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Tip of the Day
Language: C++
Expertise: Intermediate
Jan 25, 1999



Application Security Testing: An Integral Part of DevOps

Displaying Exceptions' Description

Standard exception classes are derived from std::exception (defined in the <exception> header). They all implement the member function what(), which returns a const char * with a description of the exception:
 #include <iostream>
#include <exception>
using namespace std;

class A{};
class B{
   public: virtual ~B() {} };

void main()
  B b;
    A a= dynamic_cast < A& > (b); //runtime exception; no conversion from B& to A& exists
  catch (exception & ex) {
    cout<< ex.what() <<endl; //display a verbal description of the exception
Danny Kalev
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