Function reduce

math.go:24–34

(f func(float64, float64) float64)

}

func reduce(f func(float64, float64) float64) Function {
	return func(l *State) int {
		n := l.Top() // number of arguments
		v := CheckNumber(l, 1)
		for i := 2; i <= n; i++ {
			v = f(v, CheckNumber(l, i))
		}
		l.PushNumber(v)
		return 1
	}
}

var mathLibrary = []RegistryFunction{
	{"abs", mathUnaryOp(math.Abs)},