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std::invalid_argument

性病：：无效[医]论辩

Defined in header ​​
class invalid_argument;​​

定义要作为异常抛出的对象类型。它报告由于参数值未被接受而产生的错误。

引发此异常std::bitset::bitset，以及std::stoi和std::stof功能族。

二次

二次

继承图

成员函数

(constructor)constructs the exception object (public member function)

性病：：无效[医]论据：：无效[医]论辩

explicit invalid_argument( const std::string& what_arg (1)​
explicit invalid_argument( const char* what_arg (2)(since C++11)

构造异常对象what_arg作为解释性字符串，可以通过what()...

因为复制std::exception不允许抛出异常，此消息通常作为单独分配的引用计数字符串存储在内部。这也是为什么没有构造函数std::string&&：：无论如何，它必须复制内容。

参数

what_arg-explanatory string

例外

可抛std::bad_alloc...

继承自STD：例外

成员函数

(destructor) virtualdestructs the exception object (virtual public member function of std::exception)
what virtualreturns an explanatory string (virtual public member function of std::exception)

注记

此异常类型的用途类似于错误条件。std::errc::invalid_argument%28std::system_error的成员职能std::thread%29及相关的errno常数EINVAL...

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