blob: 9616480611dce0e4c2156cb19fdb597ffcb08365 [file] [log] [blame]
// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_FUNCTIONAL_03
#define _LIBCPP_FUNCTIONAL_03
// manual variadic expansion for <functional>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
namespace __function {
template<class _Fp> class __base;
template<class _Rp>
class __base<_Rp()>
{
__base(const __base&);
__base& operator=(const __base&);
public:
__base() {}
virtual ~__base() {}
virtual __base* __clone() const = 0;
virtual void __clone(__base*) const = 0;
virtual void destroy() = 0;
virtual void destroy_deallocate() = 0;
virtual _Rp operator()() = 0;
#ifndef _LIBCPP_NO_RTTI
virtual const void* target(const type_info&) const = 0;
virtual const std::type_info& target_type() const = 0;
#endif // _LIBCPP_NO_RTTI
};
template<class _Rp, class _A0>
class __base<_Rp(_A0)>
{
__base(const __base&);
__base& operator=(const __base&);
public:
__base() {}
virtual ~__base() {}
virtual __base* __clone() const = 0;
virtual void __clone(__base*) const = 0;
virtual void destroy() = 0;
virtual void destroy_deallocate() = 0;
virtual _Rp operator()(_A0) = 0;
#ifndef _LIBCPP_NO_RTTI
virtual const void* target(const type_info&) const = 0;
virtual const std::type_info& target_type() const = 0;
#endif // _LIBCPP_NO_RTTI
};
template<class _Rp, class _A0, class _A1>
class __base<_Rp(_A0, _A1)>
{
__base(const __base&);
__base& operator=(const __base&);
public:
__base() {}
virtual ~__base() {}
virtual __base* __clone() const = 0;
virtual void __clone(__base*) const = 0;
virtual void destroy() = 0;
virtual void destroy_deallocate() = 0;
virtual _Rp operator()(_A0, _A1) = 0;
#ifndef _LIBCPP_NO_RTTI
virtual const void* target(const type_info&) const = 0;
virtual const std::type_info& target_type() const = 0;
#endif // _LIBCPP_NO_RTTI
};
template<class _Rp, class _A0, class _A1, class _A2>
class __base<_Rp(_A0, _A1, _A2)>
{
__base(const __base&);
__base& operator=(const __base&);
public:
__base() {}
virtual ~__base() {}
virtual __base* __clone() const = 0;
virtual void __clone(__base*) const = 0;
virtual void destroy() = 0;
virtual void destroy_deallocate() = 0;
virtual _Rp operator()(_A0, _A1, _A2) = 0;
#ifndef _LIBCPP_NO_RTTI
virtual const void* target(const type_info&) const = 0;
virtual const std::type_info& target_type() const = 0;
#endif // _LIBCPP_NO_RTTI
};
template<class _FD, class _Alloc, class _FB> class __func;
template<class _Fp, class _Alloc, class _Rp>
class __func<_Fp, _Alloc, _Rp()>
: public __base<_Rp()>
{
__compressed_pair<_Fp, _Alloc> __f_;
public:
explicit __func(_Fp __f) : __f_(_VSTD::move(__f), __default_init_tag()) {}
explicit __func(_Fp __f, _Alloc __a) : __f_(_VSTD::move(__f), _VSTD::move(__a)) {}
virtual __base<_Rp()>* __clone() const;
virtual void __clone(__base<_Rp()>*) const;
virtual void destroy();
virtual void destroy_deallocate();
virtual _Rp operator()();
#ifndef _LIBCPP_NO_RTTI
virtual const void* target(const type_info&) const;
virtual const std::type_info& target_type() const;
#endif // _LIBCPP_NO_RTTI
};
template<class _Fp, class _Alloc, class _Rp>
__base<_Rp()>*
__func<_Fp, _Alloc, _Rp()>::__clone() const
{
typedef allocator_traits<_Alloc> __alloc_traits;
typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap;
_Ap __a(__f_.second());
typedef __allocator_destructor<_Ap> _Dp;
unique_ptr<__func, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
::new ((void*)__hold.get()) __func(__f_.first(), _Alloc(__a));
return __hold.release();
}
template<class _Fp, class _Alloc, class _Rp>
void
__func<_Fp, _Alloc, _Rp()>::__clone(__base<_Rp()>* __p) const
{
::new ((void*)__p) __func(__f_.first(), __f_.second());
}
template<class _Fp, class _Alloc, class _Rp>
void
__func<_Fp, _Alloc, _Rp()>::destroy()
{
__f_.~__compressed_pair<_Fp, _Alloc>();
}
template<class _Fp, class _Alloc, class _Rp>
void
__func<_Fp, _Alloc, _Rp()>::destroy_deallocate()
{
typedef allocator_traits<_Alloc> __alloc_traits;
typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap;
_Ap __a(__f_.second());
__f_.~__compressed_pair<_Fp, _Alloc>();
__a.deallocate(this, 1);
}
template<class _Fp, class _Alloc, class _Rp>
_Rp
__func<_Fp, _Alloc, _Rp()>::operator()()
{
typedef __invoke_void_return_wrapper<_Rp> _Invoker;
return _Invoker::__call(__f_.first());
}
#ifndef _LIBCPP_NO_RTTI
template<class _Fp, class _Alloc, class _Rp>
const void*
__func<_Fp, _Alloc, _Rp()>::target(const type_info& __ti) const
{
