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std:: uses_allocator <std::promise>

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std::promise
template < class R, class Alloc >
struct uses_allocator < std:: promise < R > , Alloc > : std:: true_type { } ;
(C++11以降)

std::uses_allocator 型特性の特殊化を std::promise に対して提供します。

目次

std:: integral_constant からの継承

メンバ定数

value
[static]
true
(public static member constant)

メンバ関数

operator bool
オブジェクトを bool に変換し、 value を返す
(public member function)
operator()
(C++14)
value を返す
(public member function)

メンバ型

型 定義
value_type bool
type std:: integral_constant < bool , value >

関連項目

(C++11)
指定された型がuses-allocator構築をサポートするかどうかをチェックする
(クラステンプレート)