functional.go

// Attempt at defining a mapping interface for Go

package main

import (
	"fmt";
	"container/list"
	)

func Map (l *list.List, f func (int) int) *list.List {
	nl := list.New();
	for e := range l.Iter() {
		nl.PushBack(f(e.(int)));
	}

	return nl;
}

func main () {
	l := list.New();
	l.PushBack(3);
	l.PushBack(37);

	nl := Map(l, func (i int) int { return i+1 });
	for e := range l.Iter() {
		fmt.Print(e.(int));
	}
	for e := range nl.Iter() {
		fmt.Print(e.(int));
	}

	return;
}