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operators (std::error_condition)

运算符=，%21=，<%28std：：Error[医]条件%29

Defined in header ​​
bool operator==( const error_condition& lhs, const error_condition& rhs (1)(since C++11)
bool operator==( const error_code& lhs, const error_condition& rhs (2)(since C++11)
bool operator==( const error_condition& lhs, const error_code& rhs (2)(since C++11)
bool operator!=( const error_condition& lhs, const error_condition& rhs (3)(since C++11)
bool operator!=( const error_code& lhs, const error_condition& rhs (4)(since C++11)
bool operator!=( const error_condition& lhs, const error_code& rhs (4)(since C++11)
bool operator<( const error_condition& lhs, const error_condition& rhs (5)(since C++11)

比较两种错误条件。

1-2%29检查lhs和rhs是平等的。

3-4%29次检查lhs和rhs不平等。

5%29检查是否lhs是少于rhs...

参数

lhs, rhs-error conditions to compare

返回值

1%29true如果错误类别和错误值比较相等。

2%29true如果lhs.category().equivalent(lhs.value(), rhs)或rhs.category().equivalent(lhs, rhs.value())是true...

3%29true如果错误类别或错误值比较不相等。

4%29true如果lhs.category().equivalent(lhs.value(), rhs)和rhs.category().equivalent(lhs, rhs.value())都是false...

5%29true如果lhs.category() < rhs.category().否则，true如果lhs.category() == rhs.category() && lhs.value() < rhs.value().否则，false...

例外

noexcept规格：

noexcept

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