if (__ti == typeid(_Fp))
return &__f_.first();
return (const void*)0;
}
template<class _Fp, class _Alloc, class _Rp>
const std::type_info&
__func<_Fp, _Alloc, _Rp()>::target_type() const
{
return typeid(_Fp);
}
#endif // _LIBCPP_NO_RTTI
template<class _Fp, class _Alloc, class _Rp, class _A0>
class __func<_Fp, _Alloc, _Rp(_A0)>
: public __base<_Rp(_A0)>
{
__compressed_pair<_Fp, _Alloc> __f_;
public:
_LIBCPP_INLINE_VISIBILITY explicit __func(_Fp __f) : __f_(_VSTD::move(__f), __default_init_tag()) {}
_LIBCPP_INLINE_VISIBILITY explicit __func(_Fp __f, _Alloc __a)
: __f_(_VSTD::move(__f), _VSTD::move(__a)) {}
virtual __base<_Rp(_A0)>* __clone() const;
virtual void __clone(__base<_Rp(_A0)>*) const;
virtual void destroy();
virtual void destroy_deallocate();
virtual _Rp operator()(_A0);
#ifndef _LIBCPP_NO_RTTI
virtual const void* target(const type_info&) const;
virtual const std::type_info& target_type() const;
#endif // _LIBCPP_NO_RTTI
};
template<class _Fp, class _Alloc, class _Rp, class _A0>
__base<_Rp(_A0)>*
__func<_Fp, _Alloc, _Rp(_A0)>::__clone() const
{
typedef allocator_traits<_Alloc> __alloc_traits;
typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap;
_Ap __a(__f_.second());
typedef __allocator_destructor<_Ap> _Dp;
unique_ptr<__func, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
::new ((void*)__hold.get()) __func(__f_.first(), _Alloc(__a));
return __hold.release();
}
template<class _Fp, class _Alloc, class _Rp, class _A0>
void
__func<_Fp, _Alloc, _Rp(_A0)>::__clone(__base<_Rp(_A0)>* __p) const
{
::new ((void*)__p) __func(__f_.first(), __f_.second());
}
template<class _Fp, class _Alloc, class _Rp, class _A0>
void
__func<_Fp, _Alloc, _Rp(_A0)>::destroy()
{
__f_.~__compressed_pair<_Fp, _Alloc>();
}
template<class _Fp, class _Alloc, class _Rp, class _A0>
void
__func<_Fp, _Alloc, _Rp(_A0)>::destroy_deallocate()
{
typedef allocator_traits<_Alloc> __alloc_traits;
typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap;
_Ap __a(__f_.second());
__f_.~__compressed_pair<_Fp, _Alloc>();
__a.deallocate(this, 1);
}
template<class _Fp, class _Alloc, class _Rp, class _A0>
_Rp
__func<_Fp, _Alloc, _Rp(_A0)>::operator()(_A0 __a0)
{
typedef __invoke_void_return_wrapper<_Rp> _Invoker;
return _Invoker::__call(__f_.first(), __a0);
}
#ifndef _LIBCPP_NO_RTTI
template<class _Fp, class _Alloc, class _Rp, class _A0>
const void*
__func<_Fp, _Alloc, _Rp(_A0)>::target(const type_info& __ti) const
{
if (__ti == typeid(_Fp))
return &__f_.first();
return (const void*)0;
}
template<class _Fp, class _Alloc, class _Rp, class _A0>
const std::type_info&
__func<_Fp, _Alloc, _Rp(_A0)>::target_type() const
{
return typeid(_Fp);
}
#endif // _LIBCPP_NO_RTTI
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1>
class __func<_Fp, _Alloc, _Rp(_A0, _A1)>
: public __base<_Rp(_A0, _A1)>
{
__compressed_pair<_Fp, _Alloc> __f_;
public:
_LIBCPP_INLINE_VISIBILITY explicit __func(_Fp __f) : __f_(_VSTD::move(__f), __default_init_tag()) {}
_LIBCPP_INLINE_VISIBILITY explicit __func(_Fp __f, _Alloc __a)
: __f_(_VSTD::move(__f), _VSTD::move(__a)) {}
virtual __base<_Rp(_A0, _A1)>* __clone() const;
virtual void __clone(__base<_Rp(_A0, _A1)>*) const;
virtual void destroy();
virtual void destroy_deallocate();
virtual _Rp operator()(_A0, _A1);
#ifndef _LIBCPP_NO_RTTI
virtual const void* target(const type_info&) const;
virtual const std::type_info& target_type() const;
#endif // _LIBCPP_NO_RTTI
};
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1>
__base<_Rp(_A0, _A1)>*
__func<_Fp, _Alloc, _Rp(_A0, _A1)>::__clone() const
{
typedef allocator_traits<_Alloc> __alloc_traits;
typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap;
_Ap __a(__f_.second());
typedef __allocator_destructor<_Ap> _Dp;
unique_ptr<__func, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
::new ((void*)__hold.get()) __func(__f_.first(), _Alloc(__a));
return __hold.release();
}
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1>
void
__func<_Fp, _Alloc, _Rp(_A0, _A1)>::__clone(__base<_Rp(_A0, _A1)>* __p) const
{
::new ((void*)__p) __func(__f_.first(), __f_.second());
}
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1>
void
__func<_Fp, _Alloc, _Rp(_A0, _A1)>::destroy()
{
__f_.~__compressed_pair<_Fp, _Alloc>();
}
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1>
void
__func<_Fp, _Alloc, _Rp(_A0, _A1)>::destroy_deallocate()
{
typedef allocator_traits<_Alloc> __alloc_traits;
typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap;
_Ap __a(__f_.second());
__f_.~__compressed_pair<_Fp, _Alloc>();
__a.deallocate(this, 1);
}
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1>
_Rp
__func<_Fp, _Alloc, _Rp(_A0, _A1)>::operator()(_A0 __a0, _A1 __a1)
{
typedef __invoke_void_return_wrapper<_Rp> _Invoker;
return _Invoker::__call(__f_.first(), __a0, __a1);
}
#ifndef _LIBCPP_NO_RTTI
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1>
const void*
__func<_Fp, _Alloc, _Rp(_A0, _A1)>::target(const type_info& __ti) const
{
if (__ti == typeid(_Fp))
return &__f_.first();
return (const void*)0;
}
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1>
const std::type_info&
__func<_Fp, _Alloc, _Rp(_A0, _A1)>::target_type() const
{
return typeid(_Fp);
}
#endif // _LIBCPP_NO_RTTI
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2>
class __func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>
: public __base<_Rp(_A0, _A1, _A2)>
{
__compressed_pair<_Fp, _Alloc> __f_;
public:
_LIBCPP_INLINE_VISIBILITY explicit __func(_Fp __f) : __f_(_VSTD::move(__f), __default_init_tag()) {}
_LIBCPP_INLINE_VISIBILITY explicit __func(_Fp __f, _Alloc __a)
: __f_(_VSTD::move(__f), _VSTD::move(__a)) {}
virtual __base<_Rp(_A0, _A1, _A2)>* __clone() const;
virtual void __clone(__base<_Rp(_A0, _A1, _A2)>*) const;
virtual void destroy();
virtual void destroy_deallocate();
virtual _Rp operator()(_A0, _A1, _A2);
#ifndef _LIBCPP_NO_RTTI
virtual const void* target(const type_info&) const;
virtual const std::type_info& target_type() const;
#endif // _LIBCPP_NO_RTTI
};
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2>
__base<_Rp(_A0, _A1, _A2)>*
__func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::__clone() const
{
typedef allocator_traits<_Alloc> __alloc_traits;
typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap;
_Ap __a(__f_.second());
typedef __allocator_destructor<_Ap> _Dp;
unique_ptr<__func, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
::new ((void*)__hold.get()) __func(__f_.first(), _Alloc(__a));
return __hold.release();
}
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2>
void
__func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::__clone(__base<_Rp(_A0, _A1, _A2)>* __p) const
{
::new ((void*)__p) __func(__f_.first(), __f_.second());
}
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2>
void
__func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::destroy()
{
__f_.~__compressed_pair<_Fp, _Alloc>();
}
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2>
void
__func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::destroy_deallocate()
{
typedef allocator_traits<_Alloc> __alloc_traits;
typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap;
_Ap __a(__f_.second());
__f_.~__compressed_pair<_Fp, _Alloc>();
__a.deallocate(this, 1);
}
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2>
_Rp
__func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::operator()(_A0 __a0, _A1 __a1, _A2 __a2)
{
typedef __invoke_void_return_wrapper<_Rp> _Invoker;
return _Invoker::__call(__f_.first(), __a0, __a1, __a2);
}
#ifndef _LIBCPP_NO_RTTI
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2>
const void*
__func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::target(const type_info& __ti) const
{
if (__ti == typeid(_Fp))
return &__f_.first();
return (const void*)0;
}
template<class _Fp, class _Alloc, class _Rp, class _A0, class _A1, class _A2>
const std::type_info&
__func<_Fp, _Alloc, _Rp(_A0, _A1, _A2)>::target_type() const
{
return typeid(_Fp);
}
#endif // _LIBCPP_NO_RTTI
} // __function
template<class _Rp>
class _LIBCPP_TEMPLATE_VIS function<_Rp()>
{
typedef __function::__base<_Rp()> __base;
aligned_storage<3*sizeof(void*)>::type __buf_;
__base* __f_;
public:
typedef _Rp result_type;
// 20.7.16.2.1, construct/copy/destroy:
_LIBCPP_INLINE_VISIBILITY explicit function() : __f_(0) {}
_LIBCPP_INLINE_VISIBILITY function(nullptr_t) : __f_(0) {}
function(const function&);
template<class _Fp>
function(_Fp,
typename enable_if<!is_integral<_Fp>::value>::type* = 0);
template<class _Alloc>
_LIBCPP_INLINE_VISIBILITY
function(allocator_arg_t, const _Alloc&) : __f_(0) {}
template<class _Alloc>
_LIBCPP_INLINE_VISIBILITY
function(allocator_arg_t, const _Alloc&, nullptr_t) : __f_(0) {}
template<class _Alloc>
function(allocator_arg_t, const _Alloc&, const function&);
template<class _Fp, class _Alloc>
