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 vote145 views1 answer
Go imports
Go
0 vote155 views1 answer
Googe drive mount google colab
Go
2 votes152 views1 answer
Golang read file line by line
Go
0 vote137 views1 answer
Convert canvas to DataUrl and insert image in google sheet
Go
0 vote176 views1 answer
How to count the rows returned by a query context go
Go
0 vote201 views1 answer
Create json in go
Go
0 vote145 views3 answers
Golang 2 dimensional array
Go
5 votes135 views3 answers
Go format string
Go
0 vote127 views1 answer
Golang convert from ISO 8601 to milliseconds
Go
0 vote135 views1 answer
Package is not in GOROOT (/usr/local/go/src/) - golang
Go