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std::runtime_error

STD：：运行时[医]误差

Defined in header ​​
class runtime_error;​​

定义要作为异常抛出的对象类型。它报告了由于程序范围以外的事件而导致的错误，这些错误是无法轻易预测的。

类型例外std::runtime_error由下列标准库组件引发：std::locale::locale和std::locale::combine...

此外，标准异常类型std::range_error，，，std::overflow_error，，，std::underflow_error，，，std::regex_error，和std::system_error派生自std::runtime_error...

二次

二次

继承图

成员函数

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

STD：：运行时[医]错误：：运行时[医]误差

explicit runtime_error( const std::string& what_arg (1)​
explicit runtime_error( 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)

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