Converting uint[] slice to string for the purpose of hashing?

Enjoys Math via Digitalmars-d-learn digitalmars-d-learn at puremagic.com
Thu Jul 23 05:10:03 PDT 2015


On Thursday, 23 July 2015 at 11:49:05 UTC, cym13 wrote:
> On Thursday, 23 July 2015 at 11:15:46 UTC, Enjoys Math wrote:
>> 1.  Is the best way to hash a uint[] slice
>>
>> 2.  How do you do it?
>
> IIRC, std.digest functions take ubyte[] as input, so to hash a 
> uint[] I would do the following:
>
>     void main(string[] args)
>     {
>         import std.conv;
>         import std.digest.md;
>
>         int[] a   = [1, 2, 3, 4, 5];
>         auto  md5 = new MD5Digest();
>
>         md5.put(a.to!(ubyte[]));
>
>         auto hash = md5.finish();
>         writeln(hash);
>     }

Thanks.  That worked.   Here's my code:

module hashtools;
import std.conv;
import std.digest.md;

string uintSliceToHash(const uint[] slice) {
     auto  md5 = new MD5Digest();
     md5.put(slice.to!(ubyte[]));
     return md5.finish().to!(string);
}

unittest {
     import std.stdio;
     uint[] slice = [1,2,3,4];
     writeln(uintSliceToHash(slice));
}



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