1577 lines
43 KiB
C++
1577 lines
43 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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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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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_FUNCTIONAL_03
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#define _LIBCPP_FUNCTIONAL_03
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// manual variadic expansion for <functional>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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#pragma GCC system_header
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#endif
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namespace __function {
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template<class _Fp> class __base;
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template<class _Rp>
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class __base<_Rp()>
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{
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__base(const __base&);
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__base& operator=(const __base&);
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public:
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__base() {}
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virtual ~__base() {}
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virtual __base* __clone() const = 0;
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virtual void __clone(__base*) const = 0;
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virtual void destroy() = 0;
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virtual void destroy_deallocate() = 0;
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virtual _Rp operator()() = 0;
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#ifndef _LIBCPP_NO_RTTI
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virtual const void* target(const type_info&) const = 0;
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virtual const std::type_info& target_type() const = 0;
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#endif // _LIBCPP_NO_RTTI
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};
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template<class _Rp, class _A0>
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class __base<_Rp(_A0)>
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{
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__base(const __base&);
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__base& operator=(const __base&);
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public:
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__base() {}
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virtual ~__base() {}
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virtual __base* __clone() const = 0;
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virtual void __clone(__base*) const = 0;
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virtual void destroy() = 0;
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virtual void destroy_deallocate() = 0;
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virtual _Rp operator()(_A0) = 0;
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#ifndef _LIBCPP_NO_RTTI
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virtual const void* target(const type_info&) const = 0;
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virtual const std::type_info& target_type() const = 0;
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#endif // _LIBCPP_NO_RTTI
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};
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template<class _Rp, class _A0, class _A1>
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class __base<_Rp(_A0, _A1)>
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{
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__base(const __base&);
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__base& operator=(const __base&);
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public:
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__base() {}
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virtual ~__base() {}
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virtual __base* __clone() const = 0;
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virtual void __clone(__base*) const = 0;
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virtual void destroy() = 0;
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virtual void destroy_deallocate() = 0;
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virtual _Rp operator()(_A0, _A1) = 0;
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#ifndef _LIBCPP_NO_RTTI
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virtual const void* target(const type_info&) const = 0;
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virtual const std::type_info& target_type() const = 0;
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#endif // _LIBCPP_NO_RTTI
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};
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template<class _Rp, class _A0, class _A1, class _A2>
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class __base<_Rp(_A0, _A1, _A2)>
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{
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__base(const __base&);
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__base& operator=(const __base&);
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public:
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__base() {}
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virtual ~__base() {}
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virtual __base* __clone() const = 0;
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virtual void __clone(__base*) const = 0;
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virtual void destroy() = 0;
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virtual void destroy_deallocate() = 0;
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virtual _Rp operator()(_A0, _A1, _A2) = 0;
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#ifndef _LIBCPP_NO_RTTI
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virtual const void* target(const type_info&) const = 0;
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virtual const std::type_info& target_type() const = 0;
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#endif // _LIBCPP_NO_RTTI
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};
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template<class _FD, class _Alloc, class _FB> class __func;
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template<class _Fp, class _Alloc, class _Rp>
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class __func<_Fp, _Alloc, _Rp()>
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: public __base<_Rp()>
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{
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__compressed_pair<_Fp, _Alloc> __f_;
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public:
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explicit __func(_Fp __f) : __f_(_VSTD::move(__f)) {}
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explicit __func(_Fp __f, _Alloc __a) : __f_(_VSTD::move(__f), _VSTD::move(__a)) {}
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virtual __base<_Rp()>* __clone() const;
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virtual void __clone(__base<_Rp()>*) const;
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virtual void destroy();
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virtual void destroy_deallocate();
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virtual _Rp operator()();
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#ifndef _LIBCPP_NO_RTTI
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virtual const void* target(const type_info&) const;
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virtual const std::type_info& target_type() const;
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#endif // _LIBCPP_NO_RTTI
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};
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template<class _Fp, class _Alloc, class _Rp>
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__base<_Rp()>*
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__func<_Fp, _Alloc, _Rp()>::__clone() const
