Passing Initializer lists

You can pass an initializer list as a parameter if that list can be converted to the type of the parameter. For example:

    struct point { int x; int y; }; 

    void set_point(point pt); 

    int main() 
    { 
        point p; 
        p.x = 1; p.y = 1; 
        set_point(p); 
        set_point({ 1, 1 });  
        return 0; 
    }

This code defines a structure that has two members. In the main function, a new instance of point is created on the stack and it is initialized by accessing the members directly. The instance is then passed to a function that has a point parameter. Since the parameter of set_point is pass-by-value, the compiler creates a copy of the structure on the stack of the function. The second call of set_point does the same: the compiler will create a temporary point object on the stack of the function and initialize it with the values in the initializer list.