| class _LIBCPP_TEMPLATE_VIS function<_Rp(_A0, _A1, _A2)> |
| { |
| typedef __function::__base<_Rp(_A0, _A1, _A2)> __base; |
| aligned_storage<3*sizeof(void*)>::type __buf_; |
| __base* __f_; |
| |
| public: |
| typedef _Rp result_type; |
| |
| // 20.7.16.2.1, construct/copy/destroy: |
| _LIBCPP_INLINE_VISIBILITY explicit function() : __f_(0) {} |
| _LIBCPP_INLINE_VISIBILITY function(nullptr_t) : __f_(0) {} |
| function(const function&); |
| template<class _Fp> |
| function(_Fp, |
| typename enable_if<!is_integral<_Fp>::value>::type* = 0); |
| |
| template<class _Alloc> |
| _LIBCPP_INLINE_VISIBILITY |
| function(allocator_arg_t, const _Alloc&) : __f_(0) {} |
| template<class _Alloc> |
| _LIBCPP_INLINE_VISIBILITY |
| function(allocator_arg_t, const _Alloc&, nullptr_t) : __f_(0) {} |
| template<class _Alloc> |
| function(allocator_arg_t, const _Alloc&, const function&); |
| template<class _Fp, class _Alloc> |
| function(allocator_arg_t, const _Alloc& __a, _Fp __f, |
| typename enable_if<!is_integral<_Fp>::value>::type* = 0); |
| |
| function& operator=(const function&); |
| function& operator=(nullptr_t); |
| template<class _Fp> |
| typename enable_if |
| < |
| !is_integral<_Fp>::value, |
| function& |
| >::type |
| operator=(_Fp); |
| |
| ~function(); |
| |
| // 20.7.16.2.2, function modifiers: |
| void swap(function&); |
| template<class _Fp, class _Alloc> |
| _LIBCPP_INLINE_VISIBILITY |
| void assign(_Fp __f, const _Alloc& __a) |
| {function(allocator_arg, __a, __f).swap(*this);} |
| |
| // 20.7.16.2.3, function capacity: |
| _LIBCPP_INLINE_VISIBILITY operator bool() const {return __f_;} |
| |
| private: |
| // deleted overloads close possible hole in the type system |
| template<class _R2, class _B0, class _B1, class _B2> |
| bool operator==(const function<_R2(_B0, _B1, _B2)>&) const;// = delete; |
| template<class _R2, class _B0, class _B1, class _B2> |
| bool operator!=(const function<_R2(_B0, _B1, _B2)>&) const;// = delete; |
| public: |
| // 20.7.16.2.4, function invocation: |
| _Rp operator()(_A0, _A1, _A2) const; |
| |
| #ifndef _LIBCPP_NO_RTTI |
| // 20.7.16.2.5, function target access: |
| const std::type_info& target_type() const; |
| template <typename _Tp> _Tp* target(); |
| template <typename _Tp> const _Tp* target() const; |
| #endif // _LIBCPP_NO_RTTI |
| }; |
| |
| template<class _Rp, class _A0, class _A1, class _A2> |
| function<_Rp(_A0, _A1, _A2)>::function(const function& __f) |
| { |
| if (__f.__f_ == 0) |
| __f_ = 0; |
| else if (__f.__f_ == (const __base*)&__f.__buf_) |
| { |
| __f_ = (__base*)&__buf_; |
| __f.__f_->__clone(__f_); |
| } |
| else |
| __f_ = __f.__f_->__clone(); |
| } |
| |
| template<class _Rp, class _A0, class _A1, class _A2> |
| template<class _Alloc> |
| function<_Rp(_A0, _A1, _A2)>::function(allocator_arg_t, const _Alloc&, |
| const function& __f) |
| { |
| if (__f.__f_ == 0) |
| __f_ = 0; |
| else if (__f.__f_ == (const __base*)&__f.__buf_) |
| { |
| __f_ = (__base*)&__buf_; |
| __f.__f_->__clone(__f_); |
| } |
| else |
| __f_ = __f.__f_->__clone(); |
| } |
| |
| template<class _Rp, class _A0, class _A1, class _A2> |
| template <class _Fp> |
| function<_Rp(_A0, _A1, _A2)>::function(_Fp __f, |
| typename enable_if<!is_integral<_Fp>::value>::type*) |
| : __f_(0) |
| { |
| if (__function::__not_null(__f)) |
| { |
| typedef __function::__func<_Fp, allocator<_Fp>, _Rp(_A0, _A1, _A2)> _FF; |
| if (sizeof(_FF) <= sizeof(__buf_)) |
| { |
| __f_ = (__base*)&__buf_; |
| ::new (__f_) _FF(__f); |
| } |
| else |
| { |
| typedef allocator<_FF> _Ap; |
| _Ap __a; |
| typedef __allocator_destructor<_Ap> _Dp; |
| unique_ptr<__base, _Dp> __hold(__a.allocate(1), _Dp(__a, 1)); |
| ::new (__hold.get()) _FF(__f, allocator<_Fp>(__a)); |
| __f_ = __hold.release(); |
| } |
| } |
| } |
| |
| template<class _Rp, class _A0, class _A1, class _A2> |
| template <class _Fp, class _Alloc> |
| function<_Rp(_A0, _A1, _A2)>::function(allocator_arg_t, const _Alloc& __a0, _Fp __f, |
| typename enable_if<!is_integral<_Fp>::value>::type*) |
| : __f_(0) |
| { |
| typedef allocator_traits<_Alloc> __alloc_traits; |
| if (__function::__not_null(__f)) |
| { |
| typedef __function::__func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)> _FF; |
| if (sizeof(_FF) <= sizeof(__buf_)) |
| { |
| __f_ = (__base*)&__buf_; |
| ::new (__f_) _FF(__f, __a0); |
