When do we need & in golang

var a = 5
var p = &a // p holds variable a's memory address
fmt.Printf("Address of var a: %p\n", p)
fmt.Printf("Value of var a: %v\n", *p)

// Let's change a value (using the initial variable or the pointer)
*p = 3 // using pointer
a = 3 // using initial var

fmt.Printf("Address of var a: %p\n", p)
fmt.Printf("Value of var a: %v\n", *p)

Source: stackoverflow.com

Similar codes

0 vote57 views1 answer
Zoom map to city with city name google map developer
Go
0 vote112 views1 answer
Why my wifi logo have an Exclamation mark on ubuntu
Go
6 votes113 views1 answer
Never back down
Go
0 vote70 views1 answer
Create rune in golang
Go
3 votes115 views3 answers
Golang time now
Go
0 vote127 views1 answer
How to execute linux command in golang
Go
0 vote140 views1 answer
How to backup raspberry pi sd card
Go
0 vote108 views2 answers
While loop in golang
Go
0 vote172 views3 answers
Assume that you are planning to make a point-of-sale system (POS) that will have the following features in mongodb
Go
3 votes106 views3 answers
Golang get current time
Go