This is my exception, it doesn't work on random test cases, anyone knows why ?

class BadLengthException: public exception { private: int length;

public:
    BadLengthException(int len) : length(len) {}

    virtual const char* what() const noexcept {
        stringstream ss;
        ss << length;
        return (ss.str().c_str());
    }

};

Here is Inherited Code problem solution in C++ - https://programmingoneonone.com/hackerrank-inherited-code-solution-in-cpp.html

I'm also facing this issue on my dunkin donuts menu site.

class BadLengthException{ public: int n; BadLengthException(int e){ n=e; } int what() { return n; } };

If showing error in integer or const something stuffs, just remove the 'const' keyword after as : class BadLengthException : public exception { private: int exceptionname; public: explicit BadLengthException(const int &exceptionexample) { exceptionname = exceptionexample;}

int what()    // removing 'const' after 'what()' works , not any other
{       
    return exceptionname;
}