| } |
| else |
| { |
| typedef typename __rebind_alloc_helper<__alloc_traits, _FF>::type _Ap; |
| _Ap __a(__a0); |
| typedef __allocator_destructor<_Ap> _Dp; |
| unique_ptr<__base, _Dp> __hold(__a.allocate(1), _Dp(__a, 1)); |
| ::new (__hold.get()) _FF(__f, _Alloc(__a)); |
| __f_ = __hold.release(); |
| } |
| } |
| } |
| |
| template<class _Rp, class _A0, class _A1, class _A2> |
| function<_Rp(_A0, _A1, _A2)>& |
| function<_Rp(_A0, _A1, _A2)>::operator=(const function& __f) |
| { |
| if (__f) |
| function(__f).swap(*this); |
| else |
| *this = nullptr; |
| return *this; |
| } |
| |
| template<class _Rp, class _A0, class _A1, class _A2> |
| function<_Rp(_A0, _A1, _A2)>& |
| function<_Rp(_A0, _A1, _A2)>::operator=(nullptr_t) |
| { |
| __base* __t = __f_; |
| __f_ = 0; |
| if (__t == (__base*)&__buf_) |
| __t->destroy(); |
| else if (__t) |
| __t->destroy_deallocate(); |
| return *this; |
| } |
| |
| template<class _Rp, class _A0, class _A1, class _A2> |
| template <class _Fp> |
| typename enable_if |
| < |
| !is_integral<_Fp>::value, |
| function<_Rp(_A0, _A1, _A2)>& |
| >::type |
| function<_Rp(_A0, _A1, _A2)>::operator=(_Fp __f) |
| { |
| function(_VSTD::move(__f)).swap(*this); |
| return *this; |
| } |
| |
| template<class _Rp, class _A0, class _A1, class _A2> |
| function<_Rp(_A0, _A1, _A2)>::~function() |
| { |
| if (__f_ == (__base*)&__buf_) |
| __f_->destroy(); |
| else if (__f_) |
| __f_->destroy_deallocate(); |
| } |
| |
| template<class _Rp, class _A0, class _A1, class _A2> |
| void |
| function<_Rp(_A0, _A1, _A2)>::swap(function& __f) |
| { |
| if (_VSTD::addressof(__f) == this) |
| return; |
| if (__f_ == (__base*)&__buf_ && __f.__f_ == (__base*)&__f.__buf_) |
| { |
| typename aligned_storage<sizeof(__buf_)>::type __tempbuf; |
| __base* __t = (__base*)&__tempbuf; |
| __f_->__clone(__t); |
| __f_->destroy(); |
| __f_ = 0; |
| __f.__f_->__clone((__base*)&__buf_); |
| __f.__f_->destroy(); |
| __f.__f_ = 0; |
| __f_ = (__base*)&__buf_; |
| __t->__clone((__base*)&__f.__buf_); |
| __t->destroy(); |
| __f.__f_ = (__base*)&__f.__buf_; |
| } |
| else if (__f_ == (__base*)&__buf_) |
| { |
| __f_->__clone((__base*)&__f.__buf_); |
| __f_->destroy(); |
| __f_ = __f.__f_; |
| __f.__f_ = (__base*)&__f.__buf_; |
| } |
| else if (__f.__f_ == (__base*)&__f.__buf_) |
| { |
| __f.__f_->__clone((__base*)&__buf_); |
| __f.__f_->destroy(); |
| __f.__f_ = __f_; |
| __f_ = (__base*)&__buf_; |
| } |
| else |
| _VSTD::swap(__f_, __f.__f_); |
| } |
| |
| template<class _Rp, class _A0, class _A1, class _A2> |
| _Rp |
| function<_Rp(_A0, _A1, _A2)>::operator()(_A0 __a0, _A1 __a1, _A2 __a2) const |
| { |
| if (__f_ == 0) |
| __throw_bad_function_call(); |
| return (*__f_)(__a0, __a1, __a2); |
| } |
| |
| #ifndef _LIBCPP_NO_RTTI |
| |
| template<class _Rp, class _A0, class _A1, class _A2> |
| const std::type_info& |
| function<_Rp(_A0, _A1, _A2)>::target_type() const |
| { |
| if (__f_ == 0) |
| return typeid(void); |
| return __f_->target_type(); |
| } |
| |
| template<class _Rp, class _A0, class _A1, class _A2> |
| template <typename _Tp> |
| _Tp* |
| function<_Rp(_A0, _A1, _A2)>::target() |
| { |
| if (__f_ == 0) |
| return (_Tp*)0; |
| return (_Tp*) const_cast<void *>(__f_->target(typeid(_Tp))); |
| } |
| |
| template<class _Rp, class _A0, class _A1, class _A2> |
| template <typename _Tp> |
| const _Tp* |
| function<_Rp(_A0, _A1, _A2)>::target() const |
| { |
| if (__f_ == 0) |
| return (const _Tp*)0; |
| return (const _Tp*)__f_->target(typeid(_Tp)); |
| } |
| |
| #endif // _LIBCPP_NO_RTTI |
| |
| template <class _Fp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator==(const function<_Fp>& __f, nullptr_t) {return !__f;} |
| |
| template <class _Fp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator==(nullptr_t, const function<_Fp>& __f) {return !__f;} |
| |
| template <class _Fp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator!=(const function<_Fp>& __f, nullptr_t) {return (bool)__f;} |
| |
| template <class _Fp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator!=(nullptr_t, const function<_Fp>& __f) {return (bool)__f;} |
| |
| template <class _Fp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| void |
| swap(function<_Fp>& __x, function<_Fp>& __y) |
| {return __x.swap(__y);} |
| |
| #endif // _LIBCPP_FUNCTIONAL_03 |