I have the following code.
package main
import "fmt"
func main() {
a := 0
b := 0
a, b += getValues()
fmt.Println(a, b)
}
func getValues() (a int, b int) {
a = 0
b = 5
return
}
I want to directly add the multiple values returned by a function. I just want to if there is a provision like this in Go.
When I run the above code, I get the following error.
syntax error: unexpected +=, expecting := or = or comma
You can use a helper method which takes a variadic number of parameters and just returns the slice created from the params
func aggregator(res ...interface{}) []interface{}{
return res
}
If you want to escape the extra type assertion you can set the type you want to work with, in your case int, for the input and output parameters of the helper function. But here is an example using interface{}:
func main() {
fmt.Printf("%d, %d", aggregator(f())[0].(int), aggregator(f())[1].(int))
}
func aggregator(res ...interface{}) []interface{}{
return res
}
func f () (int, int) {
return 1,2
}