underflow_error Class

 

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The class serves as the base class for all exceptions thrown to report an arithmetic underflow.

class underflow_error : public runtime_error {  
public:  
    explicit underflow_error(const string& message);

    explicit underflow_error(const char *message);

};  

The value returned by what is a copy of message.data.

// underflow_error.cpp  
// compile with: /EHsc /GR  
#include <iostream>  
  
using namespace std;  
  
int main( )  
{  
   try   
   {  
      throw underflow_error( "The number's a bit small, captain!" );  
   }  
   catch ( exception &e ) {  
      cerr << "Caught: " << e.what( ) << endl;  
      cerr << "Type: " << typeid( e ).name( ) << endl;  
   };  
}  
\* Output:   
Caught: The number's a bit small, captain!  
Type: class std::underflow_error  
*\  

Header: <stdexcept>

Namespace: std

<stdexcept> Members
runtime_error Class
Thread Safety in the C++ Standard Library

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