class
<stdexcept>
std::underflow_error
Underflow error exception
This class defines the type of objects thrown as exceptions to arithmetic underflow errors.
No component of the standard library throws exceptions of this type. It is designed as a standard exception to be thrown by programs.
It is defined as:
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class underflow_error : public runtime_error {
public:
explicit underflow_error (const string& what_arg);
};
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class underflow_error : public runtime_error {
public:
explicit underflow_error (const string& what_arg);
explicit underflow_error (const char* what_arg);
};
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Members
- constructor
- The string passed as what_arg has the same content as the value returned by member what.
The class inherits the what member function from runtime_error.
Exception safety
Strong guarantee: if the constructor throws an exception, there are no side effects.