Go language: Pointers

A pointer is used to hold the address of a variable.

Syntax

var pointerName *dataType

Example

var intPtr *int

var a int = 10

intPtr = &a

'intPtr' can able to hold the address of an integer variable. The & operator gives the address of a variable.

App.go

package main

import "fmt"

func main() {
 var intPtr *int

 var a int = 10

 intPtr = &a

 fmt.Println("Value of a is : ", a)

 fmt.Println("\na is stored at address : ", intPtr)
 fmt.Println("Value of a is : ", *intPtr)
}

Output

Value of a is :  10

a is stored at address :  0xc000014058

Value of a is :  10

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