As you know C++ doesn’t have a finally block as most of the newer languages have. But with the code bellow you can simulate similar behavior, I have found is use full in some occasions.

#include <exception>
#include <iostream>

#define __finally catch( ... )
#define __leave throw detail::leave_exception()

namespace detail {
    struct leave_exception: std::exception
    {
        leave_exception():
            std::exception()
        {
        }
    };
}

void func()
{
    bool ok = false;
    try
    {
        if(!ok)
            __leave;
    }
    __finally
    {
        std::cout << "cleaning up" << std::endl;
    }
}

int main(int argc, char* argv[])
{
    func();

    return 0;
}