// -*- 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 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) #pragma GCC system_header #endif namespace __function { template class __base; template 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 __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 __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 __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 __func; template 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 __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 ((void*)__hold.get()) __func(__f_.first(), _Alloc(__a)); return __hold.release(); } template void __func<_Fp, _Alloc, _Rp()>::__clone(__base<_Rp()>* __p) const { ::new ((void*)__p) __func(__f_.first(), __f_.second()); } template void __func<_Fp, _Alloc, _Rp()>::destroy() { __f_.~__compressed_pair<_Fp, _Alloc>(); } template 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 _Rp __func<_Fp, _Alloc, _Rp()>::operator()() { typedef __invoke_void_return_wrapper<_Rp> _Invoker; return _Invoker::__call(__f_.first()); } #ifndef _LIBCPP_NO_RTTI template const void* __func<_Fp, _Alloc, _Rp()>::target(const type_info& __ti) const { if (__ti == typeid(_Fp)) return &__f_.first(); return (const void*)0; } template const std::type_info& __func<_Fp, _Alloc, _Rp()>::target_type() const { return typeid(_Fp); } #endif // _LIBCPP_NO_RTTI template 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 __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 ((void*)__hold.get()) __func(__f_.first(), _Alloc(__a)); return __hold.release(); } template void __func<_Fp, _Alloc, _Rp(_A0)>::__clone(__base<_Rp(_A0)>* __p) const { ::new ((void*)__p) __func(__f_.first(), __f_.second()); } template void __func<_Fp, _Alloc, _Rp(_A0)>::destroy() { __f_.~__compressed_pair<_Fp, _Alloc>(); } template 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 _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 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 const std::type_info& __func<_Fp, _Alloc, _Rp(_A0)>::target_type() const { return typeid(_Fp); } #endif // _LIBCPP_NO_RTTI template 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 __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 ((void*)__hold.get()) __func(__f_.first(), _Alloc(__a)); return __hold.release(); } template void __func<_Fp, _Alloc, _Rp(_A0, _A1)>::__clone(__base<_Rp(_A0, _A1)>* __p) const { ::new ((void*)__p) __func(__f_.first(), __f_.second()); } template void __func<_Fp, _Alloc, _Rp(_A0, _A1)>::destroy() { __f_.~__compressed_pair<_Fp, _Alloc>(); } template 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 _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 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 const std::type_info& __func<_Fp, _Alloc, _Rp(_A0, _A1)>::target_type() const { return typeid(_Fp); } #endif // _LIBCPP_NO_RTTI template 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 __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 ((void*)__hold.get()) __func(__f_.first(), _Alloc(__a)); return __hold.release(); } template void __func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::__clone(__base<_Rp(_A0, _A1, _A2)>* __p) const { ::new ((void*)__p) __func(__f_.first(), __f_.second()); } template void __func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::destroy() { __f_.~__compressed_pair<_Fp, _Alloc>(); } template 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 _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 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 const std::type_info& __func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::target_type() const { return typeid(_Fp); } #endif // _LIBCPP_NO_RTTI } // __function template 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 function(_Fp, typename enable_if::value>::type* = 0); template _LIBCPP_INLINE_VISIBILITY function(allocator_arg_t, const _Alloc&) : __f_(0) {} template _LIBCPP_INLINE_VISIBILITY function(allocator_arg_t, const _Alloc&, nullptr_t) : __f_(0) {} template function(allocator_arg_t, const _Alloc&, const function&); template function(allocator_arg_t, const _Alloc& __a, _Fp __f, typename enable_if::value>::type* = 0); function& operator=(const function&); function& operator=(nullptr_t); template typename enable_if < !is_integral<_Fp>::value, function& >::type operator=(_Fp); ~function(); // 20.7.16.2.2, function modifiers: void swap(function&); template _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 bool operator==(const function<_R2()>&) const;// = delete; template 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 _Tp* target(); template const _Tp* target() const; #endif // _LIBCPP_NO_RTTI }; template 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 template 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 template function<_Rp()>::function(_Fp __f, typename enable_if::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 ((void*)__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 ((void*)__hold.get()) _FF(__f, allocator<_Fp>(__a)); __f_ = __hold.release(); } } } template template function<_Rp()>::function(allocator_arg_t, const _Alloc& __a0, _Fp __f, typename enable_if::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 ((void*)__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 ((void*)__hold.get()) _FF(__f, _Alloc(__a)); __f_ = __hold.release(); } } } template function<_Rp()>& function<_Rp()>::operator=(const function& __f) { if (__f) function(__f).swap(*this); else *this = nullptr; return *this; } template 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 template typename enable_if < !is_integral<_Fp>::value, function<_Rp()>& >::type function<_Rp()>::operator=(_Fp __f) { function(_VSTD::move(__f)).swap(*this); return *this; } template function<_Rp()>::~function() { if (__f_ == (__base*)&__buf_) __f_->destroy(); else if (__f_) __f_->destroy_deallocate(); } template void function<_Rp()>::swap(function& __f) { if (_VSTD::addressof(__f) == this) return; if (__f_ == (__base*)&__buf_ && __f.__f_ == (__base*)&__f.__buf_) { typename aligned_storage::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 _Rp function<_Rp()>::operator()() const { if (__f_ == 0) __throw_bad_function_call(); return (*__f_)(); } #ifndef _LIBCPP_NO_RTTI template const std::type_info& function<_Rp()>::target_type() const { if (__f_ == 0) return typeid(void); return __f_->target_type(); } template template _Tp* function<_Rp()>::target() { if (__f_ == 0) return (_Tp*)0; return (_Tp*) const_cast(__f_->target(typeid(_Tp))); } template template 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 _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 function(_Fp, typename enable_if::value>::type* = 0); template _LIBCPP_INLINE_VISIBILITY function(allocator_arg_t, const _Alloc&) : __f_(0) {} template _LIBCPP_INLINE_VISIBILITY function(allocator_arg_t, const _Alloc&, nullptr_t) : __f_(0) {} template function(allocator_arg_t, const _Alloc&, const function&); template function(allocator_arg_t, const _Alloc& __a, _Fp __f, typename enable_if::value>::type* = 0); function& operator=(const function&); function& operator=(nullptr_t); template typename enable_if < !is_integral<_Fp>::value, function& >::type operator=(_Fp); ~function(); // 20.7.16.2.2, function modifiers: void swap(function&); template _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 bool operator==(const function<_R2(_B0)>&) const;// = delete; template 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 _Tp* target(); template const _Tp* target() const; #endif // _LIBCPP_NO_RTTI }; template 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 template 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 template function<_Rp(_A0)>::function(_Fp __f, typename enable_if::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 ((void*)__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 ((void*)__hold.get()) _FF(__f, allocator<_Fp>(__a)); __f_ = __hold.release(); } } } template template function<_Rp(_A0)>::function(allocator_arg_t, const _Alloc& __a0, _Fp __f, typename enable_if::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 ((void*)__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 ((void*)__hold.get()) _FF(__f, _Alloc(__a)); __f_ = __hold.release(); } } } template function<_Rp(_A0)>& function<_Rp(_A0)>::operator=(const function& __f) { if (__f) function(__f).swap(*this); else *this = nullptr; return *this; } template 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 template 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 function<_Rp(_A0)>::~function() { if (__f_ == (__base*)&__buf_) __f_->destroy(); else if (__f_) __f_->destroy_deallocate(); } template 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::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 _Rp function<_Rp(_A0)>::operator()(_A0 __a0) const { if (__f_ == 0) __throw_bad_function_call(); return (*__f_)(__a0); } #ifndef _LIBCPP_NO_RTTI template const std::type_info& function<_Rp(_A0)>::target_type() const { if (__f_ == 0) return typeid(void); return __f_->target_type(); } template template _Tp* function<_Rp(_A0)>::target() { if (__f_ == 0) return (_Tp*)0; return (_Tp*) const_cast(__f_->target(typeid(_Tp))); } template template 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 _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 function(_Fp, typename enable_if::value>::type* = 0); template _LIBCPP_INLINE_VISIBILITY function(allocator_arg_t, const _Alloc&) : __f_(0) {} template _LIBCPP_INLINE_VISIBILITY function(allocator_arg_t, const _Alloc&, nullptr_t) : __f_(0) {} template function(allocator_arg_t, const _Alloc&, const function&); template function(allocator_arg_t, const _Alloc& __a, _Fp __f, typename enable_if::value>::type* = 0); function& operator=(const function&); function& operator=(nullptr_t); template typename enable_if < !is_integral<_Fp>::value, function& >::type operator=(_Fp); ~function(); // 20.7.16.2.2, function modifiers: void swap(function&); template _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 bool operator==(const function<_R2(_B0, _B1)>&) const;// = delete; template 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 _Tp* target(); template const _Tp* target() const; #endif // _LIBCPP_NO_RTTI }; template 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 template 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 template function<_Rp(_A0, _A1)>::function(_Fp __f, typename enable_if::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 ((void*)__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 ((void*)__hold.get()) _FF(__f, allocator<_Fp>(__a)); __f_ = __hold.release(); } } } template template function<_Rp(_A0, _A1)>::function(allocator_arg_t, const _Alloc& __a0, _Fp __f, typename enable_if::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 ((void*)__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 ((void*)__hold.get()) _FF(__f, _Alloc(__a)); __f_ = __hold.release(); } } } template function<_Rp(_A0, _A1)>& function<_Rp(_A0, _A1)>::operator=(const function& __f) { if (__f) function(__f).swap(*this); else *this = nullptr; return *this; } template 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 template 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 function<_Rp(_A0, _A1)>::~function() { if (__f_ == (__base*)&__buf_) __f_->destroy(); else if (__f_) __f_->destroy_deallocate(); } template 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::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 _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 const std::type_info& function<_Rp(_A0, _A1)>::target_type() const { if (__f_ == 0) return typeid(void); return __f_->target_type(); } template template _Tp* function<_Rp(_A0, _A1)>::target() { if (__f_ == 0) return (_Tp*)0; return (_Tp*) const_cast(__f_->target(typeid(_Tp))); } template template 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 _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 function(_Fp, typename enable_if::value>::type* = 0); template _LIBCPP_INLINE_VISIBILITY function(allocator_arg_t, const _Alloc&) : __f_(0) {} template _LIBCPP_INLINE_VISIBILITY function(allocator_arg_t, const _Alloc&, nullptr_t) : __f_(0) {} template function(allocator_arg_t, const _Alloc&, const function&); template function(allocator_arg_t, const _Alloc& __a, _Fp __f, typename enable_if::value>::type* = 0); function& operator=(const function&); function& operator=(nullptr_t); template typename enable_if < !is_integral<_Fp>::value, function& >::type operator=(_Fp); ~function(); // 20.7.16.2.2, function modifiers: void swap(function&); template _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 bool operator==(const function<_R2(_B0, _B1, _B2)>&) const;// = delete; template 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 _Tp* target(); template const _Tp* target() const; #endif // _LIBCPP_NO_RTTI }; template 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 template 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 template function<_Rp(_A0, _A1, _A2)>::function(_Fp __f, typename enable_if::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 ((void*)__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 ((void*)__hold.get()) _FF(__f, allocator<_Fp>(__a)); __f_ = __hold.release(); } } } template template function<_Rp(_A0, _A1, _A2)>::function(allocator_arg_t, const _Alloc& __a0, _Fp __f, typename enable_if::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 ((void*)__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 ((void*)__hold.get()) _FF(__f, _Alloc(__a)); __f_ = __hold.release(); } } } template 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 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 template 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 function<_Rp(_A0, _A1, _A2)>::~function() { if (__f_ == (__base*)&__buf_) __f_->destroy(); else if (__f_) __f_->destroy_deallocate(); } template 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::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 _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 const std::type_info& function<_Rp(_A0, _A1, _A2)>::target_type() const { if (__f_ == 0) return typeid(void); return __f_->target_type(); } template template _Tp* function<_Rp(_A0, _A1, _A2)>::target() { if (__f_ == 0) return (_Tp*)0; return (_Tp*) const_cast(__f_->target(typeid(_Tp))); } template template 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 inline _LIBCPP_INLINE_VISIBILITY bool operator==(const function<_Fp>& __f, nullptr_t) {return !__f;} template inline _LIBCPP_INLINE_VISIBILITY bool operator==(nullptr_t, const function<_Fp>& __f) {return !__f;} template inline _LIBCPP_INLINE_VISIBILITY bool operator!=(const function<_Fp>& __f, nullptr_t) {return (bool)__f;} template inline _LIBCPP_INLINE_VISIBILITY bool operator!=(nullptr_t, const function<_Fp>& __f) {return (bool)__f;} template inline _LIBCPP_INLINE_VISIBILITY void swap(function<_Fp>& __x, function<_Fp>& __y) {return __x.swap(__y);} #endif // _LIBCPP_FUNCTIONAL_03