public:
typedef _Tp type;
- reference_wrapper(_Tp& __indata)
+ reference_wrapper(_Tp& __indata) noexcept
: _M_data(std::__addressof(__indata))
{ }
reference_wrapper(_Tp&&) = delete;
- reference_wrapper(const reference_wrapper<_Tp>& __inref):
- _M_data(__inref._M_data)
+ reference_wrapper(const reference_wrapper<_Tp>& __inref) noexcept
+ : _M_data(__inref._M_data)
{ }
reference_wrapper&
- operator=(const reference_wrapper<_Tp>& __inref)
+ operator=(const reference_wrapper<_Tp>& __inref) noexcept
{
_M_data = __inref._M_data;
return *this;
}
- operator _Tp&() const
+ operator _Tp&() const noexcept
{ return this->get(); }
_Tp&
- get() const
+ get() const noexcept
{ return *_M_data; }
template<typename... _Args>
/// Denotes a reference should be taken to a variable.
template<typename _Tp>
inline reference_wrapper<_Tp>
- ref(_Tp& __t)
+ ref(_Tp& __t) noexcept
{ return reference_wrapper<_Tp>(__t); }
/// Denotes a const reference should be taken to a variable.
template<typename _Tp>
inline reference_wrapper<const _Tp>
- cref(const _Tp& __t)
+ cref(const _Tp& __t) noexcept
{ return reference_wrapper<const _Tp>(__t); }
template<typename _Tp>
/// Partial specialization.
template<typename _Tp>
inline reference_wrapper<_Tp>
- ref(reference_wrapper<_Tp> __t)
+ ref(reference_wrapper<_Tp> __t) noexcept
{ return ref(__t.get()); }
/// Partial specialization.
template<typename _Tp>
inline reference_wrapper<const _Tp>
- cref(reference_wrapper<_Tp> __t)
+ cref(reference_wrapper<_Tp> __t) noexcept
{ return cref(__t.get()); }
// @} group functors
// Call as const
template<typename... _Args, typename _Result
- = decltype( std::declval<const _Functor>()(
+ = decltype( std::declval<typename enable_if<(sizeof...(_Args) >= 0),
+ typename add_const<_Functor>::type>::type>()(
_Mu<_Bound_args>()( std::declval<const _Bound_args&>(),
std::declval<tuple<_Args...>&>() )... ) )>
_Result
// Call as volatile
template<typename... _Args, typename _Result
- = decltype( std::declval<volatile _Functor>()(
+ = decltype( std::declval<typename enable_if<(sizeof...(_Args) >= 0),
+ typename add_volatile<_Functor>::type>::type>()(
_Mu<_Bound_args>()( std::declval<volatile _Bound_args&>(),
std::declval<tuple<_Args...>&>() )... ) )>
_Result
// Call as const volatile
template<typename... _Args, typename _Result
- = decltype( std::declval<const volatile _Functor>()(
+ = decltype( std::declval<typename enable_if<(sizeof...(_Args) >= 0),
+ typename add_cv<_Functor>::type>::type>()(
_Mu<_Bound_args>()( std::declval<const volatile _Bound_args&>(),
std::declval<tuple<_Args...>&>() )... ) )>
_Result
std::forward<_BoundArgs>(__args)...);
}
+ template<typename _Signature>
+ struct _Bind_simple;
+
+ template<typename _Callable, typename... _Args>
+ struct _Bind_simple<_Callable(_Args...)>
+ {
+ typedef typename result_of<_Callable(_Args...)>::type result_type;
+
+ template<typename... _Args2, typename = typename
+ enable_if< sizeof...(_Args) == sizeof...(_Args2)>::type>
+ explicit
+ _Bind_simple(const _Callable& __callable, _Args2&&... __args)
+ : _M_bound(__callable, std::forward<_Args2>(__args)...)
+ { }
+
+ template<typename... _Args2, typename = typename
+ enable_if< sizeof...(_Args) == sizeof...(_Args2)>::type>
+ explicit
+ _Bind_simple(_Callable&& __callable, _Args2&&... __args)
+ : _M_bound(std::move(__callable), std::forward<_Args2>(__args)...)
+ { }
+
+ _Bind_simple(const _Bind_simple&) = default;
+ _Bind_simple(_Bind_simple&&) = default;
+
+ result_type
+ operator()()
+ {
+ typedef typename _Build_index_tuple<sizeof...(_Args)>::__type _Indices;
+ return _M_invoke(_Indices());
+ }
+
+ private:
+
+ template<int... _Indices>
+ typename result_of<_Callable(_Args...)>::type
+ _M_invoke(_Index_tuple<_Indices...>)
+ {
+ // std::bind always forwards bound arguments as lvalues,
+ // but this type can call functions which only accept rvalues.
