Created
May 10, 2019 08:47
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To show what is deterministic meaning in the rand.Intn function on golang context
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| package main | |
| import "fmt" | |
| import "math/rand" | |
| import "time" | |
| func constantSeed() int64 { | |
| return 100 | |
| } | |
| func secondSeed() int64 { | |
| return int64(time.Now().Second()) | |
| } | |
| func nanoSeed() int64 { | |
| return int64(time.Now().Nanosecond()) | |
| } | |
| func printRand(seedName string, f func () int64) { | |
| fmt.Printf("Seeded with %s\n", seedName) | |
| rand.Seed(f()) | |
| fmt.Println(rand.Intn(100)) | |
| fmt.Println("--------------------------------") | |
| } | |
| func main() { | |
| printRand("Constant!", constantSeed) | |
| printRand("Current Second!", secondSeed) | |
| printRand("Current Nanosecond!", nanoSeed) | |
| } | |
Author
meysampg
commented
May 10, 2019
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