package main

// A little example of currying in Go
// gtowell
// Oct 7, 2023
//
// Usage curry 3 2 3 4 5 6
// Output
// 2 --> 8
// 3 --> 27
// 4 --> 64
// 5 --> 125
// 6 --> 216
import (
	"fmt"
	"math"
	"os"
	"strconv"
)

// The function that generates the curried function
// in this case, the currying function just reduces the number of params to
// the math.Pow function by one
// It also makes the func work with int args
func curryPowInt(power int) func(int) int {
	a := float64(power)
	f := func(p int) int {
		pf := float64(p)
		v := math.Pow(pf, a)
		return int(v)
	}
	return f
}

func main() {
	// get the power to raise things to -- as an integer
	v,_ := strconv.Atoi(os.Args[1])
	// create the curried function
	pV := curryPowInt(v)
	// use the function on the remainder of the command line args
	for i:=2; i<len(os.Args); i++ {
		v,_ = strconv.Atoi(os.Args[i])
		fmt.Printf("%v --> %v\n", v, pV(v));
	}
}