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{
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typedef allocator_traits<_Alloc> __alloc_traits;
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typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap;
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_Ap __a(__f_.second());
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typedef __allocator_destructor<_Ap> _Dp;
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unique_ptr<__func, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
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::new (__hold.get()) __func(__f_.first(), _Alloc(__a));
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return __hold.release();
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}
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template<class _Fp, class _Alloc, class _Rp>
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void
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__func<_Fp, _Alloc, _Rp()>::__clone(__base<_Rp()>* __p) const
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{
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::new (__p) __func(__f_.first(), __f_.second());
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}
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template<class _Fp, class _Alloc, class _Rp>
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void
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__func<_Fp, _Alloc, _Rp()>::destroy()
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{
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__f_.~__compressed_pair<_Fp, _Alloc>();
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}
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template<class _Fp, class _Alloc, class _Rp>
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void
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__func<_Fp, _Alloc, _Rp()>::destroy_deallocate()
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{
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typedef allocator_traits<_Alloc> __alloc_traits;
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typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap;
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_Ap __a(__f_.second());
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__f_.~__compressed_pair<_Fp, _Alloc>();
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__a.deallocate(this, 1);
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}
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template<class _Fp, class _Alloc, class _Rp>
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_Rp
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__func<_Fp, _Alloc, _Rp()>::operator()()
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{
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typedef __invoke_void_return_wrapper<_Rp> _Invoker;
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return _Invoker::__call(__f_.first());
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}
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#ifndef _LIBCPP_NO_RTTI
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template<class _Fp, class _Alloc, class _Rp>
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const void*
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__func<_Fp, _Alloc, _Rp()>::target(const type_info& __ti) const
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{
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if (__ti == typeid(_Fp))
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return &__f_.first();
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return (const void*)0;
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}
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template<class _Fp, class _Alloc, class _Rp>
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const std::type_info&
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__func<_Fp, _Alloc, _Rp()>::target_type() const
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{
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return typeid(_Fp);
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}
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#endif // _LIBCPP_NO_RTTI
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template<class _Fp, class _Alloc, class _Rp, class _A0>
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class __func<_Fp, _Alloc, _Rp(_A0)>
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: public __base<_Rp(_A0)>
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{
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__compressed_pair<_Fp, _Alloc> __f_;
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public:
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_LIBCPP_INLINE_VISIBILITY explicit __func(_Fp __f) : __f_(_VSTD::move(__f)) {}
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_LIBCPP_INLINE_VISIBILITY explicit __func(_Fp __f, _Alloc __a)
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: __f_(_VSTD::move(__f), _VSTD::move(__a)) {}
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virtual __base<_Rp(_A0)>* __clone() const;
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virtual void __clone(__base<_Rp(_A0)>*) const;
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virtual void destroy();
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virtual void destroy_deallocate();
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virtual _Rp operator()(_A0);
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#ifndef _LIBCPP_NO_RTTI
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virtual const void* target(const type_info&) const;
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virtual const std::type_info& target_type() const;
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#endif // _LIBCPP_NO_RTTI
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};
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template<class _Fp, class _Alloc, class _Rp, class _A0>
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__base<_Rp(_A0)>*
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__func<_Fp, _Alloc, _Rp(_A0)>::__clone() const
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{
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typedef allocator_traits<_Alloc> __alloc_traits;
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typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap;
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_Ap __a(__f_.second());
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typedef __allocator_destructor<_Ap> _Dp;
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unique_ptr<__func, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
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::new (__hold.get()) __func(__f_.first(), _Alloc(__a));
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return __hold.release();
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}
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template<class _Fp, class _Alloc, class _Rp, class _A0>
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void
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__func<_Fp, _Alloc, _Rp(_A0)>::__clone(__base<_Rp(_A0)>* __p) const
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{
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::new (__p) __func(__f_.first(), __f_.second());
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}
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template<class _Fp, class _Alloc, class _Rp, class _A0>
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void
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__func<_Fp, _Alloc, _Rp(_A0)>::destroy()
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{
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__f_.~__compressed_pair<_Fp, _Alloc>();
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}
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template<class _Fp, class _Alloc, class _Rp, class _A0>
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void
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__func<_Fp, _Alloc, _Rp(_A0)>::destroy_deallocate()
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{
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typedef allocator_traits<_Alloc> __alloc_traits;
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typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap;
