extconf.rb in google_hash-0.9.0

- old
+ new

@@ -37,11 +37,12 @@
   unreachable_int = "1<<31"
   unreachable_long = "(long) 1<<63" # TODO NaN here instead or something? land mine otherwise? hmm...
 end
 
 ruby_key =  {:convert_keys_from_ruby => "", :convert_keys_to_ruby => "", :key_type => "VALUE", :english_key_type => "ruby",
-  :extra_hash_params => ", hashrb, eqrb", :unreachable_key => "current_instance"}  # TODO unreachable -> NULL instead?
+  :extra_hash_params => ", hashrb, eqrb", :unreachable_key => "(VALUE) 0", :deleted_key => "(VALUE) -1"}  
+# VALUE is a 64bit pointer as far as I can tell...so using 0 OK here since they'll never be NULL in real C land
   
 int_key = {:assert_key_type => 'T_FIXNUM', :convert_keys_from_ruby => "FIX2INT",
   :convert_keys_to_ruby => "INT2FIX", :key_type => "int", :unreachable_key => "#{unreachable_int}"}
   
 # "long" is useful on 64 bit...since it can handle a wider range of incoming int's
@@ -76,9 +77,10 @@
     options = key.merge(value)
     for type in ['sparse', 'dense'] do
 
       # create local variables so that the template can look cleaner
       unreachable_key = options[:unreachable_key]
+      deleted_key = options[:deleted_key] || "(#{options[:unreachable_key]}) - 1"
       convert_keys_from_ruby = options[:convert_keys_from_ruby]
       convert_keys_to_ruby = options[:convert_keys_to_ruby]
       key_type = options[:key_type]
       value_type = options[:value_type]
       english_key_type = options[:english_key_type] || options[:key_type]