Does a c++ struct have a default constructor?

Question

I wrote the following code snippet:

void foo()
{
    struct _bar_ 
    {
        int a;
    } bar; 

    cout << \"Value of a is \" << bar.a;
}
<         


        

Answer 1

Do not rely on this functionality it is non-standard

just add

foo() : a() {}

I can't remember the exact state of gcc 4.2 (i think it is too old) but if you were using C++11 you can do the following

foo()=default;