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_Ap __a(__f_.second());
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__f_.~__compressed_pair<_Fp, _Alloc>();
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__a.deallocate(this, 1);
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}
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template<class _Fp, class _Alloc, class _Rp, class _A0>
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_Rp
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__func<_Fp, _Alloc, _Rp(_A0)>::operator()(_A0 __a0)
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{
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typedef __invoke_void_return_wrapper<_Rp> _Invoker;
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return _Invoker::__call(__f_.first(), __a0);
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}
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#ifndef _LIBCPP_NO_RTTI
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template<class _Fp, class _Alloc, class _Rp, class _A0>
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const void*
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__func<_Fp, _Alloc, _Rp(_A0)>::target(const type_info& __ti) const
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{
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if (__ti == typeid(_Fp))
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return &__f_.first();
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return (const void*)0;
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}
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template<class _Fp, class _Alloc, class _Rp, class _A0>
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const std::type_info&
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__func<_Fp, _Alloc, _Rp(_A0)>::target_type() const
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{
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return typeid(_Fp);
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}
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#endif // _LIBCPP_NO_RTTI
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template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1>
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class __func<_Fp, _Alloc, _Rp(_A0, _A1)>
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: public __base<_Rp(_A0, _A1)>
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{
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__compressed_pair<_Fp, _Alloc> __f_;
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public:
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_LIBCPP_INLINE_VISIBILITY explicit __func(_Fp __f) : __f_(_VSTD::move(__f)) {}
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_LIBCPP_INLINE_VISIBILITY explicit __func(_Fp __f, _Alloc __a)
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: __f_(_VSTD::move(__f), _VSTD::move(__a)) {}
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virtual __base<_Rp(_A0, _A1)>* __clone() const;
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virtual void __clone(__base<_Rp(_A0, _A1)>*) const;
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virtual void destroy();
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virtual void destroy_deallocate();
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virtual _Rp operator()(_A0, _A1);
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#ifndef _LIBCPP_NO_RTTI
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virtual const void* target(const type_info&) const;
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virtual const std::type_info& target_type() const;
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#endif // _LIBCPP_NO_RTTI
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};
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template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1>
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__base<_Rp(_A0, _A1)>*
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__func<_Fp, _Alloc, _Rp(_A0, _A1)>::__clone() const
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{
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typedef allocator_traits<_Alloc> __alloc_traits;
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typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap;
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_Ap __a(__f_.second());
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typedef __allocator_destructor<_Ap> _Dp;
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unique_ptr<__func, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
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::new (__hold.get()) __func(__f_.first(), _Alloc(__a));
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return __hold.release();
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}
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template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1>
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void
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__func<_Fp, _Alloc, _Rp(_A0, _A1)>::__clone(__base<_Rp(_A0, _A1)>* __p) const
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{
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::new (__p) __func(__f_.first(), __f_.second());
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}
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template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1>
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void
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__func<_Fp, _Alloc, _Rp(_A0, _A1)>::destroy()
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{
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__f_.~__compressed_pair<_Fp, _Alloc>();
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}
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template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1>
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void
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__func<_Fp, _Alloc, _Rp(_A0, _A1)>::destroy_deallocate()
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{
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typedef allocator_traits<_Alloc> __alloc_traits;
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typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap;
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_Ap __a(__f_.second());
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__f_.~__compressed_pair<_Fp, _Alloc>();
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__a.deallocate(this, 1);
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}
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template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1>
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_Rp
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__func<_Fp, _Alloc, _Rp(_A0, _A1)>::operator()(_A0 __a0, _A1 __a1)
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{
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typedef __invoke_void_return_wrapper<_Rp> _Invoker;
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return _Invoker::__call(__f_.first(), __a0, __a1);
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}
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#ifndef _LIBCPP_NO_RTTI
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template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1>
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const void*
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__func<_Fp, _Alloc, _Rp(_A0, _A1)>::target(const type_info& __ti) const
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{
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if (__ti == typeid(_Fp))
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return &__f_.first();
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return (const void*)0;
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}
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template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1>
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const std::type_info&
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__func<_Fp, _Alloc, _Rp(_A0, _A1)>::target_type() const
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{
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return typeid(_Fp);
