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 vote412 views1 answer
Axes not compatible with matplotlib pdf
Go
-1 vote363 views4 answers
Materialize
Go
0 vote386 views1 answer
Go ticker
Go
0 vote461 views2 answers
Compiler version at runtime
Go
8 votes397 views4 answers
Golang string split
Go
9 votes412 views2 answers
Go create list length
Go
0 vote393 views1 answer
Union in go
Go
0 vote367 views1 answer
Go count distinct elements in list
Go
0 vote435 views1 answer
Reddit good terraria seed
Go
0 vote327 views1 answer
Check if gorm created successfully
Go