Golang pointers

Question

I am currently learning to program with Go language. I am having some difficulties understanding Go pointers (and my C/C++ is far away now...). In the Tour of Go #52 (http:/

Answer 1

The difference is pass-by-referenve vs pass-by-value.

In func f(v Vertex) the argument is copied into parameter v. In func f(v *Vertex) a pointer to an existing Vertex instance is passed.

When using methods, some of the dereferencing can be done for you, so you can have a method func (v *Vertex) f() and call it without taking a pointer first: v := Vertex{...}; v.f(). This is just a grain of syntax sugar, AFAIK.