Re: 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);