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std::is_member_function_pointer

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C++
 
ユーティリティライブラリ
支援を入力します (basic types, RTTI, type traits)
動的なメモリ管理
エラー処理
プログラムユーティリティ
可変個引数関数
日付と時刻
関数オブジェクト
initializer_list(C++11)
bitset
hash(C++11)
関係演算子
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Relational operators
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rel_ops::operator!=
rel_ops::operator>
rel_ops::operator<=
rel_ops::operator>=
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Pairs and tuples
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pair
tuple(C++11)
piecewise_construct_t(C++11)
piecewise_construct(C++11)
フォワード、スワップ、および移動
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Swap, forward and move
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swap
forward(C++11)
move(C++11)
move_if_noexcept(C++11)
declval(C++11)
 
支援を入力します
基本的なタイプ
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Basic types
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基本的なタイプ
固定幅の整数型 (C++11)
数値の限界
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Numeric limits
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numeric_limits
Cの数値は、インターフェイスを制限します
実行時型情報
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Runtime type information
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型の特徴
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Type traits
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プライマリタイプカテゴリ
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Primary type categories
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is_void(C++11)
is_array(C++11)
is_pointer(C++11)
is_enum(C++11)
is_union(C++11)
is_class(C++11)
is_function(C++11)
is_object(C++11)
is_scalar(C++11)
is_compound(C++11)
is_integral(C++11)
is_floating_point(C++11)
is_fundamental(C++11)
is_arithmetic(C++11)
is_reference(C++11)
is_lvalue_reference(C++11)
is_rvalue_reference(C++11)
is_member_pointer(C++11)
is_member_object_pointer(C++11)
is_member_function_pointer(C++11)
Typeプロパティ
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Type properties
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is_const(C++11)
is_volatile(C++11)
is_pod(C++11)
is_empty(C++11)
is_polymorphic(C++11)
is_abstract(C++11)
サポートされる操作
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Supported operations
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is_constructible
is_trivially_constructible
is_nothrow_constructible		(C++11)
(C++11)
(C++11)
is_default_constructible
is_trivially_default_constructible
is_nothrow_default_constructible		(C++11)
(C++11)
(C++11)
is_copy_constructible
is_trivially_copy_constructible
is_nothrow_copy_constructible		(C++11)
(C++11)
(C++11)
is_move_constructible
is_trivially_move_constructible
is_nothrow_move_constructible		(C++11)
(C++11)
(C++11)
is_assignable
is_trivially_assignable
is_nothrow_assignable		(C++11)
(C++11)
(C++11)
is_copy_assignable
is_trivially_copy_assignable
is_nothrow_copy_assignable		(C++11)
(C++11)
(C++11)
is_move_assignable
is_trivially_move_assignable
is_nothrow_move_assignable		(C++11)
(C++11)
(C++11)
is_destructible
is_trivially_destructible
is_nothrow_destructible		(C++11)
(C++11)
(C++11)
has_virtual_destructor(C++11)
リレーションシップとプロパティクエリ
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Relationships and property queries
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is_same(C++11)
is_base_of(C++11)
is_convertible(C++11)
alignment_of(C++11)
rank(C++11)
extent(C++11)
型の変更
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Type modifications
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remove_cv
remove_const
remove_volatile		(C++11)
(C++11)
(C++11)
add_cv
add_const
add_volatile		(C++11)
(C++11)
(C++11)
make_signed(C++11)
make_unsigned(C++11)
型変換
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Type transformations
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aligned_storage(C++11)
aligned_union(C++11)
decay(C++11)
enable_if(C++11)
conditional(C++11)
common_type(C++11)
underlying_type(C++11)
result_of(C++11)
形質定数を入力します
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Type trait constants
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integral_constant(C++11)
 
Defined in header <type_traits>
template< class T >
struct is_member_function_pointer;
 (C + + 11以来)
Tは、非静的メンバ関数へのポインタである場合、メンバー定数value等しいtrueを提供しています。その他のタイプのために、valuefalseです.
Original:
If T is pointer to non-static member function, provides the member constant value equal true. For any other type, value is false.
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目次

Inherited from std::integral_constant

Member constants

value
[静的]
true T is a member function pointer type もし、そうでなければfalse
Original:
true if T is a member function pointer type , false otherwise
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(公共の静的メンバ定数)

Member functions

operator bool
boolにオブジェクトは、value返しに変換します
Original:
converts the object to bool, returns value
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(パブリックメンバ関数)

Member types

タイプ
Original:
Type
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 Definition
value_type bool
type std::integral_constant<bool, value>

[編集] 可能な実装

template< class T >
struct is_member_function_pointer_helper : std::false_type {};
 
template< class T, class U>
struct is_member_function_pointer_helper<T U::*> : std::is_function<T> {};
 
template< class T >
struct is_member_function_pointer : is_member_function_pointer_helper<
                                        typename std::remove_cv<T>::type
                                    > {};

[編集] 例

#include <type_traits>
 
class A {
    void member_function() { }
};
 
// fails at compile time if A does not contain member_function as a function.
 
static_assert<std::is_member_function_pointer<decltype(&A::member_function)>::value,
                      "Class does not contain member.");


[編集] も参照してください

(C++11)
タイプかどうかをチェックするには、ポインタ型です
Original:
checks if a type is a pointer type
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(クラステンプレート) [edit]
(C++11)
タイプかどうかをチェックするには、非静的メンバオブジェクトへのポインタです
Original:
checks if a type is a pointer to a non-static member object
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(クラステンプレート) [edit]
(C++11)
 checks if a type is a pointer to a non-static member function or object
(クラステンプレート) [edit]
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