function(allocator_arg_t, const _Alloc& __a, _Fp __f,
typename enable_if<!is_integral<_Fp>::value>::type* = 0);
function& operator=(const function&);
function& operator=(nullptr_t);
template<class _Fp>
typename enable_if
<
!is_integral<_Fp>::value,
function&
>::type
operator=(_Fp);
~function();
// 20.7.16.2.2, function modifiers:
void swap(function&);
template<class _Fp, class _Alloc>
_LIBCPP_INLINE_VISIBILITY
void assign(_Fp __f, const _Alloc& __a)
{function(allocator_arg, __a, __f).swap(*this);}
// 20.7.16.2.3, function capacity:
_LIBCPP_INLINE_VISIBILITY operator bool() const {return __f_;}
private:
// deleted overloads close possible hole in the type system
template<class _R2>
bool operator==(const function<_R2()>&) const;// = delete;
template<class _R2>
bool operator!=(const function<_R2()>&) const;// = delete;
public:
// 20.7.16.2.4, function invocation:
_Rp operator()() const;
#ifndef _LIBCPP_NO_RTTI
// 20.7.16.2.5, function target access:
const std::type_info& target_type() const;
template <typename _Tp> _Tp* target();
template <typename _Tp> const _Tp* target() const;
#endif // _LIBCPP_NO_RTTI
};
template<class _Rp>
function<_Rp()>::function(const function& __f)
{
if (__f.__f_ == 0)
__f_ = 0;
else if (__f.__f_ == (const __base*)&__f.__buf_)
{
__f_ = (__base*)&__buf_;
__f.__f_->__clone(__f_);
}
else
__f_ = __f.__f_->__clone();
}
template<class _Rp>
template<class _Alloc>
function<_Rp()>::function(allocator_arg_t, const _Alloc&, const function& __f)
{
if (__f.__f_ == 0)
__f_ = 0;
else if (__f.__f_ == (const __base*)&__f.__buf_)
{
__f_ = (__base*)&__buf_;
__f.__f_->__clone(__f_);
}
else
__f_ = __f.__f_->__clone();
}
template<class _Rp>
template <class _Fp>
function<_Rp()>::function(_Fp __f,
typename enable_if<!is_integral<_Fp>::value>::type*)
: __f_(0)
{
if (__function::__not_null(__f))
{
typedef __function::__func<_Fp, allocator<_Fp>, _Rp()> _FF;
if (sizeof(_FF) <= sizeof(__buf_))
{
__f_ = (__base*)&__buf_;
::new ((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<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 ((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<class _Rp>
function<_Rp()>&
function<_Rp()>::operator=(const function& __f)
{
if (__f)
function(__f).swap(*this);
else
*this = nullptr;
return *this;
}
template<class _Rp>
function<_Rp()>&
function<_Rp()>::operator=(nullptr_t)
{
__base* __t = __f_;
__f_ = 0;
if (__t == (__base*)&__buf_)
__t->destroy();
else if (__t)
__t->destroy_deallocate();
return *this;
}
template<class _Rp>
template <class _Fp>
typename enable_if
<
!is_integral<_Fp>::value,
function<_Rp()>&
>::type
function<_Rp()>::operator=(_Fp __f)
{
function(_VSTD::move(__f)).swap(*this);
return *this;
}
template<class _Rp>
function<_Rp()>::~function()
{
if (__f_ == (__base*)&__buf_)
__f_->destroy();
else if (__f_)
__f_->destroy_deallocate();
}
template<class _Rp>
void
function<_Rp()>::swap(function& __f)
{
if (_VSTD::addressof(__f) == this)
return;
if (__f_ == (__base*)&__buf_ && __f.__f_ == (__base*)&__f.__buf_)
{
typename aligned_storage<sizeof(__buf_)>::type __tempbuf;
__base* __t = (__base*)&__tempbuf;
__f_->__clone(__t);
__f_->destroy();
__f_ = 0;
__f.__f_->__clone((__base*)&__buf_);
__f.__f_->destroy();
__f.__f_ = 0;
__f_ = (__base*)&__buf_;
__t->__clone((__base*)&__f.__buf_);
__t->destroy();
__f.__f_ = (__base*)&__f.__buf_;
}
else if (__f_ == (__base*)&__buf_)
{
__f_->__clone((__base*)&__f.__buf_);
__f_->destroy();
__f_ = __f.__f_;
__f.__f_ = (__base*)&__f.__buf_;
}
else if (__f.__f_ == (__base*)&__f.__buf_)
{
__f.__f_->__clone((__base*)&__buf_);
__f.__f_->destroy();
__f.__f_ = __f_;
__f_ = (__base*)&__buf_;
}
else
_VSTD::swap(__f_, __f.__f_);
}
template<class _Rp>
_Rp
function<_Rp()>::operator()() const
{
if (__f_ == 0)
__throw_bad_function_call();
return (*__f_)();
}
#ifndef _LIBCPP_NO_RTTI
template<class _Rp>
const std::type_info&
function<_Rp()>::target_type() const
{
if (__f_ == 0)
return typeid(void);
return __f_->target_type();
}
template<class _Rp>
template <typename _Tp>
_Tp*
function<_Rp()>::target()
{
if (__f_ == 0)
return (_Tp*)0;
return (_Tp*) const_cast<void *>(__f_->target(typeid(_Tp)));
}
template<class _Rp>
template <typename _Tp>
const _Tp*
function<_Rp()>::target() const
{
if (__f_ == 0)
return (const _Tp*)0;
return (const _Tp*)__f_->target(typeid(_Tp));
}
#endif // _LIBCPP_NO_RTTI
template<class _Rp, class _A0>
class _LIBCPP_TEMPLATE_VIS function<_Rp(_A0)>
