learngo/16-slices/11-slice-internals-4-append/4-example-growth/main.go

// Copyright © 2018 Inanc Gumus
// Learn Go Programming Course
// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
//
// For more tutorials  : https://learngoprogramming.com
// In-person training  : https://www.linkedin.com/in/inancgumus/
// Follow me on twitter: https://twitter.com/inancgumus

package main

import (
	"fmt"
)

func main() {
	ages, oldCap := []int{1}, 1.

	for len(ages) < 5e5 {
		ages = append(ages, 1)

		c := float64(cap(ages))
		if c != oldCap {
			fmt.Printf("len:%-10d cap:%-10g growth:%.2f\n",
				len(ages), c, c/oldCap)
		}
		oldCap = c
	}
}