Hi, The following trait is supposed to make it easier to forward arguments in generic code and in particular string literals. For example, I will use it when I update boost.assign to use const T& arguments instead of T arguments. It could also be used to make a better version of std::make_pair(): template< class F, class S > inline std::pair< typename decayed<F>::type, typename decayed<S>::type > make_pair( const F& f, const S& s ) { return std::pair< typename decayed<F>::type, typename decayed<S>::type >( f, s ); } Any thoughts from the type_traits authors? Do anybody mind if I add this to the cvs and make some docs for the type-traits library? br -Thorsten begin 666 decayed.cpp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` end