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

0 vote187 views1 answer
Read contents of a file and convert to list + go
Go
0 vote231 views1 answer
Go divmod
Go
1 vote179 views4 answers
Hello world in golang
Go
1 vote165 views3 answers
Wait group golang
Go
0 vote182 views1 answer
Segoe ui alternative google fonts
Go
0 vote212 views1 answer
Azure or google cloud
Go
1 vote199 views1 answer
Golang get file md5
Go
0 vote178 views1 answer
Go value and reference types
Go
3 votes195 views1 answer
Go rand seed
Go
0 vote225 views1 answer
Snapd unavailable for WSL 2 in Windows
Go