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runtime_error Class 

The class serves as the base class for all exceptions thrown to report errors presumably detectable only when the program executes.


class runtime_error : public exception {
public:
   runtime_error(const string& message);
};

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

// runtime_error.cpp
// compile with: /EHsc /GR
#include <iostream>

using namespace std;

int main( )
{
// runtime_error
   try 
   {
      locale loc( "test" );
   }
   catch ( exception &e ) 
   {
      cerr << "Caught " << e.what( ) << endl;
      cerr << "Type " << typeid( e ).name( ) << endl;
   };
}

Sample Output

Caught bad locale name
Type class std::runtime_error

Header: <stdexcept>

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