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std::not_equal_to

STD：不[医]平等[医]到

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

用于执行比较的函数对象。除非是专门的，否则调用operator!=论类型T...

专门性

The standard library provides a specialization of std::not_equal_to when T is not specified, which leaves the parameter types and return type to be deduced. not_equal_to function object implementing x != y deducing argument and return types (class template specialization)not_equal_tofunction object implementing x != y deducing argument and return types (class template specialization)(since C++14)
not_equal_to<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()checks if the arguments are not equal (public member function)

STD：不[医]平等[医]致：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)

检查是否lhs是不平等到rhs...

参数

lhs, rhs-values to compare

返回值

true如果lhs != rhs，，，false否则。

例外

%280%29

可能的实施

ConstT&rhs%29 const{返回lhs%21=rhs；}

*。

 © cppreference.com

在CreativeCommonsAttribution下授权-ShareAlike未移植许可v3.0。

http：//en.cppreference.com/w/cpp/实用程序/Functional/Not[医]平等[医]到

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