i'm still trying to learn golang when i chance upon the code below. i'm
aware of function return types like int or float, and such but not a
function. how does one interpret the return value of below code?
*package mainimport "fmt"// fibonacci is a function that returns// a
function that returns an int.func fibonacci(x int) func() int { if x <= 1
{ return x } else { return fibonacci(x-1) + fibonacci(x-2) }
return 0}func main() { f := fibonacci() for i := 0; i < 10; i++ {
fmt.Println(f()) }}*
when run, it shows below errors:
*./prog.go:9:10: cannot use x (variable of type int) as type func() int in
return statement./prog.go:11:10: invalid operation: operator + not defined
on fibonacci(x - 1) (value of type func() int)./prog.go:13:9: cannot use 0
(untyped int constant) as func() int value in return
statement./prog.go:17:7: not enough arguments in call to fibonacci have
() want (int)*
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