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

2 votes392 views1 answer
Golang read file line by line
Go
0 vote392 views1 answer
Sp500 index google sheets
Go
5 votes404 views2 answers
Unzip a file in google colab
Go
0 vote420 views1 answer
Import cryptocurrency price data into google sheets
Go
0 vote388 views1 answer
Go Length of the array in Go
Go
3 votes373 views3 answers
Download google drive file in linux
Go
0 vote362 views6 answers
The go blog defer panic recover
Go
18 votes542 views4 answers
Connect to mongodb
Go
-1 vote364 views1 answer
I write good code
Go
-2 votes348 views1 answer
How to abandon changes and go last commit
Go