: public unary_function<_A0, _Rp>
{
typedef __function::__base<_Rp(_A0)> __base;
aligned_storage<3*sizeof(void*)>::type __buf_;
__base* __f_;
public:
typedef _Rp result_type;
// 20.7.16.2.1, construct/copy/destroy:
_LIBCPP_INLINE_VISIBILITY explicit function() : __f_(0) {}
_LIBCPP_INLINE_VISIBILITY function(nullptr_t) : __f_(0) {}
function(const function&);
template<class _Fp>
function(_Fp,
typename enable_if<!is_integral<_Fp>::value>::type* = 0);
template<class _Alloc>
_LIBCPP_INLINE_VISIBILITY
function(allocator_arg_t, const _Alloc&) : __f_(0) {}
template<class _Alloc>
_LIBCPP_INLINE_VISIBILITY
function(allocator_arg_t, const _Alloc&, nullptr_t) : __f_(0) {}
template<class _Alloc>
function(allocator_arg_t, const _Alloc&, const function&);
template<class _Fp, class _Alloc>
function(allocator_arg_t, const _Alloc& __a, _Fp __f,
typename enable_if<!is_integral<_Fp>::value>::type* = 0);
function& operator=(const function&);
function& operator=(nullptr_t);
template<class _Fp>
typename enable_if
<
!is_integral<_Fp>::value,
function&
>::type
operator=(_Fp);
~function();
// 20.7.16.2.2, function modifiers:
void swap(function&);
template<class _Fp, class _Alloc>
_LIBCPP_INLINE_VISIBILITY
void assign(_Fp __f, const _Alloc& __a)
{function(allocator_arg, __a, __f).swap(*this);}
// 20.7.16.2.3, function capacity:
_LIBCPP_INLINE_VISIBILITY operator bool() const {return __f_;}
private:
// deleted overloads close possible hole in the type system
template<class _R2, class _B0>
bool operator==(const function<_R2(_B0)>&) const;// = delete;
template<class _R2, class _B0>
bool operator!=(const function<_R2(_B0)>&) const;// = delete;
public:
// 20.7.16.2.4, function invocation:
_Rp operator()(_A0) const;
#ifndef _LIBCPP_NO_RTTI
// 20.7.16.2.5, function target access:
const std::type_info& target_type() const;
template <typename _Tp> _Tp* target();
template <typename _Tp> const _Tp* target() const;
#endif // _LIBCPP_NO_RTTI
};
template<class _Rp, class _A0>
function<_Rp(_A0)>::function(const function& __f)
{
if (__f.__f_ == 0)
__f_ = 0;
else if (__f.__f_ == (const __base*)&__f.__buf_)
{
__f_ = (__base*)&__buf_;
__f.__f_->__clone(__f_);
}
else
__f_ = __f.__f_->__clone();
}
template<class _Rp, class _A0>
template<class _Alloc>
function<_Rp(_A0)>::function(allocator_arg_t, const _Alloc&, const function& __f)
{
if (__f.__f_ == 0)
__f_ = 0;
else if (__f.__f_ == (const __base*)&__f.__buf_)
{
__f_ = (__base*)&__buf_;
__f.__f_->__clone(__f_);
}
else
__f_ = __f.__f_->__clone();
}
template<class _Rp, class _A0>
template <class _Fp>
function<_Rp(_A0)>::function(_Fp __f,
typename enable_if<!is_integral<_Fp>::value>::type*)
: __f_(0)
{
if (__function::__not_null(__f))
{
typedef __function::__func<_Fp, allocator<_Fp>, _Rp(_A0)> _FF;
if (sizeof(_FF) <= sizeof(__buf_))
{
__f_ = (__base*)&__buf_;
::new ((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<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 ((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<class _Rp, class _A0>
function<_Rp(_A0)>&
function<_Rp(_A0)>::operator=(const function& __f)
{
if (__f)
function(__f).swap(*this);
else
*this = nullptr;
return *this;
}
template<class _Rp, class _A0>
function<_Rp(_A0)>&
function<_Rp(_A0)>::operator=(nullptr_t)
{
__base* __t = __f_;
__f_ = 0;
if (__t == (__base*)&__buf_)
__t->destroy();
else if (__t)
__t->destroy_deallocate();
return *this;
}
template<class _Rp, class _A0>
template <class _Fp>
typename enable_if
<
!is_integral<_Fp>::value,
function<_Rp(_A0)>&
>::type
function<_Rp(_A0)>::operator=(_Fp __f)
{
function(_VSTD::move(__f)).swap(*this);
return *this;
}
template<class _Rp, class _A0>
function<_Rp(_A0)>::~function()
{
if (__f_ == (__base*)&__buf_)
__f_->destroy();
else if (__f_)
__f_->destroy_deallocate();
}
template<class _Rp, class _A0>
void
function<_Rp(_A0)>::swap(function& __f)
{
if (_VSTD::addressof(__f) == this)
return;
if (__f_ == (__base*)&__buf_ && __f.__f_ == (__base*)&__f.__buf_)
{
typename aligned_storage<sizeof(__buf_)>::type __tempbuf;
__base* __t = (__base*)&__tempbuf;
__f_->__clone(__t);
__f_->destroy();
__f_ = 0;
__f.__f_->__clone((__base*)&__buf_);
__f.__f_->destroy();
__f.__f_ = 0;
__f_ = (__base*)&__buf_;
__t->__clone((__base*)&__f.__buf_);
__t->destroy();
__f.__f_ = (__base*)&__f.__buf_;
}
else if (__f_ == (__base*)&__buf_)
{
__f_->__clone((__base*)&__f.__buf_);
__f_->destroy();
__f_ = __f.__f_;
__f.__f_ = (__base*)&__f.__buf_;
}
