37 lines
		
	
	
		
			710 B
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			37 lines
		
	
	
		
			710 B
		
	
	
	
		
			Go
		
	
	
	
	
	
| // For more tutorials: https://blog.learngoprogramming.com
 | |
| //
 | |
| // Copyright © 2018 Inanc Gumus
 | |
| // Learn Go Programming Course
 | |
| // License: https://creativecommons.org/licenses/by-nc-sa/4.0/
 | |
| //
 | |
| 
 | |
| package main
 | |
| 
 | |
| import "fmt"
 | |
| 
 | |
| func main() {
 | |
| 	var (
 | |
| 		nums   []int
 | |
| 		oldCap float64
 | |
| 	)
 | |
| 
 | |
| 	// loop 10 million times
 | |
| 	for len(nums) < 10e6 {
 | |
| 		// get the capacity
 | |
| 		c := float64(cap(nums))
 | |
| 
 | |
| 		// only print when the capacity changes
 | |
| 		if c == 0 || c != oldCap {
 | |
| 			// print also the growth ratio: c/oldCap
 | |
| 			fmt.Printf("len:%-15d cap:%-15g growth:%-15.2f\n",
 | |
| 				len(nums), c, c/oldCap)
 | |
| 		}
 | |
| 
 | |
| 		// keep track of the previous capacity
 | |
| 		oldCap = c
 | |
| 
 | |
| 		// append an arbitrary element to the slice
 | |
| 		nums = append(nums, 1)
 | |
| 	}
 | |
| }
 |