[c-prog] Constructor calling

[Jos Timanta Tarigan]

Hi, 

I got question. 
I have a constructor with parameter like this one:

Vertex4f::Vertex4f(const Vertex4f& _v){

        this->x = _v.x;
        this->y = _v.y;
        this->z = _v.z;
        this->w = _v.w;

}

why do i have an error while doing this:

Vertex4f v1, v2, v3;
v1(this->vertices[this->triangles[i].getV1()]);
v2(this->vertices[this->triangles[i].getV2()]);
v3(this->vertices[this->triangles[i].getV3()]);

but not error by doing this:

Vertex4f v1(this->vertices[this->triangles[i].getV1()]);
Vertex4f v2(this->vertices[this->triangles[i].getV2()]);
Vertex4f v3(this->vertices[this->triangles[i].getV3()]);

Isnt it just a matter of "make now assign later" kind of thing? 



Thanks