else if (__f.__f_ == (__base*)&__f.__buf_)
{
__f.__f_->__clone((__base*)&__buf_);
__f.__f_->destroy();
__f.__f_ = __f_;
__f_ = (__base*)&__buf_;
}
else
_VSTD::swap(__f_, __f.__f_);
}
template<class _Rp, class _A0>
_Rp
function<_Rp(_A0)>::operator()(_A0 __a0) const
{
if (__f_ == 0)
__throw_bad_function_call();
return (*__f_)(__a0);
}
#ifndef _LIBCPP_NO_RTTI
template<class _Rp, class _A0>
const std::type_info&
function<_Rp(_A0)>::target_type() const
{
if (__f_ == 0)
return typeid(void);
return __f_->target_type();
}
template<class _Rp, class _A0>
template <typename _Tp>
_Tp*
function<_Rp(_A0)>::target()
{
if (__f_ == 0)
return (_Tp*)0;
return (_Tp*) const_cast<void *>(__f_->target(typeid(_Tp)));
}
template<class _Rp, class _A0>
template <typename _Tp>
const _Tp*
function<_Rp(_A0)>::target() const
{
if (__f_ == 0)
return (const _Tp*)0;
return (const _Tp*)__f_->target(typeid(_Tp));
}
#endif // _LIBCPP_NO_RTTI
template<class _Rp, class _A0, class _A1>
class _LIBCPP_TEMPLATE_VIS function<_Rp(_A0, _A1)>
: public binary_function<_A0, _A1, _Rp>
{
typedef __function::__base<_Rp(_A0, _A1)> __base;
aligned_storage<3*sizeof(void*)>::type __buf_;
__base* __f_;
public:
typedef _Rp result_type;
// 20.7.16.2.1, construct/copy/destroy:
_LIBCPP_INLINE_VISIBILITY explicit function() : __f_(0) {}
_LIBCPP_INLINE_VISIBILITY function(nullptr_t) : __f_(0) {}
function(const function&);
template<class _Fp>
function(_Fp,
typename enable_if<!is_integral<_Fp>::value>::type* = 0);
template<class _Alloc>
_LIBCPP_INLINE_VISIBILITY
function(allocator_arg_t, const _Alloc&) : __f_(0) {}
template<class _Alloc>
_LIBCPP_INLINE_VISIBILITY
function(allocator_arg_t, const _Alloc&, nullptr_t) : __f_(0) {}
template<class _Alloc>
function(allocator_arg_t, const _Alloc&, const function&);
template<class _Fp, class _Alloc>
function(allocator_arg_t, const _Alloc& __a, _Fp __f,
typename enable_if<!is_integral<_Fp>::value>::type* = 0);
function& operator=(const function&);
function& operator=(nullptr_t);
template<class _Fp>
typename enable_if
<
!is_integral<_Fp>::value,
function&
>::type
operator=(_Fp);
~function();
// 20.7.16.2.2, function modifiers:
void swap(function&);
template<class _Fp, class _Alloc>
_LIBCPP_INLINE_VISIBILITY
void assign(_Fp __f, const _Alloc& __a)
{function(allocator_arg, __a, __f).swap(*this);}
// 20.7.16.2.3, function capacity:
operator bool() const {return __f_;}
private:
// deleted overloads close possible hole in the type system
template<class _R2, class _B0, class _B1>
bool operator==(const function<_R2(_B0, _B1)>&) const;// = delete;
template<class _R2, class _B0, class _B1>
bool operator!=(const function<_R2(_B0, _B1)>&) const;// = delete;
public:
// 20.7.16.2.4, function invocation:
_Rp operator()(_A0, _A1) const;
#ifndef _LIBCPP_NO_RTTI
// 20.7.16.2.5, function target access:
const std::type_info& target_type() const;
template <typename _Tp> _Tp* target();
template <typename _Tp> const _Tp* target() const;
#endif // _LIBCPP_NO_RTTI
};
template<class _Rp, class _A0, class _A1>
function<_Rp(_A0, _A1)>::function(const function& __f)
{
if (__f.__f_ == 0)
__f_ = 0;
else if (__f.__f_ == (const __base*)&__f.__buf_)
{
__f_ = (__base*)&__buf_;
__f.__f_->__clone(__f_);
}
else
__f_ = __f.__f_->__clone();
}
template<class _Rp, class _A0, class _A1>
template<class _Alloc>
function<_Rp(_A0, _A1)>::function(allocator_arg_t, const _Alloc&, const function& __f)
{
if (__f.__f_ == 0)
__f_ = 0;
else if (__f.__f_ == (const __base*)&__f.__buf_)
{
__f_ = (__base*)&__buf_;
__f.__f_->__clone(__f_);
}
else
__f_ = __f.__f_->__clone();
}
template<class _Rp, class _A0, class _A1>
template <class _Fp>
function<_Rp(_A0, _A1)>::function(_Fp __f,
typename enable_if<!is_integral<_Fp>::value>::type*)
: __f_(0)
{
if (__function::__not_null(__f))
{
typedef __function::__func<_Fp, allocator<_Fp>, _Rp(_A0, _A1)> _FF;
if (sizeof(_FF) <= sizeof(__buf_))
{
__f_ = (__base*)&__buf_;
::new ((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<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 ((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<class _Rp, class _A0, class _A1>
function<_Rp(_A0, _A1)>&
function<_Rp(_A0, _A1)>::operator=(const function& __f)
{
if (__f)
function(__f).swap(*this);
else
*this = nullptr;
return *this;
}
template<class _Rp, class _A0, class _A1>
function<_Rp(_A0, _A1)>&
function<_Rp(_A0, _A1)>::operator=(nullptr_t)
{
