volatile overloading?

Question

I heard that volatile is factor of overloading like const.

If a function is overloaded by volatile parameter, when is the volatile-version called?

I can\'t i

Answer 1

Write a test program to find out.

void func(const int& a)
{
    std::cout << "func(const)" << std::endl;
}

void func(const volatile int& a)
{
    std::cout << "func(const volatile)" << std::endl;
}

int main()
{
    const int a = 0;
    const volatile int b = 0;
    func(a);
    func(b);
    system("pause");
    return 0;
}

will output:

func(const)
func(const volatile)