get non-existence key from hash would cause panic

[qianguozheng]

package main

import (
	hashtable "github.com/timtadh/data-structures/hashtable"
	"fmt"
	types "github.com/timtadh/data-structures/types"
)

func main()  {
	hash := hashtable.NewHashTable(10)
	
	hash.Put(types.String(1),"a")
	v , err :=hash.Get(types.String(1))
	if err != nil{
		fmt.Println(err.Error())
	}else{
		if v != nil{
			fmt.Println(v.(string))
		}
	}
}

[timtadh]

Hi! Sorry for the super slow response (I was out of town this past week). I will take a look at this ASAP. You may in the mean time want to use the Linear Hash Table which has better performance.

[timtadh]

Hi, it doesn't look like a panic occurs to me. The stack trace is printed out because all errors from this library should have a stack trace attached to them. Let me know if you have any questions.

[timtadh]

Closing this issue. This sample code makes it more obvious:

package main

import (
	"fmt"

	hashtable "github.com/timtadh/data-structures/hashtable"
	types "github.com/timtadh/data-structures/types"
)

func main() {
	hash := hashtable.NewHashTable(10)
	hash.Put(types.Int(1), "a")
	v, err := hash.Get(types.Int(2))
	if err != nil {
		fmt.Println("this is an error not a panic\n", err)
	} else {
		if v != nil {
			fmt.Println(v.(string))
		}
	}
	fmt.Println("done")
}