__base* __t = __f_;
__f_ = 0;
if (__t == (__base*)&__buf_)
__t->destroy();
else if (__t)
__t->destroy_deallocate();
return *this;
}
template<class _Rp, class _A0, class _A1>
template <class _Fp>
typename enable_if
<
!is_integral<_Fp>::value,
function<_Rp(_A0, _A1)>&
>::type
function<_Rp(_A0, _A1)>::operator=(_Fp __f)
{
function(_VSTD::move(__f)).swap(*this);
return *this;
}
template<class _Rp, class _A0, class _A1>
function<_Rp(_A0, _A1)>::~function()
{
if (__f_ == (__base*)&__buf_)
__f_->destroy();
else if (__f_)
__f_->destroy_deallocate();
}
template<class _Rp, class _A0, class _A1>
void
function<_Rp(_A0, _A1)>::swap(function& __f)
{
if (_VSTD::addressof(__f) == this)
return;
if (__f_ == (__base*)&__buf_ && __f.__f_ == (__base*)&__f.__buf_)
{
typename aligned_storage<sizeof(__buf_)>::type __tempbuf;
__base* __t = (__base*)&__tempbuf;
__f_->__clone(__t);
__f_->destroy();
__f_ = 0;
__f.__f_->__clone((__base*)&__buf_);
__f.__f_->destroy();
__f.__f_ = 0;
__f_ = (__base*)&__buf_;
__t->__clone((__base*)&__f.__buf_);
__t->destroy();
__f.__f_ = (__base*)&__f.__buf_;
}
else if (__f_ == (__base*)&__buf_)
{
__f_->__clone((__base*)&__f.__buf_);
__f_->destroy();
__f_ = __f.__f_;
__f.__f_ = (__base*)&__f.__buf_;
}
else if (__f.__f_ == (__base*)&__f.__buf_)
{
__f.__f_->__clone((__base*)&__buf_);
__f.__f_->destroy();
__f.__f_ = __f_;
__f_ = (__base*)&__buf_;
}
else
_VSTD::swap(__f_, __f.__f_);
}
template<class _Rp, class _A0, class _A1>
_Rp
function<_Rp(_A0, _A1)>::operator()(_A0 __a0, _A1 __a1) const
{
if (__f_ == 0)
__throw_bad_function_call();
return (*__f_)(__a0, __a1);
}
#ifndef _LIBCPP_NO_RTTI
template<class _Rp, class _A0, class _A1>
const std::type_info&
function<_Rp(_A0, _A1)>::target_type() const
{
if (__f_ == 0)
return typeid(void);
return __f_->target_type();
}
template<class _Rp, class _A0, class _A1>
template <typename _Tp>
_Tp*
function<_Rp(_A0, _A1)>::target()
{
if (__f_ == 0)
return (_Tp*)0;
return (_Tp*) const_cast<void *>(__f_->target(typeid(_Tp)));
}
template<class _Rp, class _A0, class _A1>
template <typename _Tp>
const _Tp*
function<_Rp(_A0, _A1)>::target() const
{
if (__f_ == 0)
return (const _Tp*)0;
return (const _Tp*)__f_->target(typeid(_Tp));
}
#endif // _LIBCPP_NO_RTTI
template<class _Rp, class _A0, class _A1, class _A2>
class _LIBCPP_TEMPLATE_VIS function<_Rp(_A0, _A1, _A2)>
{
typedef __function::__base<_Rp(_A0, _A1, _A2)> __base;
aligned_storage<3*sizeof(void*)>::type __buf_;
__base* __f_;
public:
typedef _Rp result_type;
// 20.7.16.2.1, construct/copy/destroy:
_LIBCPP_INLINE_VISIBILITY explicit function() : __f_(0) {}
_LIBCPP_INLINE_VISIBILITY function(nullptr_t) : __f_(0) {}
function(const function&);
template<class _Fp>
function(_Fp,
typename enable_if<!is_integral<_Fp>::value>::type* = 0);
template<class _Alloc>
_LIBCPP_INLINE_VISIBILITY
function(allocator_arg_t, const _Alloc&) : __f_(0) {}
template<class _Alloc>
_LIBCPP_INLINE_VISIBILITY
function(allocator_arg_t, const _Alloc&, nullptr_t) : __f_(0) {}
template<class _Alloc>
function(allocator_arg_t, const _Alloc&, const function&);
template<class _Fp, class _Alloc>
function(allocator_arg_t, const _Alloc& __a, _Fp __f,
typename enable_if<!is_integral<_Fp>::value>::type* = 0);
function& operator=(const function&);
function& operator=(nullptr_t);
template<class _Fp>
typename enable_if
<
!is_integral<_Fp>::value,
function&
>::type
operator=(_Fp);
~function();
// 20.7.16.2.2, function modifiers:
void swap(function&);
template<class _Fp, class _Alloc>
_LIBCPP_INLINE_VISIBILITY
void assign(_Fp __f, const _Alloc& __a)
{function(allocator_arg, __a, __f).swap(*this);}
// 20.7.16.2.3, function capacity:
_LIBCPP_INLINE_VISIBILITY operator bool() const {return __f_;}
private:
// deleted overloads close possible hole in the type system
template<class _R2, class _B0, class _B1, class _B2>
bool operator==(const function<_R2(_B0, _B1, _B2)>&) const;// = delete;
template<class _R2, class _B0, class _B1, class _B2>
bool operator!=(const function<_R2(_B0, _B1, _B2)>&) const;// = delete;
public:
// 20.7.16.2.4, function invocation:
_Rp operator()(_A0, _A1, _A2) const;
#ifndef _LIBCPP_NO_RTTI
// 20.7.16.2.5, function target access:
const std::type_info& target_type() const;
template <typename _Tp> _Tp* target();
template <typename _Tp> const _Tp* target() const;
#endif // _LIBCPP_NO_RTTI
};
template<class _Rp, class _A0, class _A1, class _A2>
function<_Rp(_A0, _A1, _A2)>::function(const function& __f)
