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C++
应用 | Utilities

std::logical_or

STD::逻辑[医]或

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

函数对象,用于执行逻辑OR%28逻辑分离%29。有效呼叫operator||论类型T...

专门性

The standard library provides a specialization of std::logical_or when T is not specified, which leaves the parameter types and return type to be deduced. logical_or function object implementing x || y deducing argument and return types (class template specialization)logical_orfunction object implementing x || y deducing argument and return types (class template specialization)(since C++14)
logical_or<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 OR of the two arguments (public member function)

STD::逻辑[医]或: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)

返回逻辑或lhsrhs...

参数

lhs, rhs-values to compute logical OR of

返回值

结果lhs || rhs...

例外

%280%29

可能的实施

Const T&LHS,Const T&RHS%29 Const{返回LHSRHS;}

*。

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