The standard does not require the library to support stateful allocators, and neither does libstdc++ support them AFAICS, but are there any intentions of supporting them in the future? -- -Dhruv Matani. http://www.geocities.com/dhruvbird/ Proud to be a Vegetarian. http://www.vegetarianstarterkit.com/ http://www.vegkids.com/vegkids/index.html