built-in string hash ?

[torhu]

On 28.08.2010 16:37, Kevin Bailey wrote:
> So I have a class containing two strings:
>
> class Foo
> {
> 	string s1, s2;
>
> 	...
>
> and I'd like to add a toHash() member, but I can't find
> the built-in string hash function. These don't work:
>
> s1.toHash()
> s1.toHash
> s1.hash
> s1.hash()
> hash(s1)
>
> yet strings can clearly be the key in a map.
>
> I see that xml.d writes its own string hash function
> but that just doesn't seem right.
>
> Is there a way to get to the built-in ?

You can get to it through TypeInfo:
http://www.digitalmars.com/d/2.0/phobos/object.html#getHash

string a = "abc";

auto hash = typeid(a).getHash(&a);