golang closure variable scope
- by waaadim
I'm reading 'CreateSpace An Introduction to Programming in Go 2012'
and on page 86 I found this evil magic
func makeEvenGenerator() func() uint {
i := uint(0)
return func() (ret uint) {
ret = i
i += 2
return
}
}
// here's how it's called
nextEven := makeEvenGenerator()
fmt.Println(nextEven())
fmt.Println(nextEven())
fmt.Println(nextEven())
1) Why is i not resetting ?
2) is nextEven() returning and uint or is Println so smart that it can work with everything ?
