[boost] New library in the Vault: ConstantTimeSize

Hi, Boost.ConstantTimeSize defines a configurable wrapper to the stl container list providing a size function with constant, linear or quasy_constant complexity. You can find the sources, documentation and some test in the Boost Vault. http://www.boostpro.com/vault/index.php?action=downloadfile&filename=constant_time_size.zip&directory=Containers& Any comments are wellcome, Vicente