Pointers in golang

Go pointers

p := Vertex{1, 2}  // p is a Vertex
q := &p            // q is a pointer to a Vertex
r := &Vertex{1, 2} // r is also a pointer to a Vertex

// The type of a pointer to a Vertex is *Vertex

var s *Vertex = new(Vertex) // new creates a pointer to a new struct instance

Go pointers

&	address of / create pointer
*	dereference pointer

Go pointers

func main() {
	i, j := 42, 2701

	p := &i         // point to i
	fmt.Println(*p) // read i through the pointer
	*p = 21         // set i through the pointer
	fmt.Println(i)  // see the new value of i

	p = &j         // point to j
	*p = *p / 37   // divide j through the pointer
	fmt.Println(j) // see the new value of j
}

Pointers in golang

func main () {
  b := *getPointer()
  fmt.Println("Value is", b)
}

Source: devhints.io

Similar codes

1 vote164 views2 answers
Random number golang
Go
0 vote165 views1 answer
Projection on image from camera in godot
Go
8 votes199 views10 answers
Never gonna give you up
Go
0 vote163 views1 answer
How to get data in nested map go
Go
5 votes148 views2 answers
Unzip a file in google colab
Go
16 votes286 views6 answers
Never gonna give you up release date
Go
0 vote149 views1 answer
Google sword
Go
0 vote157 views1 answer
Find options mongo golang order by field
Go
0 vote158 views1 answer
Golang string to array
Go
0 vote142 views2 answers
Sql auto update dupdated_at
Go