Returns the hash value of a given string. This is equivalent to
Digest::Class.new(*parameters).digest(string), where extra
parameters, if any, are passed through to the constructor and the
string is passed to #digest().
static VALUE
rb_digest_class_s_digest(int argc, VALUE *argv, VALUE klass)
{
VALUE str;
volatile VALUE obj;
if (argc < 1) {
rb_raise(rb_eArgError, "no data given");
}
str = *argv++;
argc--;
StringValue(str);
obj = rb_obj_alloc(klass);
rb_obj_call_init(obj, argc, argv);
return rb_funcall(obj, id_digest, 1, str);
}