+ return std::forward<_Callable>(std::get<0>(_M_bound))(
+ std::forward<_Args>(std::get<_Indices+1>(_M_bound))...);
+ }
+
+ std::tuple<_Callable, _Args...> _M_bound;
+ };
+
+ template<typename _Func, typename... _BoundArgs>
+ struct _Bind_simple_helper
+ {
+ typedef _Maybe_wrap_member_pointer<typename decay<_Func>::type>
+ __maybe_type;
+ typedef typename __maybe_type::type __func_type;
+ typedef _Bind_simple<__func_type(typename decay<_BoundArgs>::type...)>
+ __type;
+ };
+
+ // Simplified version of std::bind for internal use, without support for
+ // unbound arguments, placeholders or nested bind expressions.
+ template<typename _Callable, typename... _Args>
+ typename _Bind_simple_helper<_Callable, _Args...>::__type
+ __bind_simple(_Callable&& __callable, _Args&&... __args)
+ {
+ typedef _Bind_simple_helper<_Callable, _Args...> __helper_type;
+ typedef typename __helper_type::__maybe_type __maybe_type;
+ typedef typename __helper_type::__type __result_type;
+ return __result_type(
+ __maybe_type::__do_wrap( std::forward<_Callable>(__callable)),
+ std::forward<_Args>(__args)...);
+ }
+
/**
* @brief Exception class thrown when class template function's
* operator() is called with an empty target.
* @brief Default construct creates an empty function call wrapper.
* @post @c !(bool)*this
*/
- function() : _Function_base() { }
+ function() noexcept
+ : _Function_base() { }
/**
* @brief Creates an empty function call wrapper.
* @post @c !(bool)*this
*/
- function(nullptr_t) : _Function_base() { }
+ function(nullptr_t) noexcept
+ : _Function_base() { }
/**
* @brief %Function copy constructor.
/// @overload
template<typename _Functor>
typename enable_if<!is_integral<_Functor>::value, function&>::type
- operator=(reference_wrapper<_Functor> __f)
+ operator=(reference_wrapper<_Functor> __f) noexcept
{
function(__f).swap(*this);
return *this;
*
* This function will not throw an %exception.
*/
- explicit operator bool() const
+ explicit operator bool() const noexcept
{ return !_M_empty(); }
// [3.7.2.4] function invocation
*
* This function will not throw an %exception.
*/
- const type_info& target_type() const;
+ const type_info& target_type() const noexcept;
/**
* @brief Access the stored target function object.
*
* This function will not throw an %exception.
*/
- template<typename _Functor> _Functor* target();
+ template<typename _Functor> _Functor* target() noexcept;
/// @overload
- template<typename _Functor> const _Functor* target() const;
+ template<typename _Functor> const _Functor* target() const noexcept;
#endif
private:
template<typename _Res, typename... _ArgTypes>
const type_info&
function<_Res(_ArgTypes...)>::
- target_type() const
+ target_type() const noexcept
{
if (_M_manager)
{
template<typename _Functor>
_Functor*
function<_Res(_ArgTypes...)>::
- target()
+ target() noexcept
{
if (typeid(_Functor) == target_type() && _M_manager)
{
template<typename _Functor>
const _Functor*
function<_Res(_ArgTypes...)>::
- target() const
+ target() const noexcept
{
if (typeid(_Functor) == target_type() && _M_manager)
{
*/
template<typename _Res, typename... _Args>
inline bool
- operator==(const function<_Res(_Args...)>& __f, nullptr_t)
+ operator==(const function<_Res(_Args...)>& __f, nullptr_t) noexcept
{ return !static_cast<bool>(__f); }
/// @overload
template<typename _Res, typename... _Args>
inline bool
- operator==(nullptr_t, const function<_Res(_Args...)>& __f)
+ operator==(nullptr_t, const function<_Res(_Args...)>& __f) noexcept
{ return !static_cast<bool>(__f); }
/**
*/
template<typename _Res, typename... _Args>
inline bool
- operator!=(const function<_Res(_Args...)>& __f, nullptr_t)
+ operator!=(const function<_Res(_Args...)>& __f, nullptr_t) noexcept
{ return static_cast<bool>(__f); }
/// @overload
template<typename _Res, typename... _Args>
inline bool
- operator!=(nullptr_t, const function<_Res(_Args...)>& __f)
+ operator!=(nullptr_t, const function<_Res(_Args...)>& __f) noexcept
{ return static_cast<bool>(__f); }
// [20.7.15.2.7] specialized algorithms
projects / gcc.git / blobdiff