std::logical_not

 

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plus minus negate multiplies divides modulus logical_and logical_or logical_not	equal_to not_equal_to greater less greater_equal less_equal bit_and bit_or bit_xor
否定词 Original: Negators The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
unary_negate binary_negate	not1 not2
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Defined in header <functional>
template< class T > struct logical_not;

函数对象进行逻辑NOT（逻辑否定）。有效地调用operator!类型T.

Original:

Function object for performing logical NOT (logical negation). Effectively calls operator! for type T.

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会员类型

类型 Original: Type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.	Definition
result_type	bool
argument_type	T

成员函数

operator()	返回逻辑“非”的说法 Original: returns the logical NOT of the argument The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）

的std :: logical_not ::

Original:

std::logical_not::

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operator()

bool operator()( const T& arg ) const;

Returns the logical NOT of arg.

Parameters

arg

-

值来计算逻辑“非” Original: value to compute logical NOT of The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Return value

The result of !arg.

Exceptions

(none)

Possible implementation

bool operator()(const T &arg) const { return !arg; }