glib.h suggestion: update_hash functions

[Darin Adler <darin eazel com>]

I have another suggestion for a hash-related change to <glib.h>.

I often run into situations where I have to hash more than one string. To
handle this, I'd like some additional functions that tie in with
g_str_hash's implementation. These would typically be called in hashing
functions, rather than being hashing functions themselves:

    guint g_str_update_hash (guint old_hash, const gchar * s);
    guint g_int_update_hash (guint old_hash, int i);
    guint g_mem_update_hash (guint old_hash, gconstpointer p, guint c);

You can use a bunch of calls to the update_hash functions in a row to make a
hash for a composite object.

What do you all think? Should I write these up and submit a patch?

    -- Darin