{
if (__f.__f_ == 0)
__f_ = 0;
else if (__f.__f_ == (const __base*)&__f.__buf_)
{
__f_ = (__base*)&__buf_;
__f.__f_->__clone(__f_);
}
else
__f_ = __f.__f_->__clone();
}
template<class _Rp, class _A0, class _A1, class _A2>
template<class _Alloc>
function<_Rp(_A0, _A1, _A2)>::function(allocator_arg_t, const _Alloc&,
const function& __f)
{
if (__f.__f_ == 0)
__f_ = 0;
else if (__f.__f_ == (const __base*)&__f.__buf_)
{
__f_ = (__base*)&__buf_;
__f.__f_->__clone(__f_);
}
else
__f_ = __f.__f_->__clone();
}
template<class _Rp, class _A0, class _A1, class _A2>
template <class _Fp>
function<_Rp(_A0, _A1, _A2)>::function(_Fp __f,
typename enable_if<!is_integral<_Fp>::value>::type*)
: __f_(0)
{
if (__function::__not_null(__f))
{
typedef __function::__func<_Fp, allocator<_Fp>, _Rp(_A0, _A1, _A2)> _FF;
if (sizeof(_FF) <= sizeof(__buf_))
{
__f_ = (__base*)&__buf_;
::new ((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<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 ((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<class _Rp, class _A0, class _A1, class _A2>
function<_Rp(_A0, _A1, _A2)>&
function<_Rp(_A0, _A1, _A2)>::operator=(const function& __f)
{
if (__f)
function(__f).swap(*this);
else
*this = nullptr;
return *this;
}
template<class _Rp, class _A0, class _A1, class _A2>
function<_Rp(_A0, _A1, _A2)>&
function<_Rp(_A0, _A1, _A2)>::operator=(nullptr_t)
{
__base* __t = __f_;
__f_ = 0;
if (__t == (__base*)&__buf_)
__t->destroy();
else if (__t)
__t->destroy_deallocate();
return *this;
}
template<class _Rp, class _A0, class _A1, class _A2>
template <class _Fp>
typename enable_if
<
!is_integral<_Fp>::value,
function<_Rp(_A0, _A1, _A2)>&
>::type
function<_Rp(_A0, _A1, _A2)>::operator=(_Fp __f)
{
function(_VSTD::move(__f)).swap(*this);
return *this;
}
template<class _Rp, class _A0, class _A1, class _A2>
function<_Rp(_A0, _A1, _A2)>::~function()
{
if (__f_ == (__base*)&__buf_)
__f_->destroy();
else if (__f_)
__f_->destroy_deallocate();
}
template<class _Rp, class _A0, class _A1, class _A2>
void
function<_Rp(_A0, _A1, _A2)>::swap(function& __f)
{
if (_VSTD::addressof(__f) == this)
return;
if (__f_ == (__base*)&__buf_ && __f.__f_ == (__base*)&__f.__buf_)
{
typename aligned_storage<sizeof(__buf_)>::type __tempbuf;
__base* __t = (__base*)&__tempbuf;
__f_->__clone(__t);
__f_->destroy();
__f_ = 0;
__f.__f_->__clone((__base*)&__buf_);
__f.__f_->destroy();
__f.__f_ = 0;
__f_ = (__base*)&__buf_;
__t->__clone((__base*)&__f.__buf_);
__t->destroy();
__f.__f_ = (__base*)&__f.__buf_;
}
else if (__f_ == (__base*)&__buf_)
{
__f_->__clone((__base*)&__f.__buf_);
__f_->destroy();
__f_ = __f.__f_;
__f.__f_ = (__base*)&__f.__buf_;
}
else if (__f.__f_ == (__base*)&__f.__buf_)
{
__f.__f_->__clone((__base*)&__buf_);
__f.__f_->destroy();
__f.__f_ = __f_;
__f_ = (__base*)&__buf_;
}
else
_VSTD::swap(__f_, __f.__f_);
}
template<class _Rp, class _A0, class _A1, class _A2>
_Rp
function<_Rp(_A0, _A1, _A2)>::operator()(_A0 __a0, _A1 __a1, _A2 __a2) const
{
if (__f_ == 0)
__throw_bad_function_call();
return (*__f_)(__a0, __a1, __a2);
}
#ifndef _LIBCPP_NO_RTTI
template<class _Rp, class _A0, class _A1, class _A2>
const std::type_info&
function<_Rp(_A0, _A1, _A2)>::target_type() const
{
if (__f_ == 0)
return typeid(void);
return __f_->target_type();
}
template<class _Rp, class _A0, class _A1, class _A2>
template <typename _Tp>
_Tp*
function<_Rp(_A0, _A1, _A2)>::target()
{
if (__f_ == 0)
return (_Tp*)0;
return (_Tp*) const_cast<void *>(__f_->target(typeid(_Tp)));
}
template<class _Rp, class _A0, class _A1, class _A2>
template <typename _Tp>
const _Tp*
function<_Rp(_A0, _A1, _A2)>::target() const
{
if (__f_ == 0)
return (const _Tp*)0;
return (const _Tp*)__f_->target(typeid(_Tp));
}
#endif // _LIBCPP_NO_RTTI
template <class _Fp>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const function<_Fp>& __f, nullptr_t) {return !__f;}
template <class _Fp>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(nullptr_t, const function<_Fp>& __f) {return !__f;}
template <class _Fp>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const function<_Fp>& __f, nullptr_t) {return (bool)__f;}
template <class _Fp>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(nullptr_t, const function<_Fp>& __f) {return (bool)__f;}
template <class _Fp>
inline _LIBCPP_INLINE_VISIBILITY
void
swap(function<_Fp>& __x, function<_Fp>& __y)
{return __x.swap(__y);}
#endif // _LIBCPP_FUNCTIONAL_03