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}
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#endif // _LIBCPP_NO_RTTI
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template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2>
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class __func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>
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: public __base<_Rp(_A0, _A1, _A2)>
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{
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__compressed_pair<_Fp, _Alloc> __f_;
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public:
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_LIBCPP_INLINE_VISIBILITY explicit __func(_Fp __f) : __f_(_VSTD::move(__f)) {}
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_LIBCPP_INLINE_VISIBILITY explicit __func(_Fp __f, _Alloc __a)
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: __f_(_VSTD::move(__f), _VSTD::move(__a)) {}
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virtual __base<_Rp(_A0, _A1, _A2)>* __clone() const;
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virtual void __clone(__base<_Rp(_A0, _A1, _A2)>*) const;
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virtual void destroy();
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virtual void destroy_deallocate();
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virtual _Rp operator()(_A0, _A1, _A2);
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#ifndef _LIBCPP_NO_RTTI
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virtual const void* target(const type_info&) const;
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virtual const std::type_info& target_type() const;
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#endif // _LIBCPP_NO_RTTI
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};
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template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2>
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__base<_Rp(_A0, _A1, _A2)>*
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__func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::__clone() const
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{
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typedef allocator_traits<_Alloc> __alloc_traits;
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typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap;
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_Ap __a(__f_.second());
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typedef __allocator_destructor<_Ap> _Dp;
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unique_ptr<__func, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
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::new (__hold.get()) __func(__f_.first(), _Alloc(__a));
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return __hold.release();
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}
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template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2>
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void
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__func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::__clone(__base<_Rp(_A0, _A1, _A2)>* __p) const
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{
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::new (__p) __func(__f_.first(), __f_.second());
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}
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template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2>
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void
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__func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::destroy()
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{
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__f_.~__compressed_pair<_Fp, _Alloc>();
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}
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template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2>
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void
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__func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::destroy_deallocate()
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{
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typedef allocator_traits<_Alloc> __alloc_traits;
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typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap;
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_Ap __a(__f_.second());
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__f_.~__compressed_pair<_Fp, _Alloc>();
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__a.deallocate(this, 1);
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}
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template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2>
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_Rp
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__func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::operator()(_A0 __a0, _A1 __a1, _A2 __a2)
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{
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typedef __invoke_void_return_wrapper<_Rp> _Invoker;
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return _Invoker::__call(__f_.first(), __a0, __a1, __a2);
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}
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#ifndef _LIBCPP_NO_RTTI
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template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2>
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const void*
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__func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::target(const type_info& __ti) const
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|
{
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if (__ti == typeid(_Fp))
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return &__f_.first();
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return (const void*)0;
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}
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template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2>
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const std::type_info&
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__func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::target_type() const
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|
{
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return typeid(_Fp);
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}
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#endif // _LIBCPP_NO_RTTI
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} // __function
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|
|
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)
|
|
{
|
|
function(__f).swap(*this);
|
|
return *this;
|
|
}
|
|
|
|
template<class _Rp>
|
|
function<_Rp()>&
|
|
function<_Rp()>::operator=(nullptr_t)
|
|
{
|
|
if (__f_ == (__base*)&__buf_)
|
|
__f_->destroy();
|
|
else if (__f_)
|
|
__f_->destroy_deallocate();
|
|
__f_ = 0;
|
|
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)
|
|
{
|
|
function(__f).swap(*this);
|
|
return *this;
|
|
}
|
|
|
|
template<class _Rp, class _A0>
|
|
function<_Rp(_A0)>&
|
|
function<_Rp(_A0)>::operator=(nullptr_t)
|
|
{
|
|
if (__f_ == (__base*)&__buf_)
|
|
__f_->destroy();
|
|
else if (__f_)
|
|
__f_->destroy_deallocate();
|
|
__f_ = 0;
|
|
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)
|
|
{
|
|
function(__f).swap(*this);
|
|
return *this;
|
|
}
|
|
|
|
template<class _Rp, class _A0, class _A1>
|
|
function<_Rp(_A0, _A1)>&
|
|
function<_Rp(_A0, _A1)>::operator=(nullptr_t)
|
|
{
|
|
if (__f_ == (__base*)&__buf_)
|
|
__f_->destroy();
|
|
else if (__f_)
|
|
__f_->destroy_deallocate();
|
|
__f_ = 0;
|
|
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)
|
|
{
|
|
function(__f).swap(*this);
|
|
return *this;
|
|
}
|
|
|
|
template<class _Rp, class _A0, class _A1, class _A2>
|
|
function<_Rp(_A0, _A1, _A2)>&
|
|
function<_Rp(_A0, _A1, _A2)>::operator=(nullptr_t)
|
|
{
|
|
if (__f_ == (__base*)&__buf_)
|
|
__f_->destroy();
|
|
else if (__f_)
|
|
__f_->destroy_deallocate();
|
|
__f_ = 0;
|
|
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
|