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std::logical_and

STD：：逻辑[医]和

Defined in header ​​
template< class T > struct logical_and;​(until C++14)
template< class T = void > struct logical_and;​(since C++14)

函数对象，用于执行逻辑连接和%28逻辑连接%29。有效呼叫operator&&论类型T...

专门性

The standard library provides a specialization of std::logical_and when T is not specified, which leaves the parameter types and return type to be deduced. logical_and function object implementing x && y deducing argument and return types (class template specialization)logical_andfunction object implementing x && y deducing argument and return types (class template specialization)(since C++14)
logical_and<void>function object implementing x && y deducing argument and return types (class template specialization)

成员类型

TypeDefinition
result_type(deprecated in C++17)bool
first_argument_type(deprecated in C++17)T
second_argument_type(deprecated in C++17)T

成员函数

operator()returns the logical AND of the two arguments (public member function)

STD：：逻辑[医]操作员%28%29

bool operator()( const T& lhs, const T& rhs ) const;​(until C++14)
constexpr bool operator()( const T& lhs, const T& rhs ) const;​(since C++14)

返回逻辑和lhs和rhs...

参数

lhs, rhs-values to compute logical AND of

返回值

结果lhs && rhs...

例外

%280%29

可能的实施

ConstT&rhs%29 const{返回lhs&rhs；}

*。

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