package main

import (
    "fmt"
    "strconv"
)

type Foo struct {
    A int
}

func main() {
    var f *Foo
    var err error
    if f, err = Bar("1"); err != nil {
        //Actual error handling
    }
    fmt.Println(f.A)
}

func Bar(input string) (f *Foo, err error) {
    f = new(Foo)
    f.A, err = strconv.Atoi(input)
    return
}